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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004151
EISBN: 978-1-62708-184-9
.... It provides information on the fuels with chlorine contents used in gasification plants. gasification plants high-temperature corrosion material selection criteria chlorine content synthetic gas coolers long-term performance INTENSIVE DEVELOPMENT of gasification technology has been carried out...
Abstract
This article focuses on high-temperature corrosion in synthetic gas (syngas) coolers. Extensive laboratory corrosion studies on both model and commercial alloys are summarized. The article describes the material selection criteria for long-term performance of materials in service. It provides information on the fuels with chlorine contents used in gasification plants.
Image
Published: 01 January 2006
Fig. 11 Corrosion losses of stainless steels and nickel alloys from a coal-gasification plant, gasifying coal residues with 0.2 to 0.5% Cl. 304 (UNS S30400), 310Nb (UNS S31040), 800 (UNS N08800), 28 (UNS N08028), 625 (UNS N06625)
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Image
Published: 01 January 2006
Fig. 1 Coal-gasification combined-cycle CGCC power plant. HRSG, heat recovery steam generator. Acid gas removal uses MDEA, methyldiethanolamine
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Book Chapter
Book: Fractography
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000615
EISBN: 978-1-62708-181-8
..., fracture toughness, sulfidation corrosion failure, and interdendritic attack of gas sampling line couplings of coal-gasification pilot plants of these superalloys. couplings fractograph fracture modes fracture toughness iron-base alloys neutron irradiation effect sulfidation superalloys...
Abstract
This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of iron-base superalloys and in identifying and interpreting the morphology of fracture surfaces. The fractographs illustrate the neutron irradiation effect, fracture mode, fracture toughness, sulfidation corrosion failure, and interdendritic attack of gas sampling line couplings of coal-gasification pilot plants of these superalloys.
Image
Published: 01 January 1987
Fig. 633 Failure of AISI type 304 product gas line due to polythionic acid stress-corrosion cracking (SCC). The 205-mm (8-in.) diam Schedule 140 pipe was used in a coal-gasification pilot plant to transport product gas from the gasifier at a temperature of 430 °C (800 °F). The gas line failed
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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004150
EISBN: 978-1-62708-184-9
... wastes are also important, and there are now plants and trees that are being specifically grown for fuel use. Various wastes, such as industrial wastes and municipal solid wastes (MSWs), are increasingly being used as fuels. These fuels also contain impurities of one kind or another; waste wood...
Abstract
The primary fossil fuels are generally defined as coal, oil, natural gas, tar sands, and shale oil. This article discusses the characteristics and the types of fuels used in fossil and fuel industries. It describes the energy conversion in fuels and outlines the efficiency of a heat engine with the help of the Carnot equation.
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
.... , Park J.Y. , and Mamoun M.M. , Solid Particle Erosion of a Cyclone from a Coal Gasification Pilot Plant , Wear of Material 1981 , American Society of Mechanical Engineers , 1981 , p 619 – 624 30. Youngdahl C.A. , Pater K. , and Gorski M.J. , Erosive Wear and Design...
Abstract
Erosion occurs as the result of a number of different mechanisms, depending on the composition, size, and shape of the eroding particles; their velocity and angle of impact; and the composition of the surface being eroded. This article describes the erosion of ductile and brittle materials with the aid of models and equations. It presents three examples of erosive wear failures, namely, abrasive erosion, erosion-corrosion, and cavitation erosion.
Book: Thermal Spray Technology
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005708
EISBN: 978-1-62708-171-9
... of biomass fuels (e.g., wood, straw, or fast-growing energy crops), and each has its own issues, generally in the form of corrosion and/or erosion of the heat-exchanging surfaces by the combustion products ( Ref 9 ). Corrosion issues in biomass gasification plants that are used to fire gas turbines...
Abstract
The use of renewable energy has grown strongly in all end-use sectors such as power, heat, and transport. This article describes thermal spray applications that improve efficiency, lower maintenance costs, and prolong operational life in the renewable energy technologies, including wind power, hydro power, biomass and biofuels, solar energy, and fuel cells.
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
.... , and Mamoun M.M. , Solid Particle Erosion of a Cyclone from a Coal Gasification Pilot Plant , Wear of Material 1981 , American Society of Mechanical Engineers , 1981 , p 619 – 624 29. Youngdahl C.A. , Pater K. , and Gorski M.J. , Erosive Wear and Design Evaluation...
Abstract
Erosion is the progressive loss of original material from a solid surface due to mechanical interaction between that surface and a fluid, a multicomponent fluid, an impinging liquid, or impinging solid particles. The detrimental effects of erosion have caused problems in a number of industries. This article describes the processes involved in erosion of ductile materials, brittle materials, and elastomers. Some examples of erosive wear failures are given on abrasive erosion, liquid impingement erosion, cavitation, and erosion-corrosion. In addition, the article provides information on the selection of materials for applications in which erosive wear failures can occur.
Book Chapter
Book: Fractography
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000610
EISBN: 978-1-62708-181-8
... to polythionic acid stress-corrosion cracking (SCC). The 205-mm (8-in.) diam Schedule 140 pipe was used in a coal-gasification pilot plant to transport product gas from the gasifier at a temperature of 430 °C (800 °F). The gas line failed by through-wall cracking around 270° of its circumference near a weld...
Abstract
This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of austenitic stainless steels and in identifying and interpreting the morphology of fracture surfaces. The fractographs illustrate the following: fatigue-crack fracture, rock candy fracture, cleavage fracture, brittle fracture, high-cycle fatigue fracture, fatigue striations, hydrogen-embrittlement failure, creep crack propagation, fatigue crack nucleation, intergranular creep fracture, torsional overload fracture, stress-corrosion cracking, and grain-boundary damage of these steels. The austenitic stainless steel components include spring wires, preheater-reactor slurry transfer lines and gas lines of coal-liquefaction pilot plants, oil feed tubes and suction couch rolls of paper machines, cortical screws and compression hip screws of orthopedic implants, and Jewett nails.
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003013
EISBN: 978-1-62708-200-6
... or gases is known as pyrolytic liquefaction or gasification. PET Recycling The recycling of PET, particularly the PET beverage bottle, is the success story of the plastics industry. The growth of postconsumer recycling of PET began almost simultaneously with the introduction of the bottle in 1977...
Abstract
This article discusses postconsumer plastics recyclate quantities, the classification of plastics recycling into primary, secondary, tertiary, and quaternary categories, and how the life cycle of plastics is affected by recycling. The recycling processes of polyethylene terephthalate (PET), which accounts for the largest percentage of plastic recycling, high-density polyethylene (HDPE) plastics, the other large-volume plastic recyclate, as well as vinyl resins and polycarbonate resins are described. The life cycle of plastics has four phases: poly formation, part fabrication, product service, and disposal. Landfilling is still the primary method of final disposal, and incineration is another option, but recycling has become a viable alternative. The article presents a comparison between secondary and tertiary recycling.
Book Chapter
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003567
EISBN: 978-1-62708-180-1
..., in an ore chute in a minerals processing plant, where moist ore particles slide on an inclined platform, chute, or screen. Figure 1 shows a worn wire-cloth screen in a minerals processing plant. Another example is a submerged valve that opens and closes to control the flow of material. Here, the parts...
Abstract
This article focuses on the corrosion-wear synergism in aqueous slurry and grinding environments. It describes the effects of environmental factors on corrosive wear and provides information on the impact and three-body abrasive-corrosive wear. The article also discusses the various means for combating corrosive wear, namely, materials selection, surface treatments, and handling-environment modifications.
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002472
EISBN: 978-1-62708-194-8
... aggressive in that it diffuses more rapidly and embrittles more severely than does oxygen ( Ref 66 ). It is also frequently found in coal gasification and oil-refining processes as well as industrial gas turbines operating on impure fuel. Design Methodology This section describes the basic...
Abstract
This article reviews the basic mechanisms of elevated-temperature behavior and associated design considerations, with an emphasis on metals. It discusses the key concepts of elevated-temperature design. These include plastic instability at elevated temperatures; deformation mechanisms and strain components associated with creep processes; stress and temperature dependence; fracture at elevated temperatures; and environmental effects. The article describes the basic presentation and analysis methods for creep rupture. It provides information on the application of these methods to materials selection and the setting of basic design rules. The article examines the limitations of high-temperature components as well as the alternative design approaches and tests for most high-temperature components.
Book: Corrosion: Materials
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003821
EISBN: 978-1-62708-183-2
..., in Fig. 16 and 17 . Alloys 28 (N08028) and 31 (N08031) are austenitic stainless steels containing 27 wt% Cr and moderate molybdenum contents (3.5 and 6.5 wt%, respectively). From these data, it is evident that: The 42 wt% acid from this Florida plant is more corrosive than the 54 wt% acid...
Abstract
This article reviews the corrosion behavior in various environments for seven important nickel alloy families: commercially pure nickel, Ni-Cu, Ni-Mo, Ni-Cr, Ni-Cr-Mo, Ni-Cr-Fe, and Ni-Fe-Cr. It examines the behavior of nickel alloys in corrosive media found in industrial settings. The corrosive media include: hydrochloric acid, sulfuric acid, phosphoric acid, hydrofluoric acid, hydrobromic acid, nitric acid, organic acids, salts, seawater, and alkalis. The modes of high-temperature corrosion include oxidation, carburization, metal dusting, sulfidation, nitridation, corrosion by halogens, and corrosion by molten salts. Applications where the corrosion properties of nickel alloys are important factors in materials selection include the petroleum, chemical, and electrical power industries. Most nickel alloys are much more resistant than the stainless steels to reducing acids, such as hydrochloric, and some are extremely resistant to the chloride-induced phenomena of pitting, crevice attack, and stress-corrosion cracking (to which the stainless steels are susceptible). Nickel alloys are also among the few metallic materials able to cope with hot hydrofluoric acid. The conditions where nickel alloys suffer environmentally assisted cracking are highly specific and therefore avoidable by proper design of the industrial components.
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006415
EISBN: 978-1-62708-192-4
... in direction does not produce eddies. Slurry particles impart damage to the bottom of the pipe by tumbling and sliding in straight pipe sections. See also “Two-Body Corrosive Wear” in this article. Sliding Wear Sliding wear occurs, for example, in an ore chute in a minerals processing plant, where...
Abstract
Tribocorrosion is the subject dealing with complex, synergistic effects of chemical and mechanical conditions that cause wear. This article begins with a discussion on oxidative wear and corrosive wear, as well as quantitative measurements of corrosion, mechanical wear, and wear-corrosion effects. It illustrates the mechanism of corrosive-abrasive wear and discusses the factors affecting two-body wear. These factors include particle shape, size, density, and hardness; slurry velocity; slurry particle angle of attack; solids concentration in the slurry; hydrodynamic factors; corrosion products and the mass transfer of oxygen. The article describes slurry particle impingement tests and grinding tribocorrosion tests, as well as the factors to be considered for mitigating corrosive wear, such as materials selection, surface treatments, and environment modifications.
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006433
EISBN: 978-1-62708-192-4
Abstract
Solid particle erosion (SPE) is the loss of material that results from repeated impact of solid particles energized in a carrier fluid. This article reviews important SPE variables, their effects for different classes of materials, composites and coatings, and the mechanisms and theories proposed to explain SPE. It discusses the SPE of metals, steels, and ceramics, as well as erosion of alloys with coarse, nominally two-phase microstructures in which the second-phase particles (SPPs) are typically large compared with the dimensions of the damage zone created by the impact of one particle. The article summarizes the erosion characteristics of polymer matrix composites (PMCs), metal matrix composites (MMCs), ceramic matrix composites (CMCs), and erosion-resistant coatings. The combination of parameters included in most erosion models is also summarized.
Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003147
EISBN: 978-1-62708-199-3
... corrosion resistance and/or heat resistance. Some of these include components used in the chemical and petrochemical industries, pollution control equipment, coal gasification and liquefaction systems, parts used in pulp and paper mills, aircraft gas turbines, team turbine power plants, turbochargers...
Abstract
Nickel and nickel-base alloys are vitally important to modern industry because of their ability to withstand a wide variety of severe operating conditions involving corrosive environments, high temperatures, high stresses, and combinations of these factors. This article discusses the mining and extraction of nickel and describes the uses of nickel. It discusses the categories of nickel-base alloys, including wrought corrosion-resistant alloys, cast corrosion-resistant alloys, heat-resistant alloys (superalloys), and special-purpose alloys. The article covers the corrosion resistance of nickel with the inclusion of varying alloying elements. It provides useful information on the behavior of nickel and nickel alloys in specific environments describes its corrosion resistance in certain acids, alkalis, and salts.
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003590
EISBN: 978-1-62708-182-5
... corrosion performance. Higher operation temperatures are desired, because they result in higher efficiencies of engines and process plants. The need to operate within more aggressive environments results from the growing demand to dispose of municipal and industrial wastes and residues. Sulfidation...
Abstract
This article examines the characteristics and behavior of scale produced by various types of oxidation. The basic models, concepts, processes, and open questions for high-temperature gaseous corrosion are presented. The article describes the development of geometrically induced growth stresses, transformation stresses, and thermal stresses in oxide scales. It discusses the ways in which stresses can be relieved. The article provides information on catastrophic oxidation, internal oxidation, sulfidation, alloy oxidation, selective oxidation, and concurrent oxidation. It illustrates the relationships between scale morphologies on binary alloys and concludes with a discussion on metal dusting and chlorine corrosion.
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002473
EISBN: 978-1-62708-194-8
Abstract
Alloys intended for use in high-temperature environments rely on the formation of a continuous, compact, slow-growing oxide layer for oxidation, and hot corrosion resistance. This article focuses on the issues related to high-temperature oxidation of superalloys used in gas turbine engine applications. It discusses the general methodologies used to evaluate oxidation resistance of materials. The article describes the performance characteristics of superalloys, single-crystal superalloys, and other high-temperature materials such as refractory metals and ceramics. It discusses hot corrosion of superalloys and airfoil degradation due to deposits resulting from ingested particles or sand. The article concludes with a discussion on the limitations of testing techniques and life prediction.
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006819
EISBN: 978-1-62708-329-4
... at a midstream gas plant in Pascagoula, Mississippi, as thermal fatigue ( Ref 22 ). This failure resulted in a significant loss of containment of combustible methane, ethane, propane, and several other hydrocarbons. The hydrocarbons ignited, initiating a series of fires and explosions, which ultimately shut down...
Abstract
This article offers an overview of fatigue fundamentals, common fatigue terminology, and examples of damage morphology. It presents a summary of relevant engineering mechanics, cyclic plasticity principles, and perspective on the modern design by analysis (DBA) techniques. The article reviews fatigue assessment methods incorporated in international design and post construction codes and standards, with special emphasis on evaluating welds. Specifically, the stress-life approach, the strain-life approach, and the fracture mechanics (crack growth) approach are described. An overview of high-cycle welded fatigue methods, cycle-counting techniques, and a discussion on ratcheting are also offered. A historical synopsis of fatigue technology advancements and commentary on component design and fabrication strategies to mitigate fatigue damage and improve damage tolerance are provided. Finally, the article presents practical fatigue assessment case studies of in-service equipment (pressure vessels) that employ DBA methods.