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postweld heat treatment
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Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005645
EISBN: 978-1-62708-174-0
... Abstract This article is a compilation of tables that provide information on preheat and interpass temperatures and the postweld heat treatment for selected carbon steels, as well as steel pressure vessels and pipe welds. Information is also provided for preheat and interpass temperatures...
Abstract
This article is a compilation of tables that provide information on preheat and interpass temperatures and the postweld heat treatment for selected carbon steels, as well as steel pressure vessels and pipe welds. Information is also provided for preheat and interpass temperatures of heat treatable steels, namely, low-alloy steels and ultra high-strength steels.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001424
EISBN: 978-1-62708-173-3
... Abstract This article provides an overview of the types of postweld heat treatment processes carried out in solid-solution-strengthened and precipitation-strengthened nonferrous high-temperature nickel and cobalt alloys. nonferrous high-temperature materials postweld heat treatment...
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Published: 01 January 1996
Fig. 4 Effect of postweld heat treatment on the Charpy V-notch 54 J transition temperature for 2 1 4 Cr-1Mo steel (A387, grade 11). N&T, normalized-and-tempered; Q&T, quenched-and-tempered; SR, stress relieved. Source: Ref 13
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Published: 01 June 2016
Fig. 34 Postweld heat treatment cracking tendency of Waspaloy as a function of aging time and temperature. Nominal composition: Ni-20%Cr-14%Co-4%Mo-3%Ti-1%Al
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Published: 31 October 2011
Fig. 47 Postweld heat treatment cracking in nickel-base alloys. (a) Thermal cycles during welding and heat treating. (b) Cross section of the weld showing fusion zone (FZ) and heat-affected zone. (c) Changes in microstructure. Adapted from Ref 7
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Published: 30 August 2021
Fig. 34 Stress relaxation in carbon steels as a function of postweld heat treatment temperature and hold time. Adapted from Ref 160
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Published: 01 January 2002
Fig. 28 Large welded tube that cracked upon postweld stress-relief heat treatment ( example 12 )
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Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001410
EISBN: 978-1-62708-173-3
... and postweld heat treatment. copper contamination cracking crevice corrosion ductility dip cracking intergranular attack interpass heat treatments material selection microbiologically influenced corrosion pitting corrosion porosity post weld heat treatment solidification solidification...
Abstract
Austenitic stainless steels exhibit a single-phase, face-centered cubic structure that is maintained over a wide range of temperatures. This article reviews the compositions of standard and nonstandard austenitic stainless steels. It summarizes the important aspects of solidification behavior and microstructural evolution that dictate weld-metal ferrite content and morphology. The article describes weld defect formation, namely, solidification cracking, heat-affected zone liquation cracking, weld-metal liquation cracking, copper contamination cracking, ductility dip cracking, and weld porosity. It discusses four general types of corrosive attack: intergranular attack, stress-corrosion cracking, pitting and crevice corrosion, and microbiologically influenced corrosion. The article concludes with information on weld thermal treatments such as preheat and interpass heat treatments and postweld heat treatment.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001435
EISBN: 978-1-62708-173-3
... techniques, such as groove face grooving, studding, joint design modifications, and peening, for improving the strength of a weld or its fitness for service. The article discusses the need for postweld heat treatment that depends on the condition of the casting, possible distortion during subsequent...
Abstract
Cast iron can be described as an alloy of predominantly iron, carbon, and silicon. This article discusses the classification of cast irons, such as gray cast iron, white cast iron, malleable cast iron, ductile cast iron, and compacted graphite iron. It reviews the various special techniques, such as groove face grooving, studding, joint design modifications, and peening, for improving the strength of a weld or its fitness for service. The article discusses the need for postweld heat treatment that depends on the condition of the casting, possible distortion during subsequent machining, the desired finish of the machined surfaces, and prior heat treatment. It describes various welding process for welding cast irons, including oxyfuel welding, braze welding, shielded metal arc welding, gas metal arc welding, and gas-tungsten arc welding.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001406
EISBN: 978-1-62708-173-3
... the influence of welding procedure factors on the weldment properties. These procedure factors include preheat temperature, interpass temperature, postweld heat treatment, and heat input. carbon steel heat input heat-affected zone interpass temperature low-alloy steels post weld heat treatment...
Abstract
This article describes the fundamental and specific factors that control the properties of steel weldments in both the weld metal and heat-affected zone (HAZ) of carbon and low-alloy steels. It provides information on steel types and their weldability. The article also explains the influence of welding procedure factors on the weldment properties. These procedure factors include preheat temperature, interpass temperature, postweld heat treatment, and heat input.
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005345
EISBN: 978-1-62708-187-0
... on the surface preparation, weld repair process selection, joint selection, filler metal selection, weld repair considerations, deposition techniques, postweld heat treatment, and verification of weld repair quality. castings ferrous materials filler metal selection nonferrous materials postweld heat...
Abstract
Repair welding is a necessary operation for most fabricators and can cost more than the price of the original component if performed improperly. This article provides a discussion on the repair welding of castings for ferrous and nonferrous materials. The discussion focuses on the surface preparation, weld repair process selection, joint selection, filler metal selection, weld repair considerations, deposition techniques, postweld heat treatment, and verification of weld repair quality.
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005633
EISBN: 978-1-62708-174-0
... flashing flash-welding machines postweld heat treatment preweld preparation solid-state upset welding upset welding upsetting FLASH WELDING, also called flash butt welding, is a resistance welding process in which a butt joint weld is produced by a flashing action and by the application...
Abstract
Flash welding, also called flash butt welding, is a resistance welding process in which a butt joint weld is produced by a flashing action and by the application of pressure. The flash welding process consists of preweld preparation, flashing, upsetting (forging), and postweld heat treatment. This article provides an overview of both flash welding and upset welding and describes the various process and failure origins of flash welding as well as the equipment used. It also explains the characteristics and advantages of solid-state upset welding.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001408
EISBN: 978-1-62708-173-3
... Abstract This article describes general welding characteristics such as weld microstructure and weldability. The correlations of preheating and postweld heat treatment practices with carbon contents and welding characteristics of martensitic stainless steels are reviewed. The article contains...
Abstract
This article describes general welding characteristics such as weld microstructure and weldability. The correlations of preheating and postweld heat treatment practices with carbon contents and welding characteristics of martensitic stainless steels are reviewed. The article contains a table that lists the electrodes and welding rods suitable for use as filler metals in the welding of martensitic stainless steels. It provides specific arc welding procedural recommendations for the commonly welded martensitic stainless steels. Martensitic stainless steel joining methods such as laser-and electron-beam welding, resistance welding, flash welding, and friction welding, are discussed.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001429
EISBN: 978-1-62708-173-3
... Abstract This article discusses the welding characteristics, welding metallurgy, and postweld heat treatment process of nickel-base corrosion-resistant alloys containing molybdenum. It contains tables that provide information on the nominal chemical compositions and physical properties...
Abstract
This article discusses the welding characteristics, welding metallurgy, and postweld heat treatment process of nickel-base corrosion-resistant alloys containing molybdenum. It contains tables that provide information on the nominal chemical compositions and physical properties of the alloys.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001411
EISBN: 978-1-62708-173-3
... development of DSS. It describes the factors influencing welding and weldability of the DSS. These factors include preheating, postweld heat treatment, interpass temperature control, welding practices, welding procedure qualification, filler metal requirements, cracking behavior, and loss of properties...
Abstract
This article provides information on the base material properties of wrought duplex stainless steels (DSS). These properties include microstructure, alloy grades, mechanical and physical properties, and corrosion resistance. The article reviews the applications and microstructural development of DSS. It describes the factors influencing welding and weldability of the DSS. These factors include preheating, postweld heat treatment, interpass temperature control, welding practices, welding procedure qualification, filler metal requirements, cracking behavior, and loss of properties. The article examines the applicable welding processes such as fusion welding and solid-state welding processes.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001433
EISBN: 978-1-62708-173-3
... of filler metals and other consumables Properties of weld deposits Preheating and postweld heat-treatment requirements determined by the metallurgical characteristics of the low-alloy steel When compared with other steels, the arc welding of low-alloy steels can require greater emphasis on some...
Abstract
This article discusses factors involved in selecting welding processes and consumables and establishing procedures and practices for the arc welding of low-alloy steels. It provides information on welding consumables in terms of filler metals and fluxes and shielding gases. The article describes the various categories of low-alloy steels, such as high-strength low-alloy (HSLA) structural steels, high-strength low-alloy quenched and tempered(HSLA Q&T) structural steels, low-alloy steels for pressure vessels and piping, medium-carbon heat-treatable (quenched and tempered) low-alloy (HTLA) steels, ultrahigh-strength low-alloy steels, and low-alloy tool and die steels. It concludes with a discussion on repair practices for tools and dies.
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Published: 01 January 1993
temperature 120 °C (250 °F) 150 °C (300 °F) 120–175 °C (250–350 °F) Postweld heat treatment 150 °C (300 °F) for 3 h 205 °C (400 °F) for 2 h 150 °C (300 °F) for 4 h Total time per piece (c) 1 2 h 2 h 1 2 h (a) For all three applications, preweld cleaning was done
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in Modeling of Metallurgical Microstructure Evolution in Fusion Welding
> Welding Fundamentals and Processes
Published: 31 October 2011
Fig. 11 Schematic diagrams showing the microstructure evolution during multistage thermal processing of Al-Mg-Si alloys involving heat treatment and welding. AA, artificial aging; W, welding; PWHT, postweld heat treatment. The outer boundary of the heat-affected zone is indicated
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Published: 01 January 1993
Fig. 3 Effect of heating rate on the cracking tendency of solution-annealed (before welding) René 41 during postweld heat treatment. Source: Ref 4
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Published: 30 August 2021
Fig. 6 Optical micrograph of a longitudinal high-frequency electric resistance seam weld showing the classic “hourglass” heat-affected zone shape around the bond line. PWHT, postweld heat treatment
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