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lean alloys

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310069
EISBN: 978-1-62708-286-0
... Abstract This chapter discusses the compositions, mechanical properties, phase structure, stabilization, corrosion resistance, and advantages of austenitic stainless steels. Austenitic alloys are classified and reviewed in three groups: (1) lean alloys, such as 201 and 301, which are generally...
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Published: 01 December 1999
Fig. 4.6 Comparison of calculated and measured retained austenite contents for lean-alloy steels (mainly case-hardening grades). More
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Published: 01 December 1999
Fig. 1.18 Effect of carbon on the hardness of various microstructures observed in plain carbon and lean-alloy steels. Source: Ref 27 More
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Published: 01 December 1999
Fig. 6.37 Relationship between fatigue strength and case depth for two carburized lean-alloy case-hardening steels. Source: Ref 45 More
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Published: 01 December 2000
Fig. 12.15 Toughness versus yield strength of a solute-lean beta titanium alloy, Ti-5Al-2Sn-4Zr-4Mo-2Cr, processed to two different structures More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240527
EISBN: 978-1-62708-251-8
... temperature. Within the alpha-beta class, an alloy that contains much more alpha than beta is often called a near-alpha alloy. The names superalpha and lean-beta alpha are also used for this type of alpha-beta alloy. While these classifications are useful, many of them are actually very close to each other...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120331
EISBN: 978-1-62708-269-3
... of titanium. Understanding their meaning is especially helpful when reading graphs and figures in the general published literature involving titanium. Symbols Table I.1 Symbols Symbol Description α Hexagonal close-packed (hcp) crystal structure in Ti-base alloys α′ Solute-lean, hcp...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230493
EISBN: 978-1-62708-298-3
... ranges. beryllium copper waste recycling 27.1 Introduction Salient beryllium statistics are based mostly on the beryllium content of beryllium-copper alloys and beryllium metal ( Table 27.1 ). In 2000, approximately 130 metric tons of beryllium contained in postconsumer old scrap...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310265
EISBN: 978-1-62708-286-0
.... This reduces the corrosivity of the environment as the ozone and hydrogen peroxide used in the process are relatively harmless to stainless steel. Alloys such as 316 are adequate for this environment, but lean duplex, 2101 or 2304, offer cost reductions through their greater strength. In plants that use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770135
EISBN: 978-1-62708-337-9
... responsible for the depth to which a steel will harden (hardenability), whereas the carbon content largely determines the hardness. Core Hardenability Case-hardening steels are usually lean alloy with total alloying-element contents ranging from about 1 to 6.5% and carbon contents between about 0.1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
... is unknown. Usually, the microstructures that result from beta annealing (or processing) are also easily recognized under the light microscope. Cooling rates govern the grain morphology resulting from beta treatments. Acicular martensitic structures are produced by rapidly cooling beta-lean alloys from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310091
EISBN: 978-1-62708-286-0
... shows the large reduction in σ formation enjoyed by the lean alloy AL 2003™ material compared to the higher molybdenum 2205 alloy (Allegheny Ludlum). Fig. 9 Sigma formation kinetics at various alloy levels Fig. 10 Delay in ( precipitation in lean duplex 2003 There are other...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770011
EISBN: 978-1-62708-337-9
... of the layer and the cooling rate are each significant. A lean-alloy steel or heavy section will tend toward a surface containing pearlite, whereas a more alloyed steel or lighter section will tend toward a bainitic microstructure being formed on quenching. The situation is to some extent confused...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770051
EISBN: 978-1-62708-337-9
... Quenching from above the Ac<sub>cm</sub> Temperature Lean-alloy steel parts that are slowly cooled from the carburizing temperature will likely have a surface microstructure comprised of a mixture of pearlite, bainite, and possibly some martensite enclosed in a carbide network (see Fig. 3.9...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310247
EISBN: 978-1-62708-286-0
.... These are the so-called 6Mo grades. The more advanced of them contain high levels of nitrogen. The more common alloys are UNS S32654 and N08367. The recent development of lean duplex alloys has not yet made its way into OCTGs. These alloys offer an inherent alloy savings over the 13Cr grades in nickel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310173
EISBN: 978-1-62708-286-0
... stress and may have sufficient hardness to be susceptible to delayed failure if placed in a corrosive environment. Bright-annealed alloys with high martensite levels from forming can fail by hydrogen embrittlement with just the residual hydrogen from annealing. Therefore, the use of bright-annealed lean...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770099
EISBN: 978-1-62708-337-9
... The hardenability of a fine-grained steel is less than that of a coarse-grained steel having an identical chemical composition. The same applies to the case hardenability. However, whereas this distinction is especially meaningful for plain carbon and very lean-alloy case-hardening grades and may lead to problems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310213
EISBN: 978-1-62708-286-0
... prices. For projects where quick availability is not more important than cost, 439 and 201 should be considered as viable replacements for 304. Stainless steel 2003 (UNS S32003) or an equivalent lean-duplex grade can replace 316 at a cost advantage during times of high alloy cost as have been experienced...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... of superalloys is governed, as is the solidification of all metals, by the laws of the phase diagram. However, the kinetics of the solidification process determine the microstructure that actually is formed. When solidification occurs, solvent-lean alloy forms first and then grows, usually by dendritic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770077
EISBN: 978-1-62708-337-9
... at relatively high temperatures. For example, for low-carbon steels, these transformations take place at temperatures between the Ac 3 and about 400 °C. Martensite, on the other hand, is a low-temperature transformation product. For a typical low-carbon lean-alloy steel, the martensite transformation range...