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Austenite

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410133
EISBN: 978-1-62708-265-5
... Austenite is the key to the versatility of steel and the controllable nature of its properties. It is the parent phase of pearlite, martensite, bainite, and ferrite. This chapter discusses the importance of austenite, beginning with the influence of austenitic grain size and how to accurately...
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
...Tensile test results on through carburized, hardened, and 180 °C tempered 4320 steel Table 4.1 Tensile test results on through carburized, hardened, and 180 °C tempered 4320 steel Condition Retained austenite, % Offset yield strength, MPa (ksi) 0.2% 0.02% 0.01% 0.001% Ultimate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560221
EISBN: 978-1-62708-291-4
... Fig. 9.1 (Part 1) Pearlite formation (at 705 and 650 °C) in isothermal transformation of 0.8% C eutectoid steels. 0.81C-0.07Si-0.65Mn (wt%). Figure 9.2 completes this series. (a) Austenitized at 860 °C, transformed at 705 °C for 150 s. Picral. 250×. (b) Austenitized at 860 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... for categories of alloying elements in steels. (a) Austenite stabilizers, type I (e.g., Mn, Ni, Co). (b) Austenite stabilizers, type II (e.g., Cu, Zn, Au, N, C). (c) Ferrite stabilizers, type I (e.g., Si, Cr, Mo, P, V, Ti, Be, Sn, Sb, As, Al). (d) Ferrite stabilizers, type II (e.g., Ta, Zr, B, S, Ce, Nb). Source...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140107
EISBN: 978-1-62708-264-8
...Abstract Abstract The first step in the hardening of steel is getting it hot enough to form austenite, from which martensite can form upon quenching. Not all steels have the same austenitization requirements, however. High-carbon wear-resistant steels, such as bearing and tool steels, require...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560185
EISBN: 978-1-62708-291-4
... Fig. 8.1 Austenitization of a high-carbon steel. Original structure: ferrite and spheroidized cementite. The dark-etching areas were austenitic prior to quenching. The mid-tone areas are cementite. The lightest areas are ferrite. (a) Unheated. Picral. 1500×. (b) Heated at 745 °C for 5 s...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170242
EISBN: 978-1-62708-297-6
...Abstract Abstract This article provides an overview of austenitic manganese steels. It describes the standard composition ranges of commercial products and explains how various alloying elements affect mechanical properties, processing, and performance. The article also discusses special grades...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130537
EISBN: 978-1-62708-284-6
...Abstract Abstract This appendix consists of tables listing temperatures recommended for austenitizing carbon and low-alloy steels prior to hardening. austenitizing temperature carbon steel low-alloy steel TEMPERATURES RECOMMENDED for austenitizing carbon and low-alloy steels prior...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310069
EISBN: 978-1-62708-286-0
...Typical compositions of the most commonly used lean austenitic alloys Table 1 Typical compositions of the most commonly used lean austenitic alloys Alloy Designation C N Cr Ni Mo Mn Si Other Other Other 201 S20100 0.08 0.07 16.3 4.5 0.2 7.1 0.45 0.001 S 0.03 P...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700151
EISBN: 978-1-62708-279-2
...Principal types of austenitic stainless steels (AUST SS) Table 10.1 Principal types of austenitic stainless steels (AUST SS) Type Composition, wt% C N Mn Si Cr Ni Mo SS 201 0.15 0.25 5.5–7.5 1.0 16–18 3.5–5.5 … SS 301 0.15 … 2.0 1.0 16–18 6.0–8.0 … SS...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220101
EISBN: 978-1-62708-259-4
...Abstract Abstract This chapter describes the phases and constituents present in iron-carbon steels in near-equilibrium conditions. It explains how to use phase diagrams to predict and manage the development of ferrite, austenite, cementite, and pearlite through controlled cooling. It discusses...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140157
EISBN: 978-1-62708-264-8
... effects unique to tool steels, including two-phase effects, austenite stabilization, and the conditioning of retained austenite. austenite carbides heat treatment mechanical properties tool steel ONE OF THE CHARACTERISTICS of our species, Homo sapiens , has been the use of tools. Because...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220193
EISBN: 978-1-62708-259-4
...Abstract Abstract Heat treatment is the most common way of altering the mechanical, physical, and even chemical properties of steels. This chapter describes the changes that occur in carbon and low-alloy steels during conventional heat treatments. It explains how austenite decomposition largely...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820043
EISBN: 978-1-62708-339-3
...Chemical compositions of standard austenitic stainless steels Table 1 Chemical compositions of standard austenitic stainless steels UNS No. Type/designation Composition (a) , % C Mn Si Cr Ni P S Other S20100 201 0.15 5.5–7.5 1.00 16.0–18.0 3.5–5.5 0.06 0.03 0.25...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310029
EISBN: 978-1-62708-326-3
... (a) Pearlite 11.916 Austenite 11.401 + 0.329 C (a) Martensite 11.789 + 0.370 C (a) (a) Carbon percent. Source: Ref 2 Definitions of critical transformation temperatures in steel Table 6 Definitions of critical transformation temperatures in steel Ae 1 The critical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410017
EISBN: 978-1-62708-265-5
... This chapter describes the iron-carbon phase diagram, its modification by alloying elements, and the effect of carbon on the chemistry and crystallography of austenite, ferrite, and cementite found in Fe-C alloys and steels. It also lays the groundwork for understanding important metallurgical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310001
EISBN: 978-1-62708-286-0
...Abstract Abstract Metallurgy, as discussed in this chapter, focuses on phases normally encountered in stainless steels and their characteristics. This chapter describes the thermodynamics and the three basic phases of stainless steels: ferrite, austenite, and martensite. Formation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430107
EISBN: 978-1-62708-253-2
...-ray diffraction, and x-ray photoelectron spectroscopy. It explains how the tools work and what they reveal. It also covers the topic of image analysis and its application in the measurement of grain size, phase/volume fraction, delta ferrite and retained austenite, inclusion rating, depth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560283
EISBN: 978-1-62708-291-4
... Fig. 10.15 (Part 1) Tempering of a 1% C hypereutectoid steel. 1.05C-0.24Si-0.25Mn (wt%). (a) Austenitized at 850 °C, water quenched, tempered at 500 °C for 1 h. 370 HV. Picral. 1000×. (b) Austenitized at 850 °C, water quenched, tempered at 500 °C for 48 h. 355 HV. Picral. 1000×. (c...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
...Austenitizing temperatures for direct hardening carbon and alloy steels Table 1 Austenitizing temperatures for direct hardening carbon and alloy steels Steel, AISI, SAE UNS number Temperature °C °F Carbon steels 1025 G10250 860–900 1575–1650 1026 G10260 860–885...