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austempering

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560235
EISBN: 978-1-62708-353-9
... annealing Used to produce material in soft condition Heating to austenite, then cooling slowly (e.g., in a furnace, taking several hours) Box annealing is full annealing in a special enclosure Mechanical properties of a steel which was austempered and which was conventionally quenched...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320195
EISBN: 978-1-62708-332-4
... Abstract Unlike conventional quench and temper heat treatment, austempering is an iron and steel heat-treatment process that enhances mechanical properties through the isothermal transformation of austenite with a minimum amount of quenching stresses. This chapter begins with a discussion...
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Published: 01 March 2006
Fig. 11 Effect of austempering temperature on properties of ductile iron. (a) Yield strength and tensile strength vs. austempering temperature. (b) Impact strength vs. austempering temperature. Source: Ref 8 , 9 More
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Published: 01 August 2018
Fig. 10.80 Austempering is an isothermal heat treatment resulting most times in bainitic structures. After austempering, tempering is not required. B = bainite, M = martensite, F = ferrite, P = pearlite, A = austenite. More
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Published: 01 August 2018
Fig. 15.10 Austenite volume fraction f γ as a function of austempering holding time. The solid line represents the values of the austenite volume fraction at 230 °C (445 °F) determined through dilatometry. The circles represent the values of the volume fraction of austenite at room More
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Published: 01 August 2018
Fig. 15.11 Carbon content of the retained austenite as a function of the austempering holding time, determined using x-ray diffraction measurements. Source: Ref 2 More
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Published: 01 August 2018
Fig. 17.87 (a) Effect of austempering temperature on the tensile properties of a ductile cast iron. Source: Ref 46 . TS: tensile strength, YS: yield strength, E: elongation. (b) Examples of austempering cycles used with ductile iron to achieve different combinations of properties. The grades More
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Published: 01 March 2012
Fig. 15.27 Typical austempering heat treatment. Source: Ref 15.2 More
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Published: 01 November 2013
Fig. 19 Typical austempering heat treatment. Source: Ref 1 More
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Published: 31 December 2020
Fig. 13 Austempering process for cast irons More
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Published: 31 December 2020
Fig. 14 Effect of austempering temperature on yield strength of ductile cast iron. Courtesy J. Keough, Applied Process Inc. Source: Ref 3 More
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Published: 01 June 2008
Fig. 11.26 Typical austempering heat treatment More
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Published: 01 October 2011
Fig. 10.21 Austempering process for cast irons. Source: Ref 10.2 More
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Published: 01 December 1996
Fig. 7-20 Schematic isothermal TTT diagram showing the heat treatment of austempering. (From J.R. Keough, W.J. Laird, Jr., and A.D. Gooding, Metals Handbook , Vol 4, p 152, Hear Treating , American Society for Materials, Materials Park, Ohio (1991), Ref 7 ) More
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Published: 01 January 2022
Fig. 10.3 Alloying combinations and maximum bar sizes for pearlite-free austempering. Source: Ref 2 More
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Published: 01 January 2022
Fig. 10.4 Austempering cycle. Source: Ref 2 More
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Published: 01 January 2022
Fig. 10.5 (a–d) Austempering stages, phases, and microstructures. Source: Ref 2 . Courtesy of Dr. R.A. Harding, Kovove Materialy, 2007 More
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Published: 01 January 2022
Fig. 10.7 Relationships among austempering temperature, tensile strength, and elongation More
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Published: 01 January 2022
Fig. 10.8 Changes in tensile strength, yield, and elongation with austempering temperature. Source: Ref 2 More
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Published: 01 January 2022
Fig. 10.9 Relationships among retained austenite, austempering time, and temperature. Source: Ref 2 . Courtesy of Dr. R.A. Harding, Kovove Materialy More