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retained austenite

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Published: 01 October 2014
Fig. 7 Retained austenite, measured by x-ray diffraction, as a function of distance from the surface of an 8620 steel carburized at 925 °C (1700 °F). The single and double reheats were accomplished by heating to 845 and 790 °C (1550 and 1450 °F), respectively. Source: Ref 18 More
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Published: 01 October 2014
Fig. 17 High retained austenite content in corner of SAE 4121 steel (formerly EX24) specimen carburized at 1050 °C (1920 °F). Source: Ref 44 More
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Published: 09 June 2014
Fig. 13 Residual stress, carbon, nitrogen, and retained austenite profiles through a carbonitrided case on 1118 steel. Source: Ref 34 More
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Published: 09 June 2014
Fig. 50 Retained austenite profiles below the surface of the tooth root. VC, vacuum carburizing; DSP, double shot peening; CIH, contour induction hardening. Source: Ref 48 More
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Published: 30 September 2015
Fig. 3 Effect of austenitizing temperature on the amount of retained austenite after quenching of M2 with 0.80 to 0.91% C More
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Published: 30 September 2015
Fig. 15 Transformation of retained austenite in the steel from Fig. 13 and 14 during tempering. Adapted from Ref 62 More
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Published: 01 August 2013
Fig. 6 Transformation of retained austenite in 4130 and 4340 steel More
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Published: 01 August 2013
Fig. 19 Case microstructure of plate martensite and ∼30% retained austenite (by x-ray diffraction). Nital etch. Original magnification: 500× More
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Published: 01 August 2013
Fig. 20 Case microstructure of plate martensite and ∼15% retained austenite (by x-ray diffraction). Grade 8620. Nital etch. Original magnification: 500× More
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Published: 01 August 2013
Fig. 27 Effect of carbon concentration in solution on retained austenite in SAE 4122 steel directly quenched in oil. (a) 1.2 wt% surface carbon (65% retained austenite). (b) 1 wt% surface carbon (50% retained austenite). (c) 0.75 wt% surface carbon (30% retained austenite) More
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Published: 01 August 2013
Fig. 28 Effect of part temperature prior to direct quenching on retained austenite in SAE 4122 steel. (a) 950 °C (1740 °F). (b) 925 °C (1700 °F). (c) 900 °C (1650°F). All samples contain no. 9 wt% C and 43 to 46% retained austenite. More
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Published: 01 August 2013
Fig. 29 Effect of cooling rate on retained austenite in SAE 4122 after carburizing and quenching in (a) water (29% retained austenite) and (b) oil (35% retained austenite) More
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Published: 01 August 2013
Fig. 30 Relationship between carbon gradient, retained austenite, and residual stress produced in carburized and hardened steels. (a) SAE 8620. (b) SAE 1118. Source: Ref 58 More
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Published: 01 August 2013
Fig. 12 Carburizing strategy resulting in unwanted formation of retained austenite. Carburizing temperature is 940 °C (1725 °F); material is 18CrNi8. More
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Published: 01 August 2013
Fig. 18 Retained austenite in 1018 steel carbonitrided at three different temperatures. Bar 28.5 mm (1 1 8 in.) in diameter quenched in 55 °C (130 °F) oil. See also Table 3 . Source: Ref 16 More
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Published: 01 August 2013
Fig. 19 Effect of low-temperature hold on retained austenite in carbonitrided 8617 steel bar. (a) Carbonitrided 4 h at 845 °C (1550 °F) in 8% ammonia, 8% propane, and remainder endothermic gas. Oil quenched and tempered 1.5 h at 150 °C (300 °F). Structure is tempered martensite (dark More
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Published: 01 October 2014
Fig. 8 Variation in retained austenite as a function of carbon content for 3% Ni-Cr steel. Source: Ref 9 More
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Published: 01 October 2014
Fig. 9 Retained austenite distribution and associated residual-stress distribution in a carburized 8620-grade steel sample. Source: Ref 9 More
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Published: 01 October 2014
Fig. 18 Effect of tempering temperature on hardness and retained austenite of Type 440C hardened at 1065 °C (1950 °F), oil uenched at 55 °C (130 °F), and subzero cooled at −85 °C (−120 °F) More
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Published: 01 October 2014
Fig. 5 Retained austenite content and hardness after quenching M2 steel to 105 °C (225 °F) and tempering at 565 °C (1050 °F) More