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gas carburizing

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Published: 01 August 1999
Fig. 12.25 (Part 1) Case carburizing: gas carburizing in an atmosphere of low carbon potential. 0.15% C (0.17C-0.05Si-0.64Mn, wt%). (a) and (b) Gas carburized at 900 °C for 45 min in sealed-quench furnace, oil quenched, tempered at 150 °C. Normalized from 850 °C after carburizing More
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Published: 01 August 1999
Fig. 12.25 (Part 2) Case, carburizing: gas carburizing in an atmosphere of low carbon potential. 0.15% C (0.17C-0.05Si-0.64Mn, wt%). (a) and (b) Gas carburized at 900 °C for 45 min in sealed-quench furnace, oil quenched, tempered at 150 °C. Normalized from 850 °C after carburizing More
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Published: 01 August 1999
Fig. 12.26 (Part 1) Case carburizing: gas carburizing in an atmosphere of high carbon potential. 0.15% C (0.17C-0.05Si-0.64Mn, wt%). (a) to (c) Gas carburized at 900 °C for 45 min in sealed-quench furnace with excessive gas enrichment, oil quenched. Direct from carburizing furnace More
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Published: 01 August 1999
Fig. 12.26 (Part 2) Case carburizing: gas carburizing in an atmosphere of high carbon potential. 0.15% C (0.17C-0.05Si-0.64Mn, wt%). (a) to (c) Gas carburized at 900 °C for 45 min in sealed-quench furnace with excessive gas enrichment, oil quenched. Direct from carburizing furnace More
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Published: 01 August 1999
Fig. 12.27 (Part 1) Case carburizing: gas carburizing in an ammonia-containing atmosphere. 0.15% C (0.17C-0.05Si-0.64Mn, wt%). (a) and (b) Gas carburized at 880 °C for 3.25 h; 5% ammonia added during last hour, sealed quench in oil. Direct from carburizing furnace; tempered at 150 °C More
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Published: 01 August 1999
Fig. 12.27 (Part 2) Case carburizing: gas carburizing in an ammonia-containing atmosphere. 0.15% C (0.17C-0.05Si-0.64Mn, wt%). (a) and (b) Gas carburized at 880 °C for 3.25 h; 5% ammonia added during last hour, sealed quench in oil. Direct from carburizing furnace; tempered at 150 °C More
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Published: 01 June 2008
Fig. 21.3 Effect of time and temperature on case depth during gas carburizing. Source: Ref 1 More
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Published: 01 June 2008
Fig. 21.4 Effect of temperature on time during gas carburizing. Source: Ref 1 More
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Published: 01 January 2015
Fig. 22.2 (a) Plasma-carburized 8719 steel. (b) Gas-carburized 8719 steel. Both specimens nickel plated and unetched. Light micrographs. Source: Ref 22.22 More
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Published: 01 September 2008
Fig. 8 Carbon gradients for gas-carburized 1020 and 8620 steels. The 1020 steel was carburized in a batch furnace, and the 8620 was carburized in a pit furnace. More
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Published: 01 September 2008
Fig. 19 Fatigue limits of plasma- and gas-carburized test specimens as a function of retained austenite content More
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Published: 01 September 2008
Fig. 26 Residual-stress profiles of SCM420 steel that was gas carburized at 930 °C, oil quenched, and tempered at 200 °C More
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Published: 01 January 2015
Fig. 21.22 Surface oxidation in a gas carburized 8627 steel containing 0.92% Mn, 0.27% Si, 0.51%Cr, 0.22% Mo, and 0.52% Ni. Aspolished, Ni-plated surface (for edge retention), light micrograph. Source: Ref 21.42 More
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Published: 01 January 2015
Fig. 21.28 Stress versus cycles to failure for gas-carburized 8620 and 4615 steels. Source: Ref 21.52 More
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Published: 01 January 2015
Fig. 21.29 Residual stress profiles for gas-carburized 8620 and 4615 steels. Source: Ref 21.52 More
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Published: 01 November 2013
Fig. 22 9310 steel, gas carburized microstructures 4 h at 925–940 °C (1700–1725 °F), furnace cooled, austenitized at 815–830 °C (1500–1525 °F), oil quenched and tempered 4 h at 150 °C (300 °F). Source: Ref 12 More
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Published: 01 December 1999
Fig. 4.16 Fatigue limits of plasma and gas-carburized specimens as a function of retained austenite content. More
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Published: 01 December 1999
Fig. 5.14 Fatigue limits of plasma and gas-carburized specimens as a function of austenitic grain size. A, retained austenite. Source: Ref 23 More
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Published: 01 September 2005
Fig. 8 Fatigue fracture in gas-carburized and modified 4320 steel. (a) Overview of initiation, stable crack propagation, and unstable crack propagation. (b) Same area as shown in (a), but with extent of stable crack indicated by dashed line. (c) Higher magnification of intergranular initiation More
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Published: 01 September 2005
Fig. 9 Hardness vs. distance from the surface of direct-cooled gas-carburized SAE 4320 steel. Superimposed on the hardness profile is the range of critical depths (vertical dashed band) at which stable fatigue cracks became unstable in bending fatigue of similarly processed steels. Source More