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carburizing

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440279
EISBN: 978-1-62708-262-4
...Typical carburizing constants and boost/diffusion ratios needed to obtain a 0.80 to 0.90% surface carbon content in a low-alloy, low-carbon steel Table 1 Typical carburizing constants and boost/diffusion ratios needed to obtain a 0.80 to 0.90% surface carbon content in a low-alloy, low-carbon...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250163
EISBN: 978-1-62708-345-4
...Abstract Abstract Gas (atmosphere) carburizing is the de facto standard by which all other surface hardening techniques are measured and is the emphasis of this chapter. Initially, the chapter describes the process and equipment for gas carburizing. This is followed by sections discussing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320033
EISBN: 978-1-62708-347-8
...Abstract Abstract The primary objective of carburizing and hardening gears is to secure a hard case and a relatively soft but tough core. For this process, low-carbon steels (up to a maximum of approximately 0.30% carbon), either with or without alloying elements (nickel, chromium, manganese...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.9781627083379
EISBN: 978-1-62708-337-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560361
EISBN: 978-1-62708-291-4
... with depth in the quenched-and-tempered hypereutectoid steel shown in (a) to (d). (f) Completely ferritic surface layer in a commercial 1% C strip in the quench-hardened condition. 3% nital. 250×. Fig. 12.16 (Part 1) Case carburizing: quench-hardening heat treatments after carburizing. 0.15% C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080097
EISBN: 978-1-62708-304-1
...: 0.44C-0.69Mn-1.99Si-24.9Cr-20.8Ni-0.11Ti-0.29Nb-0.30W-REM. HP-45: 0.51C-0.54Mn-1.65Si-25.5Cr-36.1Ni. TMA-6350: 0.50C-0.70Mn-1.84Si-25.1Cr-38.4Ni-0.13Ti-0.28Nb-0.27WREM. REM denotes rare earth metals. Source: Ref 44 Results of pack carburization tests at 980 °C (1800 °F...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130177
EISBN: 978-1-62708-284-6
...Comparison of carburizing and carbonitriding processes Table 1 Comparison of carburizing and carbonitriding processes Process Comments Carburizing Hard, highly wear-resistant surface (medium case depths), excellent contact load potential, good bending fatigue strength, good seizure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240395
EISBN: 978-1-62708-251-8
...Abstract Abstract This chapter discusses the process characteristics, advantages, disadvantages, and applications of various processes involved in surface hardening of steel. These include pack carburizing, liquid carburizing, gas carburizing, vacuum carburizing, plasma carburizing, gas...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410499
EISBN: 978-1-62708-265-5
... Mechanical components often require surface treatments to meet application demands. This chapter describes several surface hardening treatments for steel and their effect on microstructure, composition, and properties. It discusses flame hardening, induction heating, carburizing, nitriding...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410551
EISBN: 978-1-62708-265-5
... This chapter describes surface modification processes that go beyond conventional heat treatments, including plasma nitriding, plasma carburizing, low-pressure carburizing, ion implantation, physical and chemical vapor deposition, salt bath coating, and transformation hardening via high-energy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440283
EISBN: 978-1-62708-262-4
... Abstract The results of certain heat treating processes must be verified for case quality and case depth by destructively sectioning a part or parts that were subjected to the process. Test coupons or test pins are often used for diffusion processes such as carburizing, carbonitriding, nitriding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220273
EISBN: 978-1-62708-259-4
... of the diffusion zone due to the precipitation of CrN (observed in TEM), notwithstanding the fact that the diffusion layer has been reduced, as shown in (a). Reprinted from Denki-Seiko, courtesy of Daido Steel, Japan. Source: Ref 47 Fig. 10.90 AISI 5120 steel carburized in controlled atmosphere at 920...
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
... carburized in endothermic gas with natural gas additions Table 1.2 Analysis of the surface material in SAE 8620 steel carburized in endothermic gas with natural gas additions Position Composition, % Cr Mo Ni Surface 0.79 0.18 0.55 Subsurface 0.52 0.14 0.57 Source: Ref 23...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770135
EISBN: 978-1-62708-337-9
... 810 895 325 0.825 33 745 108 840 925–940 400 0.875–0.925 35–37 800–910 116–132 870 880 405 1.0 40 840 122 900 915 410 0.825 33 880 128 Tests conducted on 637 M 17 (1.07%Ni-0.88%Cr) 7dp (diametral pitch) gears pack carburized at 900 °C for 7 h at a carbon potential...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770171
EISBN: 978-1-62708-337-9
... quenching Table 7.14 Effect of subzero cooling after quenching Heat treatment after carburizing Condition Retained austenite, % Hardness, HRC Bending strength Impact MPa kg/mm 2 MPa kg/mm 2 Oil quenched from 800 °C, low-temperature tempered As-quenched 62 54 1530 156 25.5...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140189
EISBN: 978-1-62708-264-8
... into the outer surface layers. It discusses several such surface-hardening processes, including carburizing, nitriding, carbonitriding, and nitrocarburizing. carbonitriding carburizing nitriding nitrocarburizing steels surface hardening THERE ARE MANY APPLICATIONS where a very hard surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440001
EISBN: 978-1-62708-262-4
...Abstract Abstract This chapter introduces the principal heat treating processes, namely normalizing, annealing, stress relieving, surface hardening, quenching, and tempering. An overview of four of the more popular surface hardening treatments, namely carburizing, carbonitriding, nitriding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440141
EISBN: 978-1-62708-262-4
...Typical characteristics of case hardening treatments Table 1 Typical characteristics of case hardening treatments Process Nature of case Process temperature, °C (°F) Typical case depth Case hardness, HRC Carburizing Pack Diffused carbon 815–1090 (1500–2000) 125 μm–1.5 mm...
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
... 850 90 57 39 4 0.99 1.24 1.21 0.23 35 C la , carbon content in carburized layer; A ks , amount of carbide annealed structures; t q , quenching temperature; K d , amount of dissolved carbides; N, number of cycles to appearance of contact fatigue dimples. The nickel content in the solid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770001
EISBN: 978-1-62708-337-9
...Abstract Abstract This chapter provides a brief but practical overview of the case carburizing process. It discusses the benefits and challenges of the process and compares and contrasts it with other hardening methods. It explains how design allowables and safety factors compensate...