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vapor phase nitriding

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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 2001
DOI: 10.31399/asm.tb.secwr.9781627083157
EISBN: 978-1-62708-315-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... the quenchant and maintain the vapor phase. The highest cooling rates occur during the nucleate boiling stage. During this period, the vapor envelope collapses, and high heat extraction rates are achieved that are associated with nucleate boiling of the quenchant on the metal surface. Heat is rapidly removed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... Yes >RT >RT 10 –8 –1.3 10 –7 –10 <1–10 Yes No Thermal diffusion 51–3800 2–150 49–71 (C, N) Average to good No 480–1040 900–1900 40–>100 300–>760 10–100 No, except for C Reheat treatment Ion nitriding 51–640 2–25 60–72 Average, poor on stainless steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230117
EISBN: 978-1-62708-298-3
..., although temperatures above 950 °C (1740 °F) are required for complete dehydration to the oxide. There is evidence that beryllium hydroxide exists in the vapor phase above 1200 °C (2190 °F) [ Young 1960 ]. Water vapor reacts with BeO to form beryllium hydroxide vapor, which has a partial pressure of 73 Pa...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... TiCl 4 -BCl 3 -H 2 1470–1830 WB WCl 6 -BBi 3 -H 2 2550–2900 Fig. 21.18 CVI residual porosity Fig. 21.16 Chemical vapor infiltration reactor Fig. 21.17 Chemical vapor infiltration (CVI) equipment Fig. 21.19 Directed metal oxidation process. Aluminum (Al...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550569
EISBN: 978-1-62708-307-2
... prior to processing, usually by chemical vapor deposition (CVD). The CVD produces coatings of relatively uniform thickness, composition, and structure, even with preforms of complex fiber architecture. Carbon and boron nitride (BN) are typical coatings, used either alone or in combination with each...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290009
EISBN: 978-1-62708-319-5
..., reaction, reduction, oxidation, carburization, nitridation, hydrogenation, and related composition changes. The powders include pure elements such as copper, molybdenum, and tungsten and compounds such as TiO 2 , WC, Si 3 N 4 , and TiB 2 . Phase change: Particle production routes based on phase change...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500317
EISBN: 978-1-62708-317-1
... hardening, case (surface) hardening, and nitriding as well as hard chrome plating, vapor deposition, and thermal diffusion coating. It explains how to measure wear resistance using various tests and provides guidelines for selecting tool materials, treatments, and coatings. chemical vapor deposition...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550511
EISBN: 978-1-62708-307-2
... for flaws. This chapter describes the applications, properties, and behaviors of some of the more widely used structural ceramics, including alumina, aluminum titanate, silicon carbide, silicon nitride, zirconia, zirconia-toughened alumina (ZTA), magnesia-partially stabilized zirconia (Mg-PSZ), and yttria...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290169
EISBN: 978-1-62708-319-5
.../A:1018613316157 2. German R.M. , Suri P. , and Park S.J. , Review: Liquid Phase Sintering , J. Mater. Sci. , Vol 44 , 2009 , p 1 – 39 10.1007/s10853-008-3008-0 3. Komeya K. and Inoue H. , Sintering of Aluminum Nitride: Particle Size Dependence of Sintering Kinetics , J...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230485
EISBN: 978-1-62708-298-3
..., Part V: In Moist Carbon Dioxide and Moist Carbon Monoxide , J. Nucl. Mater. , Vol 4 , p 46 – 58 Gulbransen E.A. , and Andrew K.F. , 1950a . The Kinetics of the Reaction of Beryllium with Oxygen and Nitrogen and the Effect of Oxide and Nitride Films on its Vapor Pressure , J...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
... Boriding, or Boronizing Multicomponent Coatings Chemical vapor deposition (CVD) involves the deposition of a solid on a heated surface by a chemical reaction from the vapor or gas phase. In general, three processing steps are involved in any CVD reaction: the production of a volatile carrier...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500107
EISBN: 978-1-62708-317-1
...Abstract Abstract This chapter discusses the forming characteristics of dual-phase (DP) and transformation-induced plasticity (TRIP) steels. It begins with a review of the mechanical behavior of advanced high-strength steels (AHSS) and how they respond to stress-strain conditions associated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700177
EISBN: 978-1-62708-279-2
... and lower the shear forces that lead to wear. They are applied onto the tool substrate in micron-level thicknesses. Coating processes include thermal diffusion (TD), chemical vapor deposition (CVD), physical vapor deposition (PVD), plasma-assisted chemical vapor deposition (PACVD), and nitriding plus...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420015
EISBN: 978-1-62708-310-2
.... Fig. 2.1 The distribution of atoms in solid, liquid, and vapor phases of alloys. (a) Two solid solutions formed in a 50% Fe-50% Cu alloy. (b) Liquid phase formed by 50% Fe-%50 Cu alloy. (c) Two liquid phases formed in a 50% Zn-50% Pb alloy. (d) Vapor phase formed by a 50% Zn-50% Pb alloy. Adapted...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
...Abstract Abstract This chapter discusses the types, methods, and advantages of heat treating procedures, including annealing, normalizing, tempering, and case hardening. It describes the iron-carbon system, the formation of equilibrium and metastable phases, and the effect of alloy elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240395
EISBN: 978-1-62708-251-8
... and tempered before nitriding. A third process, called carbonitriding, which is similar to carburizing, diffuses both carbon and nitrogen atoms into the surface. Carburizing is conducted by heating a low-carbon steel into the single-phase austenitic field, generally between 845 and 955 °C (1550 and 1750 °F...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170003
EISBN: 978-1-62708-297-6
... of aluminum is only 660 °C (1220 °F). If the temperature of the molten aluminum is raised to that of molten silicon, much of the aluminum could be lost to oxidation and vaporization. However, examination of the aluminum-silicon binary phase diagram shows that a low-melting eutectic (577 °C, or 1071 °F...