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Salt baths

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Published: 01 November 2007
Fig. 15.3 Comparison of different neutral salt baths for HW, HT, and Fe-Cr alloys at 870 °C (1600 °F) for 60 h. Source: Ref 6 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900053
EISBN: 978-1-62708-350-8
... Abstract This chapter presents the salts used and the process advantages of salt bath nitriding. It describes bath testing and analysis including the materials and equipment, analysis procedure, and determination of sodium carbonate and sodium cyanate for titration testing of the nitriding salt...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900201
EISBN: 978-1-62708-350-8
... Abstract This chapter provides a detailed discussion of salt bath nitrocarburizing. Process variations discussed include low-cyanide salt bath ferritic nitrocarburizing, salt bath nitrocarburizing plus post treatment, and the Kolene Nu-Tride process. salt bath ferritic nitrocarburizing...
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Published: 01 January 2015
Fig. 22.13 (a) NbC coating deposited on a martensitic stainless steel by a salt bath process. (b) Chromium carbonitride coating deposited on nitrided AISI 1045 steel by a salt bath process. Light micrographs. Courtesy of T. Arai, Toyota Research Laboratories More
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Published: 01 March 2006
Fig. 7 Principal types of salt bath furnaces. Types (a) and (b) also can be used for lead baths. Source: Ref 5 More
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Published: 01 December 2003
Fig. 1 Principal furnace types for liquid salt bath nitriding. (a) and (b) Externally heated. (c) and (d) Internally heated, with immersed alloy electrodes and metal liner or submerged electrodes with ceramic tile lining More
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Published: 01 December 2003
Fig. 2 Ferritic nodular iron, salt bath nitrided 90 min at 580 °C (1075 °F), oxidizing molten salt quenched. 500×, nital etch. Courtesy of Kolene Corp. More
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Published: 01 December 2003
Fig. 3 SAE 5115 (UNS G51150), chromium-manganese low-carbon steel, salt bath nitrided 90 min at 580 °C (1075 °F), oxidizing molten salt quenched. 500×, nital etch. Courtesy of Kolene Corp. More
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Published: 01 December 2003
Fig. 1 Various trade names for gaseous, salt bath, and ion (plasma) ferritic nitrocarburizing processes. Fluidized-bed procedures also are available. More
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Published: 01 December 2003
Fig. 19 Microstructures of various ferritic materials that have undergone salt bath nitrocarburizing. All etched in 3% nital. All 500×. Courtesy of Kolene Corp. (a) Ferritic nodular iron; 90 min at 580 °C (1075 °F), oxidizing molten salt quench. (b) Low-carbon steel; 90 min at 580 °C (1075 °F More
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Published: 01 December 2003
Fig. 20 Frictional properties for various surface treatments. SBQ, salt bath quenching. Source: Ref 10 More
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Published: 01 December 2003
Fig. 1 Internally heated salt bath furnace with immersed alloy electrodes and ceramic tile lining More
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Published: 01 December 2003
Fig. 2 Internally heated salt bath furnace with submerged graphite electrodes and a modified brick lining for use with carburizing salts More
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Published: 01 December 2003
Fig. 1 Precleaning methods for gas and salt bath ferritic nitrocarburizing More
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Published: 01 January 1998
Fig. 6-1 Internally heated salt bath furnace with immersed electrodes and ceramic tiles More
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Published: 01 January 1998
Fig. 6-2 Internally heated salt bath furnace with submerged electrodes. This furnace has a modified brick lining for use with carburizing salts. More
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Published: 01 January 1998
Fig. 6-3 Process designs for automated salt bath furnaces for heat treating of high-speed tool steels. Installations can be custom designed to meet specific customer requests. (a) Does not include a wash and rinse operation. (b) Similar to (a) but includes a wash and rinse operation More
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Published: 01 November 2007
Fig. 15.4 Results of a field rack test in a NaCl-KCl-BaCl 2 salt bath at 840 °C (1550 °F) for 1 month. Source: Ref 7 More
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Published: 01 November 2007
Fig. 15.10 Corrosion of Ni-Cr-Fe-Mo alloy in a molten CaCl 2 -NaCl salt bath at 570 °C (1050 °F) for 6 months. (a) Little corrosion at the area not cold worked (away from the sheared edge). (b) Intergranular attack at the cold worked area (specimen sheared edge). Source: Ref 14 More
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Published: 01 November 2011
Fig. 7.8 Principal types of furnaces used for molten-salt-bath dip brazing applications: (a) and (b) externally heated; (c) and (d) internally heated. Source: Ref 7.8 More