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ASTM International - ASTM B875-96

Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process

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Organization: ASTM International
Publication Date: 10 June 1996
Status: inactive
Page Count: 3
ICS Code (Metallic coatings): 25.220.40
scope:

1.1 This specification covers the requirements for aluminum diffusion of metals by the pack cementation method. Pack diffusion employs the chemical vapor deposition of a metal which is subsequently diffused into the surface of a substrate at high temperature. The material to be coated (substrate) is immersed or suspended in a powder containing aluminum (source), a halide salt (activator), and an inert diluent such as alumina (filler). When the mixture is heated, the activator reacts to produce an atmosphere of aluminum halides which transfers aluminum to the substrate for subsequent diffusion. The aluminum-rich surface enhances corrosion, thermal stability, and wear-resistant properties.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

June 1, 2018
Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process
1.1 This specification covers the requirements for aluminum diffusion of metals by the pack cementation method. Pack diffusion employs the chemical vapor deposition of a metal which is subsequently...
December 1, 2013
Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process
1.1 This specification covers the requirements for aluminum diffusion of metals by the pack cementation method. Pack diffusion employs the chemical vapor deposition of a metal which is subsequently...
August 1, 2008
Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process
1.1 This specification covers the requirements for aluminum diffusion of metals by the pack cementation method. Pack diffusion employs the chemical vapor deposition of a metal which is subsequently...
September 10, 2003
Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process
1.1 This specification covers the requirements for aluminum diffusion of metals by the pack cementation method. Pack diffusion employs the chemical vapor deposition of a metal which is subsequently...
ASTM B875-96
June 10, 1996
Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process
1.1 This specification covers the requirements for aluminum diffusion of metals by the pack cementation method. Pack diffusion employs the chemical vapor deposition of a metal which is subsequently...
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