ASTM B875 - 96(2018) - Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process

ASTM B875 - 96(2018)

Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process

Status : Current   Published : June 2018

Format
PDF

Format
HARDCOPY



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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.3  This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.




Standard NumberASTM B875 - 96(2018)
TitleStandard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process
StatusCurrent
Publication Date01 June 2018
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Aluminizing, corrosion-resistant coatings, diffusion coating, pack cementation
ICS25.220.40
PublisherASTM
FormatA4
DeliveryYes
Pages3
File Size72 KB
Price£36.00


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