ASTM B931-2014 Standard Test Method for Metallographically Estimating the Observed Case Depth of Ferrous Powder Metallurgy (PM) Parts
ASTM B931-2014 标准详情
- 标准号：ASTM B931-2014
- 中文标题：Standard Test Method for Metallographically Estimating the Observed Case Depth of Ferrous Powder Metallurgy (PM) Parts
- 英文标题：Standard Test Method for Metallographically Estimating the Observed Case Depth of Ferrous Powder Metallurgy (PM) Parts
- 标准类别：美国材料与试验协会ASTM
- 发布日期：09 January 2014
内容简介
Scope 1.1 A metallographic method is described for estimating the observed case depth of ferrous powder metallurgy (PM) parts. This method may be used for all types of hardened cases where there is a discernible difference between the microstr
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