The engineering function of many PM parts may require an exterior portion of the part to have a hardened layer. Where case hardening produces a distinct transition in the microstructure, metallographic estimation of the observed case depth may be used to check the depth to which the surface has been hardened.
ASTM B931-14(2018)
Original price was: $48.00.$24.00Current price is: $24.00.
Standard Test Method for Metallographically Estimating the Observed Case Depth of Ferrous Powder Metallurgy (PM) Parts
ASTM International , 09/01/2014
Pages: 5
