Scanning Auger electron spectroscopy has been used to examine the distribution of impurity elements on the fracture surface of W-Ni-Fe alloys. High temperature heat treatment (1350 degree C) followed by water quenching reduces phosphorus segregation and improves the degree of cohesion across boundaries. Segregated sulfur is less uniformly distributed and its segregation level increases in heat treated specimens. Copper also segregates during heat treatment of W-Ni-Cu specimens; no segregation of iron was observed in the W-Ni-Fe system.
|Number of pages||11|
|Journal||Metallurgical Transactions A - Physical Metallurgy and Materials Science|
|Publication status||Published - 1 Jan 1983|