Accession Number : AD0706561

Title :   METALLOGRAPHIC OBSERVATIONS ON THE FORMATION AND OCCURRENCE OF FERRITE, SIGMA PHASE, AND CARBIDES IN AUSTENITIC STAINLESS STEELS. PART II. STUDIES OF AISI TYPE 316 STAINLESS STEEL,

Corporate Author : SASKATCHEWAN UNIV SASKATOON COLL OF ENGINEERING

Personal Author(s) : White,W. E. ; Le May,I.

Report Date : 23 SEP 1969

Pagination or Media Count : 11

Abstract : The precipitation effects occurring in a commercial AISI Type 316 steel in the temperature range 600 to 850C were studied for times up to 900 hours by means of optical metallographic techniques. Carbide precipitation along grain boundaries precedes the formation of ferrite and sigma phase, and growth of the latter precipitates appears to depend on re-solution of the carbides. Sigma appears to form directly from the austenite and not from the ferrite formed at shorter times. (Author)

Descriptors :   (*STAINLESS STEEL, GRAIN STRUCTURES(METALLURGY)), FERRITES, PHASE STUDIES, CARBIDES, MICROSTRUCTURE, CANADA

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE