Creep deformation and local strain distributions in dissimilar metal vvelds betvveen AISI type 316 and 2–25Cr–1 Mo steels made vvith 17Cr–8Ni–2Mo weld metal

Authors: Chilton, I. J.; Price, A. T.; Wilshire, B.

Source: Metals Technology, Volume 11, 1984 , pp. 383-391(9)

Buy & download fulltext article:

Price: $15.00 plus tax (Refund Policy)

Abstract:

Austenitic-ferritic steel transition joints made with austenitic weld metal fail prematurely during service, because of the formation of intergranular cracks in the heat-affected zone (HAZ) of the ferritic steel at a distance of ∼ 75–150 Uml;m from the fusion boundary. This characteristic failure mode has been reproduced under uniaxial creep conditions by testing cross-weld specimens at temperatures between 838 and 923 K and at low stresses. Creep tests at high stress result in an entirely different fracture mode, with a more ductile failure occurring well outside the HAZ. The strains associated with these two modes have been examined using a microgrid technique and the failures are shown to be explicable in the terms of the differences in creep properties between the weld HAZ and the 2·25Cr-1 Mo ferritic steel plate.

Document Type: Research Article

Publication date: 1984-01-01

More about this publication?

In 1985 Metals Technology was incorporated into Materials Science and Technology: click here to see issues of Materials Science and Technology from 1985 to the present. The archive also includes the complete run of Metal Science (1967—84):click here to see these issues.
Terms & Conditions
ingentaconnect is not responsible for the content or availability of external websites