✦ LIBER ✦

Strength—toughness relationship for austenitic stainless steel welds at 4 K

✍ Scribed by R.L. Tobler; T.A. Siewert; H.I. McHenry

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 349 KB
Volume: 26
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(86)90082-2

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✦ Synopsis

Cryogenic mechanical property data compiled at the National Bureau of Standards, USA, have been used to analyse the relationship between yield strength and fracture toughness for austenitic stainless steel welds at 4 K. This study demonstrates that there is an inverse linear correlation between yield strength and fracture toughness for the stainless steel welds at 4 K, and that the welds have significantly lower toughness than base materials of comparable strength.

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A prediclive equation Ior energy absorbecl by Charpy tmpal;I al 4 2 K for weld metals (.)t auslenlllC stainless steels IS proposed on the I-)asis ol a mulhple regression analysts ol P, xpertmenlal data. The equalion =s vE = 90.6 -4 56 (FN) -44.2 (%C) -824 (%0) where vE Is absorbed energy al 4.2 K (J