NOTCH TOUGHNESS AND RETAINED AUSTENITE IN SYNTHETIC HAZ OF 9% Ni STEEL.

Hiroshi Tamura, Tadao Onzawa, Susumu Uematsu

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Abstract

There was a fairly good correlation between the amount of retained austenite and toughness. However, when grains were coarsened by the primary thermal cycle, toughness was no longer improved unless the secondary thermal cycle was above 800 degree C. This secondary thermal cycle resulted in grain refinement and the formation of an enriched zone of alloying elements where stable austenite precipitated in a third thermal cycle, mainly, at prior austenite grain boundaries.

Original languageEnglish
Pages (from-to)51-58
Number of pages8
JournalTransactions of the Japan Welding Society
Volume13
Issue number1
Publication statusPublished - 1982 Jan 1
Externally publishedYes

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ASJC Scopus subject areas

  • Engineering(all)

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