Preferential precipitation site of sigma phase in duplex stainless steel weld metal

Yutaka S. Sato, Hiroyuki Kokawa

研究成果: Article査読

116 被引用数 (Scopus)

抄録

The effects of crystallographic orientation relationship at ferrite/austenite (α/γ) interface on sigma phase formation in a duplex stainless steel weld metal were studied. Crystallographic orientations of ferrite and austenite grains in the base and weld metals were determined by electron backscattered diffraction and the crystallographic orientation maps were drawn by orientation imaging microscopy. Sigma phase formed at one side of the α/γ interfaces along intragranular austenite. The crystallographic orientations at ferrite/austenite interfaces where sigma phase forms deviated largely from the Kurdjumov-Sachs (K-S) orientation relationship. The minimum deviation angle for sigma phase formation decreased with increasing annealing time.

本文言語English
ページ(範囲)659-663
ページ数5
ジャーナルScripta Materialia
40
6
DOI
出版ステータスPublished - 1999 2 19

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 金属および合金

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