定量的に評価されたオーステナイトステンレン鋼溶接金属組織と靭性の関係

DOI Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • The Relationship between Quantitatively Evaluated Microstructure and Fracture Toughness on Austenitic Stainless Steel Weld Metal.
  • テイリョウテキ ニ ヒョウカサレタ オーステナイト ステンレス コウ ヨウセツ

この論文をさがす

抄録

The microstructures of stainless steel weld metals which had absorbed nitrogen were analyzed quantitatively by means of a computer-aided image analyzer. Then, the relationships between quantitative microstructural factors and the low-temperature fracture behaviors were investigated. Generally, the δ ferrite which is included in the stainless steel weld metal causes cleavage fracture at low temperatures and brings about a decrease in the fracture toughness property. There is much potential for improving the toughness by controlling the amount and shape of δ ferrite. The amount of δ ferrite decreased and its shape became more globular with increasing nitrogen content in weld metal. Consequently, cleavage fractures rarely occurred at low temperature, and the fracture toughness values were improved. The δ ferrite amount (A) and the shape factor ( S ) were combined into the factor of A·S. The A·S factor has a linear relationship with fracture toughness values.

収録刊行物

被引用文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ