高張力鋼溶接熱影響部における再熱割れの研究

• 渡辺 健彦

  金属材料技術研究所

• サベジ ワレン

  レンスラー工業大学

書誌事項

タイトル別名

• A Study of Reheat Cracking in Weld Heat-Affected Zone of High Strength Steel

抄録

A mechanism and some factors to cause a reheat cracking in HAZ of high strength steel weldment were examined and discussed, using a T-1 type of steel.<BR>The following results were obtained in this study.<BR>(1) The reheat cracking in HAZ can be induced by both a segregation of impurities and a precipitation of carbides of secondary hardening elements at grain boundaries. In particular, the effect of a grain boundary precipitation is predominant in case of T-1 type of steel HAZ.<BR>(2) It is likely that the influence of carbides precipitated at grain boundaries on the reheat cracking susceptibility appears through a decohesion at grain boundary and a lowering of a deformability or a ductility at grain boundary because of an intense interaction between dislocations and carbides.<BR>(3) The effects of a segregation of impurities and a precipitation of carbides at grain boundary on the reheat cracking phenomenon were able to be represented schematically.

収録刊行物

• 溶接学会論文集

  溶接学会論文集 1 (1), 37-44, 1983

  一般社団法人 溶接学会

キーワード

• Metals and Alloys
• Surfaces, Coatings and Films
• Mechanical Engineering
• Mechanics of Materials

詳細情報

• CRID: 1390001204722763520
• NII論文ID: 130003764348
• DOI: 10.2207/qjjws.1.37
• ISSN: 24348252
• ISSN: 02884771
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可