フェライト系ステンレス鋼SUS430溶接金属の微細粒組織形成

• 山下 正太郎

  広島大学

• 篠崎 賢二

  広島大学

• 山本 元道

  広島大学

• 門井 浩太

  広島大学

書誌事項

タイトル別名

• Effect of Heating Rate on Grain Refinement in Weld Metal of Type 430 Stainless Steel
• －ホットワイヤTIG溶接法による溶接金属組織の微細化技術の開発－
• - Grain Refinement in Weld Metal by Hot-wire GTAW Process -

抄録

The aim of this study was to investigate the influence of power supply distance on the grain refining in weld metal of type 430 stainless steel. The fine grain formed conjunction with filler wire according to microstructure obtained by water quenching method. From the result, local melting occurred in filler wire before fine grain. The fine grains formed at the lower part of the weld metal when the wire current was low. On the other hands, the fine grain formed at the upper part when the wire current was high. The amount of the fine grain increased with increasing the wire current. Moreover, the area ratio of fine grain in weld metal increased with decreasing the power supply distance and the size of fine grain formed with each power supply distance in weld metal increased with increasing the power supply distance.<br> The effect of power supply distance on microstructure evolution in filler wire was investigated to obtain during heating of wire. Recrystallization and grain growth was observed in the heated wire. The grain size decreased with decreasing the power supply distance, because heating rate of wire increased with decreasing the power supply distance.

収録刊行物

• 溶接学会論文集

  溶接学会論文集 35 (1), 51-56, 2017

  一般社団法人 溶接学会

キーワード

• Grain refinement
• Hot-wire process
• GTAW
• Ferritic stainless steel

詳細情報

• CRID: 1390001204726490624
• NII論文ID: 130005465237
• DOI: 10.2207/qjjws.35.51
• ISSN: 24348252
• ISSN: 02884771
• Web Site: https://www.jstage.jst.go.jp/article/qjjws/35/1/35_51/_pdf
• 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