Liquation Cracking Susceptibiltiy in the HAZ of High Nitrogen-Containing Austenitic Stainless Steel Welds(Materials, Metallurgy & Weldability)

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概要

• 論文の詳細を見る

• This study was performed to determine the influence of nitrogen additions on liquation cracking susceptibility in fully austenitic stainless steel SUS310 welds. The nitrogen content varied from 0.023 to 0.325mass%. Liquation cracking was investigated using bead-on plate welding, the Gleeble test, and the isothermal liquation test. According to the cracking test, it was found that the liquation cracking susceptibility decreased with increasing nitrogen addition. The Gleeble and the isothermal liquation tests revealed that the liquation crack was closely related to the intergranular liquation. In addition, as the nitrogen addition increased, the grain growth in HAZ decreased. The degree of intergranular liquation in the high nitrogen-containing specimen was less than that of the low nitrogen-containing specimen due to the grain growth reduction effect of nitrogen, which seems to be responsible for less liquation cracking susceptibility in HAZ of the high nitrogen-containing specimen welds.

• 大阪大学の論文

著者

• KIKUCHI Yasushi

  Osaka University

• Kikuchi Y

  Osaka Univ. Osaka Jpn

• WOO Insu

  Osaka University

• HORINOUCHI Tsutomu

  Osaka University

• HORINOUCHI Tutomu

  Osaka University

• Woo I

  Joining And Welding Research Institute Osaka University

• Horinouchi T

  Osaka University

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