Susceptibility to hot cracking and weldment heat treatment of haynes 230 superalloy

C. M. Cheng*, C. P. Chou, I. K. Lee, I. C. Kuo

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

11 引文 斯高帕斯(Scopus)

摘要

This study investigates the susceptibility of hot cracking and weldment heat treatment of Haynes 230 superalloy. The Varestriant test was conducted to evaluate this susceptibility. Welding was performed by gas tungsten arc welding (GTAW) and plasma arc welding (PAW) with stress relief heat treatment and solid solution heat treatment. A tensile test is then performed to measure the changes in the mechanical properties of the heat-treated material. The results indicate that the number of thermal cycles does not affect the susceptibility of Haynes 230 superalloy to hot cracking. However, it does increase the strain. In weldment of heat treatment, stress relief annealing increases the yield strength and tensile strength of the welded parts. The section of the tensile specimens shows fibrous fractures on the welded parts, regardless of whether they are heat-treated.

原文英語
頁(從 - 到)685-690
頁數6
期刊Journal of Materials Science and Technology
22
發行號5
出版狀態已發佈 - 2006 九月 1

ASJC Scopus subject areas

  • 陶瓷和複合材料
  • 材料力學
  • 機械工業
  • 聚合物和塑料
  • 金屬和合金
  • 材料化學

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