吴东江

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:中国科学院长春光学精密机械与物理研究所

学位:博士

所在单位:机械工程学院

学科:机械制造及其自动化

办公地点:机械学院大方楼5021

联系方式:djwudut@dlut.edu.cn 84707625

电子邮箱:djwudut@dlut.edu.cn

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Pulsed laser weldability of hastelloy C-276: Corrosion-resistant property

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论文类型:会议论文

发表时间:2012-09-23

收录刊物:EI、Scopus

页面范围:257-261

摘要:Based on the welding require of Hastelloy C-276 in the industry, the pulsed laser welding of 0.5 mm thickness Hastelloy C-276 was investigated, and the smooth weld joint with refined grain was obtained. Then, the defect in the weld joint was tested by the X-Ray flaw detection and micro-examination, and the corrosionresistant property of weld joint was evaluated via the strong acid and electrochemistry corrosion. By the XRay flaw detection, there were not obvious defects in the weld joint, and just two micro-pores were found during the micro-examination. In addition, the corrosion-resistant property of the weld joint in the strong acid corrosion was nearly the same as that of the base metal. The polarization curve in the weld joint, resulted from the electrochemistry corrosion test, was found a little difference from that of base metal. The results indicated, for the thin Hastelloy C-276 sheet, using the pulsed laser welding could obtain the well weld joint with little defect, and the corrosion-resistant property was impacted by the pulsed laser welding process.