A comparative study of Inconel 718 formed by High Deposition Rate Laser Metal Deposition with GA powder and PREP powder
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- 作者：Chongliang Zhonga ; b ; chongliang.zhong@gmail.com" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Jing ChencAuthor Vitae ; Stefanie Linnenbrinkb ; Andres GasserbAuthor Vitae ; Shang Suic ; Reinhart Poprawea ; bAuthor Vitae
- 关键词：High deposition-rate LMD ; Inconel 718 (IN718) ; Gas atomized (GA) ; Plasma Rotating Electrode Process (PREP) ; Metallurgical properties ; Material microstructures
- 刊名：Materials & Design
- 出版年：2016
- 出版时间：5 October 2016
- 年：2016
- 卷：107
- 期：Complete
- 页码：386-392
- 全文大小：1667 K
文摘
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Powder characteristics have significant effect on porosity in HDR-LMD of IN718;
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Comparing to Plasma-rotating Electrode Process (PREP) powder, IN718 formed by Gas Atomization (GA) powder has higher porosity;
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The microstructure of IN718 formed by PERP powder has larger dendrite arm spacing, higher Nb segregation and higher Laves phase fraction.