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HAZ Liquation Cracking Mechanism of IN-738LC Superalloy Prepared by Laser Solid Forming
外文标题:HAZ Liquation Cracking Mechanism of IN-738LC Superalloy Prepared by Laser Solid Forming
文献类型:期刊
作者:Xu, Jianjun[1]  Lin, Xin[2]  Zhao, Yufan[3]  Guo, Pengfei[4]  Wen, Xiaoli[5]  Li, Qiuge[6]  Yang, Haiou[7]  Dong, Hongbiao[8]  Xue, Lei[9]  Huang, Weidong[10]  
机构:[1]Northwestern Polytech Univ, State Key Lab Solidificat Proc, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.,Northwestern Polytech Univ, MIIT China, Key Lab Met High Performance Addit Mfg & Innovat, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.;
[2]Northwestern Polytech Univ, State Key Lab Solidificat Proc, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.,Northwestern Polytech Univ, MIIT China, Key Lab Met High Performance Addit Mfg & Innovat, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.;
[3]Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Aoba Ku, 6-6-11 Aoba, Sendai, Miyagi 9808579, Japan.;
[4]Northwestern Polytech Univ, State Key Lab Solidificat Proc, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.,Northwestern Polytech Univ, MIIT China, Key Lab Met High Performance Addit Mfg & Innovat, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.;
[5]Northwestern Polytech Univ, State Key Lab Solidificat Proc, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.,Northwestern Polytech Univ, MIIT China, Key Lab Met High Performance Addit Mfg & Innovat, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.;
[6]Northwestern Polytech Univ, State Key Lab Solidificat Proc, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.,Northwestern Polytech Univ, MIIT China, Key Lab Met High Performance Addit Mfg & Innovat, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.;
[7]Northwestern Polytech Univ, State Key Lab Solidificat Proc, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.,Northwestern Polytech Univ, MIIT China, Key Lab Met High Performance Addit Mfg & Innovat, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.;
[8]Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England.;
[9]Northwestern Polytech Univ, Xian Bright Laser Technol LTD, Western Part South Second Ring Rd, Xian 710072, Shaanxi, Peoples R China.;
[10]Northwestern Polytech Univ, State Key Lab Solidificat Proc, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.,Northwestern Polytech Univ, MIIT China, Key Lab Met High Performance Addit Mfg & Innovat, 127 Youyixilu, Xian 710072, Shaanxi, Peoples R China.;
通讯作者:Lin, Xin;
年:2018
期刊名称:METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE影响因子和分区
卷:49A
期:10
页码范围:5118-5136
增刊:正刊
学科:材料科学
收录情况:SCI(E)(000443469700070)  
所属部门:材料学院
重要成果类型:重要期刊
人气指数:314
浏览次数:218
基金:National Natural Science Foundation of China [51323008, 51501154]; National Key Research and Development Programme of China [2016YFB1100104, 2016YFB1100600]; Key Scientific and Technological Innovation Team Project in Shaanxi Province [2014KCT-14]; Key Research and Development Program of Shaanxi Province [2016KTZDCY02-02]; Natural Science Foundation of Shaanxi Province [2017JM5052]
摘要:
The heat-affected zone (HAZ) liquation cracking mechanism of nickel-based superalloys with high (Al + Ti) content during the laser solid forming (LSF) process was investigated via laser remelting of an as-deposited IN-738LC superalloy. Microstructural HAZ analysis revealed that cracks consistently propagated from the HAZ to the remelting zone along the grain boundary (GB). The formation of a liquid film during GB liquation was mainly owing to localized melting of the semicontinuous gamma-gamma' ...More
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