扫描策略对激光立体成形GH3536合金温度场和组织性能的影响  

Effect of Scanning Strategy on Temperature Field and Microstructure and Tensile Property of GH3536 Alloy Fabricated by Laser Solid Forming

作　　者：王树森 张雪[2,3,4] 穆亚航 马良[4] 梁静静 刘常升[3] 王道红[5] 张鹏 WANG Shu-sen;ZHANG Xue;MU Ya-hang;Ma Liang;LIANG Jing-jing;LIU Chang-sheng;WANG Dao-hong;ZHANG Peng(Anshan Military Representative Office of Shengyang Military Representative Bureau,Naval Equipment Department of the Chinese People’s Liberation Army,Anshan 114001,Liaoning,China;Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,Liaoning,China;School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,Liaoning,China;Key Laboratory for Anisotropy and Texture of Materials,Ministry of Education,School of Materials Science and Engineering,Northeastern University,Shenyang 110819,Liaoning,China;Jiangsu Feiyue Machine and Pumps Group,Jingjiang 214537,Jiangsu,China)

机构地区：[1]中国人民解放军海军装备部驻沈阳地区军事代表局驻鞍山地区军事代表室,辽宁鞍山114001 [2]中国科学院金属研究所师昌绪材料创新中心,辽宁沈阳110016 [3]中国科学技术大学材料科学与工程学院,辽宁沈阳110016 [4]东北大学,辽宁沈阳110819 [5]江苏飞跃机泵集团有限公司,江苏靖江214537

出　　处：《铸造》2022年第11期1358-1363,共6页Foundry

基　　金：国家科技重大专项(Y2019-VII-0011-0151);基础加强计划技术领域基金(2021-JCJQ-JJ-0092)。

摘　　要：利用ABAQUS有限元分析软件对两种扫描策略激光立体成形GH3536高温合金进行了温度场模拟,结果表明,往复交叉光栅扫描策略的能量累积高于交叉光栅式扫描策略的路径。利用金相、扫描、拉伸等检测手段研究了两种扫描策略对合金组织性能的影响。结果表明,在其他工艺参数合适的前提下,两种扫描策略对合金显微组织和性能影响不大。显微组织均以柱状晶为主,断裂方式均为韧性断裂,断口形貌为等轴韧窝。In this study,ABAQUS software was used to simulate the temperature field of GH3536 superalloy produced by laser solid forming with two scanning strategies.The results showed that the energy accumulation of reciprocating-cross-grating-scanning strategy was higher than that of cross-grating-scanning strategy.The effects of the two scanning strategies on the microstructure and tensile properties of the alloy were studied by means of OM and SEM.The results showed that the two scanning strategies had limited effect on the microstructure and the properties of the alloy on the premise of appropriate process parameters.The two samples both showed columnar microstructure,and fractured on a ductile mode with dimples on the fractured surface during tensile test.

关 键 词：激光立体成形 扫描策略 GH3536高温合金 

分 类 号：TG132.3[一般工业技术—材料科学与工程]