The effect of Hf on solidification cracking inhibition of IN738LC processed by Selective Laser Melting

Yu, Zhengrong1,2,3; Guo, Chuan1,2; Han, Shuang1,2; Hu, Xiaogang1,2; Cao, Lijie1,2; Xu, Zhen1,2; Ding, Hui3; Zhu, Qiang1,2

2021-02-15

10.1016/j.msea.2021.140733

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   影响因子和分区

0921-5093

1873-4936

The effects of Hf addition on defects and mechanical properties of the "hard-to-weld" superalloy IN738LC manufactured by Selective Laser Melting (SLM) process were studied. The addition of Hf inhibits cracking in SLMed IN738LC. Cracking free and low porosity IN738LC parts were obtained in a wide range of process parameters. The study shows that the cracks were refilled by Hf-riched melt and the relative density was increased, thus the tensile properties at 700 and 850 degrees C were improved.

Alloy design Laser powder bed fusion Ni-based sueralloy Cracking inhibition

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[91860131] ; Shenzhen Science and Technology Innovation Commission["JCYJ20170817111811303","KQTD20170328154443162","ZDSYS201703031748354"]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000615992600003

ELSEVIER SCIENCE SA

20210409812333

Cracks ; Melting ; Refuse digestion

Municipal and Industrial Wastes; Waste Treatment and Disposal:452 ; Chemical Operations:802.3

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
2.Shenzhen Key Lab Addit Mfg Highperformance Mat, Shenzhen 518055, Peoples R China
3.Southeast Univ, Sch Mat Sci & Engn, Nanjing, Peoples R China

Yu, Zhengrong,Guo, Chuan,Han, Shuang,et al. The effect of Hf on solidification cracking inhibition of IN738LC processed by Selective Laser Melting[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,804.

Yu, Zhengrong.,Guo, Chuan.,Han, Shuang.,Hu, Xiaogang.,Cao, Lijie.,...&Zhu, Qiang.(2021).The effect of Hf on solidification cracking inhibition of IN738LC processed by Selective Laser Melting.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,804.

Yu, Zhengrong,et al."The effect of Hf on solidification cracking inhibition of IN738LC processed by Selective Laser Melting".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 804(2021).