Effect of Laser Energy Density and Scanning Strategy on Residual Stress in Laser Melting Deposited FGH4096 Superalloy

doi:10.1007/s11665-024-09152-9

IMR OpenIR

	Effect of Laser Energy Density and Scanning Strategy on Residual Stress in Laser Melting Deposited FGH4096 Superalloy
	Liu, Shuai 1; Liu, Changsheng 2; Yuan, Chao 1
通讯作者	Liu, Changsheng(15040369625@163.com)
	2024-01-22
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
页码	10
摘要	Due to the high manufacturing cost, the failure or wear of FGH4096 superalloy parts can be quickly repaired through laser melting deposition (LMD). However, the repeated local rapid heating and cooling processes can increase residual stresses (RS), which reduce the service life of remanufactured parts and even cause cracking. This study analyzed the microstructure and formability of FGH4096 under different laser energy densities and scanning strategies and investigated the RS along the height direction through x-ray diffraction. The results showed that the process parameters had no effect on the phases in the deposited layer, and relatively higher energy density was conducive to obtaining denser samples, while the scanning strategies had little effect on the relative density of the samples. The RS at the top of the cladding layer exhibited tensile stress, while it exhibited compressive stress at the bottom or heat-affected zone. The maximum stress values were related to the process parameters, and lower energy density and an inclined scanning strategy were conducive to reducing the maximum RS and increasing the thickness of the low-stress layer. The research can help design or optimize LMD process parameters for FGH4096 to maximize the relative density of cladding layers while minimizing RS.
关键词	energy density laser melting deposition (LMD) residual stress (RS) scanning strategy superalloy
资助者	National Natural Science Foundation of China-Liaoning Joint Fund ; Youth Talent Fund of Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences ; Technical Support Division of Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
DOI	10.1007/s11665-024-09152-9
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China-Liaoning Joint Fund[U1508213] ; Youth Talent Fund of Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences[E11SL095] ; Technical Support Division of Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001153732100002
出版者	SPRINGER
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183934
专题	中国科学院金属研究所
通讯作者	Liu, Changsheng
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shuai,Liu, Changsheng,Yuan, Chao. Effect of Laser Energy Density and Scanning Strategy on Residual Stress in Laser Melting Deposited FGH4096 Superalloy[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2024:10.
APA	Liu, Shuai,Liu, Changsheng,&Yuan, Chao.(2024).Effect of Laser Energy Density and Scanning Strategy on Residual Stress in Laser Melting Deposited FGH4096 Superalloy.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,10.
MLA	Liu, Shuai,et al."Effect of Laser Energy Density and Scanning Strategy on Residual Stress in Laser Melting Deposited FGH4096 Superalloy".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2024):10.