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Aging hardening behavior and P texture formation of laser repaired GH4169 nickel-based alloy

文献类型：期刊论文

作者Liu, Fei3,4; Liu, Yao2; Shi, Huiqi2; Geng, Chuanqing4; Huan, Yong1,3; Xie, Huimin4; Hou, Xiaohu2; Xun Y(郇勇)
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2024-11-25
卷号1006页码:13
关键词Aging hardening GH4169 alloy Laser repairing Precipitates Texture
ISSN号0925-8388
DOI10.1016/j.jallcom.2024.176271
通讯作者Xie, Huimin(xiehm@mail.tsinghua.edu.cn) ; Hou, Xiaohu(houxh@imut.edu.cn)
英文摘要Laser repair technology based on the DED principle is an advanced green remanufacturing technology that not only repairs the damaged parts but also restores their mechanical properties. Therefore, this technology has been widely used for the repair of key components in aircraft engine. However, due to the fact that the mechanical properties of the repaired zone are usually lower than those of the substrate, this limits the application of laser repair technology in the field of remanufacturing. Therefore, it is crucial to study the microstructure evolution and its influence on mechanical properties of the laser repaired object to improve the mechanical properties of the repaired zone and promote the widespread application of laser repair technology. In this study, the microstructure evolution and its effect on the aging hardening mechanism of laser repaired GH4169 alloy were investigated using SEM, EBSD and TEM techniques. The results show that the hardening mechanisms in the repaired zone are different from those in the substrate. The main hardening mechanisms in the repaired zone are strain hardening, elastic stiffness strengthening and aging hardening, while the hardening mechanisms in the matrix are grain refinement strengthening, aging hardening, strain hardening and texture strengthening. In addition, during the aging period, the texture of the matrix is mainly recrystallized Cube and Goss textures, while the texture of the repaired zone is mainly P texture, and the P grain nucleates and grows in the R-Copper grain.
WOS关键词INCONEL 718 ; DEPOSITION ; STRESS ; ENERGY
资助项目National Natural Science Foundation of China[12032013] ; National Natural Science Foundation of China[12327801] ; National Natural Science Foundation of China[11972209] ; Natural Science Foundation of Inner Mongolia[2023LHMS01013]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001307695400001
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia
源URL[http://dspace.imech.ac.cn/handle/311007/96514]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Xie, Huimin; Hou, Xiaohu
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Inner Mongolia Univ Technol, Coll Mat Sci & Engn, Hohhot 010051, Peoples R China
3.Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China
4.Tsinghua Univ, Sch Aerosp Engn, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Fei,Liu, Yao,Shi, Huiqi,et al. Aging hardening behavior and P texture formation of laser repaired GH4169 nickel-based alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,1006:13.
APA Liu, Fei.,Liu, Yao.,Shi, Huiqi.,Geng, Chuanqing.,Huan, Yong.,...&郇勇.(2024).Aging hardening behavior and P texture formation of laser repaired GH4169 nickel-based alloy.JOURNAL OF ALLOYS AND COMPOUNDS,1006,13.
MLA Liu, Fei,et al."Aging hardening behavior and P texture formation of laser repaired GH4169 nickel-based alloy".JOURNAL OF ALLOYS AND COMPOUNDS 1006(2024):13.

入库方式： OAI收割

来源：力学研究所

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