A viable approach to repair neutron shielding B_4C/6061 Al composite sheets through cold spray and hot rolling co-treatment

IOCAS-IR

	A viable approach to repair neutron shielding B_4C/6061 Al composite sheets through cold spray and hot rolling co-treatment
	Xiang Qiu ; Lu Qi ; Jun-rong Tang ; Naeem ul Haq Tariq ; Ji-qiang Wang ; Tian-ying Xiong
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
	2022-04-20
出版年	2022
卷号	v.106 期号:11 页码:175-184
文献类型	CNKI期刊论文
摘要	Cold spray(CS) is considered as a new type of repairing technique for restoration or remanufacturing of a wide range of unserviceable engineering components due to its unique ‘cold' characteristic. In this work, a viable repairing approach i.e. "cold spraying followed by hot rolling post-treatment" was successfully applied to restore defective neutron shielding B_4C/6061 Al composite plates. Scanning electron microscopy(SEM) and electron backscatter diffraction(EBSD) results revealed that the coating-substrate interface is in a good bonding state without micro-cracks. Hot rolling post-treatment resulted in improved microstructure of the as-sprayed deposit with more uniform distribution of B_4C particles in the matrix.Moreover, well bonded splat boundaries and strain free Al grains were evolved in the matrix due to enhanced splat deformation and continuous dynamic recrystallization(CDRX). Three-point bending test results revealed that the strength of the repaired material is at par with the in-service plates. The findings of this work could be considered as a great stride to further extend possible applications of CS for repairing engineering structural components.
关键词	B_4C/6061 Al Cold spray Repairing Three-point bending test
CNKI专辑号	B;
CNKI专辑名称	工程科技Ⅰ辑;
CNKI专题号	B020;
CNKI专题名称	材料科学;
分类号	TB333
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	financially supported by the National Natural Science Foundation of China (Nos. 51671205 and 51801217)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/187450
专题	中国科学院海洋研究所
作者单位	1.QingdaoNationalLaboratoryforMarineScienceandTechnology 2.CASKeyLaboratoryofMarineEnvironmentalCorrosionandBio-fouling,InstituteofOceanology,ChineseAcademyofSciences 3.ScienceCenterforMaterialCreationandEnergyConversion,InstituteofFrontierandInterdisciplinaryScience,ShandongUniversity 4.InstituteofMetalResearch,ChineseAcademyofSciences 5.DepartmentofMetallurgyandMaterialsEngineering,PakistanInstituteofEngineeringandAppliedSciences
推荐引用方式 GB/T 7714	Xiang Qiu,Lu Qi,Jun-rong Tang,et al. A viable approach to repair neutron shielding B_4C/6061 Al composite sheets through cold spray and hot rolling co-treatment. 2022.