Deformation mechanism and quantitative characterization of Al2O3 inclusions in powder metallurgy superalloys

doi:10.1016/j.pnsc.2022.07.005

IMR OpenIR

	Deformation mechanism and quantitative characterization of Al2O3 inclusions in powder metallurgy superalloys
	Feng, Yefei 1; Ding, Fangzheng 1; Duan, Qiqiang 2; Zou, Jinwen 1; Zhou, Xiaoming 1; Kang, Yongwang 1; Wang, Xuqing 1
通讯作者	Feng, Yefei(yefeifeng0226@126.com) ; Zou, Jinwen()
	2022-08-01
发表期刊	PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
ISSN	1002-0071
卷号	32 期号:4 页码:482-489
摘要	By means of implanting inclusions artificially, the evolution law of three-dimensional morphology and size of Al(2)O(3 )inclusions in FGH96 powder metallurgy (PM) superalloy during hot iso-static pressing (HIP), hot extrusion (HEX) and hot isothermal forging (HIF) process was investigated by SEM and quasi in situ Micronano-CT. The size change of inclusions during different stages was studied quantitatively, the three-dimensional (3D) morphology of the inclusions was characterized, and the deformation mechanism was proposed. The results showed that the inclusions in powder stage were long stripe or plate-like shape. During HIP, Al2O3 inclusions were mechanically bonded to the alloy matrix, and its chemical composition, morphology and size remained unchanged. During HEX, Al2O3 inclusions were broken and elongated into chain shape due to shear stress. The quantitative relationship between inclusion size after extrusion and extrusion ratio as well as original inclusion size was established. During HIF, the relationship between 3D morphology, size, orientation and deformation of a single inclusion during forging compression was quantitatively characterized by quasi in-situ micronano-CT for the first time. The above evolution law provides theoretical basis and technical support for improving the purity level of powder turbine disk.
关键词	Powder metallurgy superalloy Single inclusion Deformation mechanism Quantitative characterization Micronano-CT
资助者	Major National Science and Tech- nology projects of China
DOI	10.1016/j.pnsc.2022.07.005
收录类别	SCI
语种	英语
资助项目	Major National Science and Tech- nology projects of China[2017 -VI -0009]
WOS研究方向	Materials Science ; Science & Technology - Other Topics
WOS类目	Materials Science, Multidisciplinary ; Multidisciplinary Sciences
WOS记录号	WOS:000854558900001
出版者	ELSEVIER SCIENCE INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175493
专题	中国科学院金属研究所
通讯作者	Feng, Yefei; Zou, Jinwen
作者单位	1.AEEC Beijing Inst Aeronaut Mat, Sci & Technol Adv High Temp Struct Mat Lab, Beijing 100095, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Feng, Yefei,Ding, Fangzheng,Duan, Qiqiang,et al. Deformation mechanism and quantitative characterization of Al2O3 inclusions in powder metallurgy superalloys[J]. PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,2022,32(4):482-489.
APA	Feng, Yefei.,Ding, Fangzheng.,Duan, Qiqiang.,Zou, Jinwen.,Zhou, Xiaoming.,...&Wang, Xuqing.(2022).Deformation mechanism and quantitative characterization of Al2O3 inclusions in powder metallurgy superalloys.PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,32(4),482-489.
MLA	Feng, Yefei,et al."Deformation mechanism and quantitative characterization of Al2O3 inclusions in powder metallurgy superalloys".PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL 32.4(2022):482-489.