Characterization and modeling of damage behavior of a casting aluminum wheel considering inhomogeneity of microstructure and microdefects

doi:10.1016/j.engfailanal.2022.107018

IMR OpenIR

	Characterization and modeling of damage behavior of a casting aluminum wheel considering inhomogeneity of microstructure and microdefects
	Kong, Decai 1; Sun, Dong-Zhi 2; Yang, Baocheng 3,4; Qiao, Haibo 1; Wei, Chunying 1; Lang, Yuling 1; Song, Hongwu 3; Gao, Jian 1
通讯作者	Sun, Dong-Zhi(suncae@unity-mail.de)
	2023-03-01
发表期刊	ENGINEERING FAILURE ANALYSIS
ISSN	1350-6307
卷号	145 页码:25
摘要	For a meaningful description of casting processes on component behavior, the inhomogeneities of the microstructure, microdefects, and mechanical properties including damage behavior in a casting aluminum wheel were experimentally characterized. Both effects of microstructure/ microdefects and stress state on damage behavior were determined by performing smooth and notched tensile tests and torsion tests on specimens extracted from different positions. The distribution of microstructure and microdefects in the cast wheel and the corresponding effects on damage development were analyzed using metallography, 3D X-ray CT, and SEM. Casting simulations were performed to determine distributions of local parameters like solidification time, secondary dendrite arm spacing (SDAS), and porosity. It is clear that the ultimate strength and elongation decrease with increasing porosity and SDAS. A material model describing the influence of porosity on flow stress and a damage model describing the relationships of fracture strain with porosity and triaxiality were developed based on the experimental and numerical results. The correlations of yield stress and elongation with porosity were applied to calibrate the models. Additionally, the influence of stress triaxiality on fracture strain was determined using torsion and notched tensile tests for selected porosities and the corresponding inverse simulations. Simulations of the different specimen tests with the developed material model and damage model could satisfactorily describe the experimental results. This method builds a good basis for coupling between casting simulation and structural simulation to optimize manufacturing processes and develop lightweight products. Improving the precision of microdefect calculation in casting simulations and applying of a stochastic model in structural simulations are important future works.
关键词	A356-T6 casting alloy Characterization Porosity Microstructure Damage model Simulation
DOI	10.1016/j.engfailanal.2022.107018
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Characterization & Testing
WOS记录号	WOS:000916314900001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：13[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/321006/175207
专题	中国科学院金属研究所
通讯作者	Sun, Dong-Zhi
作者单位	1.CIT Dicastal Co Ltd, 185 Longhai Rd,Econ & Technol Dev Zone, Qinhuangdao 066011, Hebei, Peoples R China 2.SunCAE Consulting, Ginsterweg 3, D-79194 Gundelfingen, Germany 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Kong, Decai,Sun, Dong-Zhi,Yang, Baocheng,et al. Characterization and modeling of damage behavior of a casting aluminum wheel considering inhomogeneity of microstructure and microdefects[J]. ENGINEERING FAILURE ANALYSIS,2023,145:25.
APA	Kong, Decai.,Sun, Dong-Zhi.,Yang, Baocheng.,Qiao, Haibo.,Wei, Chunying.,...&Gao, Jian.(2023).Characterization and modeling of damage behavior of a casting aluminum wheel considering inhomogeneity of microstructure and microdefects.ENGINEERING FAILURE ANALYSIS,145,25.
MLA	Kong, Decai,et al."Characterization and modeling of damage behavior of a casting aluminum wheel considering inhomogeneity of microstructure and microdefects".ENGINEERING FAILURE ANALYSIS 145(2023):25.