Mechanical Behavior and Failure Mechanism of an As-Extruded Mg-11wt%Y Alloy at Elevated Temperature

doi:10.1007/s40195-024-01700-5

IMR OpenIR

	Mechanical Behavior and Failure Mechanism of an As-Extruded Mg-11wt%Y Alloy at Elevated Temperature
	Zhang, Lan 1,2; Xu, Dao-Kui 1,2; Wang, Bao-Jie 3; Lu, Cui-Lan 1,2; Wang, Shuo 4; Xu, Xiang-Bo 1,2; Wang, Dong-Liang 1,2; Lv, Xin 1,2; Han, En-Hou 2,5
通讯作者	Xu, Dao-Kui(dkxu@imr.ac.cn) ; Wang, Bao-Jie(bjwang@alum.imr.ac.cn)
	2024-04-15
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	13
摘要	Through carrying out the high-temperature tensile experiments on an as-extruded Mg-11wt%Y alloy at 350 degrees C, 400 degrees C, 450 degrees C, 500 degrees C and 550 degrees C, the mechanical behavior and fracture mechanisms at elevated temperatures are investigated and compared. Tensile results show that with the increase of temperature, the yield strength and ultimate tensile strength of the alloy increase at first and then decrease, while that the elongation ratio decreases firstly and then increases. For the sample being tested at 350 degrees C, the values of yield strength, ultimate tensile strength and the elongation ratio are 188 MPa, 266 MPa and 11%, respectively. At 400 degrees C, the yield strength and ultimate tensile strength reach the maximum values of, respectively, 198 MPa and 277 MPa, but the elongation ratio is the lowest and its value is only 8%. When the applied temperature is increased to 550 degrees C, the values of yield strength and ultimate tensile strength, respectively, decrease to 140 MPa and 192 MPa and the elongation ratio increases to 38%. Failure analysis demonstrates that the fracture surfaces of different samples are mainly composed of plastic dimples and exhibit the typical characteristic of ductile fracture. The observation to the fracture side surfaces indicates that at the temperatures of 350 degrees C and 400 degrees C, microcracks mainly initiate in the interior of Mg24Y5 particles. When the temperatures are 450 degrees C, 500 degrees C and 550 degrees C, the cracks preferentially initiate at the Mg24Y5/alpha-Mg interfaces.
关键词	Mg-Y alloy High-temperature tensile properties Fracture mechanism Failure analysis
资助者	National Natural Science Foundation of China ; Liaoning Province's project of Revitalizing Liaoning Talents ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province ; Strategic New Industry Development Special Foundation of Shenzhen ; Funds of International Joint Laboratory for Light Alloys, Liaoning BaiQianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan ; National Key Research and Development Program of China ; Innovation Fund of Institute of Metal Research (IMR) ; Chinese Academy of Sciences (CAS) ; National Basic Research Program of China (973 Program) ; Bintech-IMR RD Program ; Fundamental Research Fund for the Central Universities
DOI	10.1007/s40195-024-01700-5
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U21A2049] ; National Natural Science Foundation of China[52071220] ; National Natural Science Foundation of China[51871211] ; National Natural Science Foundation of China[51701129] ; National Natural Science Foundation of China[51971054] ; Liaoning Province's project of Revitalizing Liaoning Talents[XLYC1907062] ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province[2019-BS-200] ; Strategic New Industry Development Special Foundation of Shenzhen[JCYJ20170306141749970] ; Funds of International Joint Laboratory for Light Alloys, Liaoning BaiQianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan[61409220118] ; National Key Research and Development Program of China[2017YFB0702001] ; National Key Research and Development Program of China[2016YFB0301105] ; Innovation Fund of Institute of Metal Research (IMR) ; Chinese Academy of Sciences (CAS) ; National Basic Research Program of China (973 Program)[2013CB632205] ; Bintech-IMR RD Program ; Fundamental Research Fund for the Central Universities[N2009006] ; [GYY-JSBU-2022-009]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001204697700001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185561
专题	中国科学院金属研究所
通讯作者	Xu, Dao-Kui; Wang, Bao-Jie
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China 4.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 5.Inst Corros Sci & Technol, Chengdu 510070, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Lan,Xu, Dao-Kui,Wang, Bao-Jie,et al. Mechanical Behavior and Failure Mechanism of an As-Extruded Mg-11wt%Y Alloy at Elevated Temperature[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:13.
APA	Zhang, Lan.,Xu, Dao-Kui.,Wang, Bao-Jie.,Lu, Cui-Lan.,Wang, Shuo.,...&Han, En-Hou.(2024).Mechanical Behavior and Failure Mechanism of an As-Extruded Mg-11wt%Y Alloy at Elevated Temperature.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13.
MLA	Zhang, Lan,et al."Mechanical Behavior and Failure Mechanism of an As-Extruded Mg-11wt%Y Alloy at Elevated Temperature".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):13.