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Strain-controlled low cycle fatigue properties of a rare-earth containing ME20 magnesium alloy
Mirza, F. A.; Wang, K.; Bhole, S. D.; Friedman, J.; Chen, D. L.; Ni, D. R.; Xiao, B. L.; Ma, Z. Y.; Mirza, FA (reprint author), Ryerson Univ, Dept Mech & Ind Engn, 350 Victoria St, Toronto, ON M5B 2K3, Canada.; Ma, ZY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2016-04-20
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume661Pages:115-125
AbstractThe present study was aimed to evaluate the strain-controlled cyclic deformation characteristics and low cycle fatigue (LCF) life of a low (similar to 0.3 wt%) Ce-containing, ME20-H112 magnesium alloy. The alloy contained equiaxed grains with ellipsoidal particles containing Mg and Ce (Mg12Ce), and exhibited a relatively weak basal texture. Unlike the high rare earth (RE)-containing magnesium alloy, the ME20M-H112 alloy exhibited asymmetrical hysteresis loops somewhat similar to the RE-free extruded Mg alloys due to the presence of twinning-detwinning activities during cyclic deformation. While cyclic stabilization was barely achieved even at the lower strain amplitudes, cyclic softening was the predominant characteristics at most strain amplitudes. The ME20M-H112 alloy showed basically an equivalent fatigue life to that of the RE-free extruded Mg alloys, which could be described by the Coffin-Manson law and Basquin's equation. Fatigue crack was observed to initiate from the near-surface imperfections, and in contrast to the typical fatigue striations, the present alloy showed some shallow dimples along with some fractions of quasi-cleavage features in the crack propagation area. (C) 2016 Elsevier B.V. All rights reserved.
description.department[mirza, f. a. ; wang, k. ; bhole, s. d. ; friedman, j. ; chen, d. l.] ryerson univ, dept mech & ind engn, 350 victoria st, toronto, on m5b 2k3, canada ; [ni, d. r. ; xiao, b. l. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china
KeywordMagnesium Alloy Rare-earth Elements Cyclic Deformation Twinning-detwinning Texture Weakening
Subject AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
Funding OrganizationNatural Sciences and Engineering Research Council of Canada (NSERC); AUTO21 Network of Centres of Excellence; National Natural Science Foundation of China [51371179]; Premier's Research Excellence Award (PREA); NSERC-Discovery Accelerator Supplement (DAS) Award; Canada Foundation for Innovation (CFI); Ryerson Research Chair (RRC) program
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75905
Collection中国科学院金属研究所
Corresponding AuthorMirza, FA (reprint author), Ryerson Univ, Dept Mech & Ind Engn, 350 Victoria St, Toronto, ON M5B 2K3, Canada.; Ma, ZY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Mirza, F. A.,Wang, K.,Bhole, S. D.,et al. Strain-controlled low cycle fatigue properties of a rare-earth containing ME20 magnesium alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,661:115-125.
APA Mirza, F. A..,Wang, K..,Bhole, S. D..,Friedman, J..,Chen, D. L..,...&Ma, ZY .(2016).Strain-controlled low cycle fatigue properties of a rare-earth containing ME20 magnesium alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,661,115-125.
MLA Mirza, F. A.,et al."Strain-controlled low cycle fatigue properties of a rare-earth containing ME20 magnesium alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 661(2016):115-125.
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