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Compressive plastic metallic glasses with exceptional glass forming ability in the Ti-Zr-Cu-Fe-Be alloy system
Zhang, L.; Tang, M. Q.; Zhu, Z. W.; Fu, H. M.; Zhang, H. W.; Wang, A. M.; Li, H.; Zhang, H. F.; Hu, Z. Q.; hfzhang@imr.ac.cn
2015
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume638Pages:349-355
AbstractWe report seven TiZr-based bulk metallic glasses (BMGs) developed in the Ti-Zr-Cu-Fe-Be alloy system with critical sizes over 20 mm for glass formation. Especially, the melts with compositions of Ti31.9Zr33.4Cu8.7Fe4Be22 (at.%, No. 6 alloy) and Ti32.8Zr30.2Cu9Fe5.3Be22.7 (No. 7 alloy) can directly solidify into 150 g glassy ingots, and the No. 7 alloy could be cast into an amorphous rod with a diameter of 50 mm and a height of 75 mm by the simple copper mold casting method. Yield strength, maximum strength, the increase of true stress after yielding, and compressive plastic strain of No. 6 BMG are 1720 MPa, 2010 MPa, 165 MPa and 8%, respectively. Other BMGs show similar mechanical properties with compressive plastic strains more than 5%, concomitant work hardening-like behavior. A parameter named as angles of spherical compositional vectors (ASCVs) was proposed to quantitatively evaluate the discrepancy between two multiple-component compositions. These plastic BMGs with exceptional GFA in the Ti-Zr-Cu-Fe-Be alloy system have enriched the family of BMGs and may have scientific significance on developing advanced BMGs for practical applications. (C) 2015 Elsevier B.V. All rights reserved.
description.department[zhang, l. ; tang, m. q. ; zhu, z. w. ; fu, h. m. ; zhang, h. w. ; wang, a. m. ; li, h. ; zhang, h. f. ; hu, z. q.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [zhang, l.] univ chinese acad sci, beijing 100049, peoples r china
KeywordMetallic Glasses Amorphous Materials Glass Forming Ability Plasticity Work Hardening
Funding OrganizationNational Basic Research Program of China (973 Program) [2011CB606301]; National Natural Science Foundation of China [51434008]; Program of "One Hundred Talented People'' of the Chinese Academy of Sciences
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74679
Collection中国科学院金属研究所
Corresponding Authorhfzhang@imr.ac.cn
Recommended Citation
GB/T 7714
Zhang, L.,Tang, M. Q.,Zhu, Z. W.,et al. Compressive plastic metallic glasses with exceptional glass forming ability in the Ti-Zr-Cu-Fe-Be alloy system[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2015,638:349-355.
APA Zhang, L..,Tang, M. Q..,Zhu, Z. W..,Fu, H. M..,Zhang, H. W..,...&hfzhang@imr.ac.cn.(2015).Compressive plastic metallic glasses with exceptional glass forming ability in the Ti-Zr-Cu-Fe-Be alloy system.JOURNAL OF ALLOYS AND COMPOUNDS,638,349-355.
MLA Zhang, L.,et al."Compressive plastic metallic glasses with exceptional glass forming ability in the Ti-Zr-Cu-Fe-Be alloy system".JOURNAL OF ALLOYS AND COMPOUNDS 638(2015):349-355.
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