IMR OpenIR
Simultaneously enhancing strength and toughness of Zr-based bulk metallic glasses via minor Hf addition
Zhu, Y. H.; Zhu, Z. W.; Chen, S.; Fu, H. M.; Zhang, H. W.; Li, H.; Wang, A. M.; Zhang, H. F.
2020-03-01
Source PublicationINTERMETALLICS
Volume118
AbstractZr65.5-xHfxNb3Cu13Ni11Al7.5 = 0.0, 0.5, 1.0, 1.5 and 2.0 at.%) bulk metallic glasses (BMGs) were successfully prepared by copper mold casting. The effects of minor Hf addition on the mechanical properties and fracture mechanisms were investigated. The quasi-static compressive mechanical properties of Zr65.5-.HfxNb3Cu13-Ni 11Al(7.5) alloys were significantly improved by Hf addition. The optimum compressive fracture strength (at) and fracture strain (et) are 1516 MPa and 2.6%, respectively, for the Zr-64.5Hf(1),oNb(3)Cu(13)Ni(1) 1Al(7.5) alloy. The impact toughness of the Zr64Hf1.5Nb3Cu13Ni11Al7.5 alloy (At = 127 kJ/m(2)) is nearly four times than that of the Zr(65.5)Nb(3)Cu(13)Ni(11)Al(7.)5 alloy (Ak = 33 kJ/m2). The increase of the fracture surface area and the ratio of vein-like patterns regions caused by Hf addition play an important role in fracture energy dissipation under dynamic loading. The dependence of mechanical properties on the Hf content is closely related to the variation of free volume in the current alloys. The relationship between the Hf addition and the free volume change is discussed in detail. These results may provide new insights into simultaneously enhancing the plasticity and toughness of BMGs with minor alloying.
DOI10.1016/j.intermet.2019.106685
WOS IDWOS:000517854000005
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/83092
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhu, Y. H.,Zhu, Z. W.,Chen, S.,et al. Simultaneously enhancing strength and toughness of Zr-based bulk metallic glasses via minor Hf addition[J]. INTERMETALLICS,2020,118.
APA Zhu, Y. H..,Zhu, Z. W..,Chen, S..,Fu, H. M..,Zhang, H. W..,...&Zhang, H. F..(2020).Simultaneously enhancing strength and toughness of Zr-based bulk metallic glasses via minor Hf addition.INTERMETALLICS,118.
MLA Zhu, Y. H.,et al."Simultaneously enhancing strength and toughness of Zr-based bulk metallic glasses via minor Hf addition".INTERMETALLICS 118(2020).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhu, Y. H.]'s Articles
[Zhu, Z. W.]'s Articles
[Chen, S.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhu, Y. H.]'s Articles
[Zhu, Z. W.]'s Articles
[Chen, S.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhu, Y. H.]'s Articles
[Zhu, Z. W.]'s Articles
[Chen, S.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.