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A novel medium heavy alloy (MHA) with excellent static/dynamic properties and impact toughness
Li, Y.; Liu, G. Q.; Hu, X. B.; Wu, L. H.; Tan, C. W.; Dravid, Vinayak P.; Liu, S. Z.
2019-03-15
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume162Pages:311-315
AbstractConventional tungsten heavy alloys (WHAs) fabricated using powder metallurgic method exhibit a much lower strength than ultrahigh strength steels (UHSSs). Here, we first time designed a novel medium heavy alloy (MHA) of 57Ni-37W-5Co-1Ta fabricated using the casting technology. Compared to WHA, this MHA not only largely reduces the difficulty in manufacturing and post working, but also enhances the toughness by similar to 10 times together with excellent quasi-static and dynamic properties. The superior strength-toughness is attributed to the face-centered cubic (FCC) matrix and/or the nano-sized secondary phases. While the superior dynamic performance is attributed to the widening of adiabatic shear bands (ASBs). (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordTungsten heavy alloys (WHAs) Ultra high strength steels (UHSSs) Medium heavy alloys (MHAs) Impact toughness Dynamic properties
Indexed BySCI
Language英语
WOS IDWOS:000457664900065
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81279
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Li, Y.,Liu, G. Q.,Hu, X. B.,et al. A novel medium heavy alloy (MHA) with excellent static/dynamic properties and impact toughness[J]. SCRIPTA MATERIALIA,2019,162:311-315.
APA Li, Y..,Liu, G. Q..,Hu, X. B..,Wu, L. H..,Tan, C. W..,...&Liu, S. Z..(2019).A novel medium heavy alloy (MHA) with excellent static/dynamic properties and impact toughness.SCRIPTA MATERIALIA,162,311-315.
MLA Li, Y.,et al."A novel medium heavy alloy (MHA) with excellent static/dynamic properties and impact toughness".SCRIPTA MATERIALIA 162(2019):311-315.
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