Twinning-related enhancement in strength and ductility of Cu-37Zn alloy by the cryogenic ultrasonic impact treatment supplemented with ECAP
journal contribution
posted on 2022-01-21, 15:56 authored by BN Mordyuk, NI Khripta, Liguo ZhaoThe effects of ultrasonic impact treatment (UIT) and UIT with equal channel angular pressing (ECAP), on the microstructure of Cu37Zn alloy are studied at ambient and cryogenic temperatures. With decreasing process temperature, highly twinned areas of submicro/nano-scale thickness/spacing, together with dislocation tangles/cells, are introduced in the alloy. Direct microscopy observation and stored energy release analysis confirm enhanced twinnings in the cryo-UIT and cryo-UIT/ECAP treated alloy that simultaneously provide superior Vickers hardness and formability (twinning-induced plasticity effect).
Funding
Royal Society Project "Cryogenic ultrasonic impact treatment for surface nanotwinning of metal alloys" (Grant IES\R2\181158)
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Materials LettersVolume
310Publisher
ElsevierVersion
- AM (Accepted Manuscript)
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© ElsevierPublisher statement
This paper was accepted for publication in the journal Materials Letters and the definitive published version is available at https://doi.org/10.1016/j.matlet.2021.131512Acceptance date
2021-12-13Publication date
2021-12-16Copyright date
2022ISSN
0167-577XPublisher version
Language
- en
Depositor
Prof Liguo Zhao. Deposit date: 13 December 2021Article number
131512Usage metrics
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