onr:"swepub:oai:DiVA.org:liu-201850"
Search: onr:"swepub:oai:DiVA.org:liu-201850" > Origin of prestrain...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Zhu, ZhenyuChengdu Univ, Peoples R China (author)
Origin of prestrain-induced cyclic-strain hardening: Multi-scale experimental characterizations and simulations of 7075 aluminum alloy
- Article/chapterEnglish2024
Publisher, publication year, extent ...
- ELSEVIER SCI LTD,2024
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:liu-201850
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-201850URI
- https://doi.org/10.1016/j.matdes.2024.112711DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- Funding Agencies|The 2023 Open Project of Failure Mechanics and Engineering Disaster Prevention, Key Lab of Sichuan Province [FMEDP202303]; Technology Development Project Foundation of Petro-China Southwest Oil and Gas Field CDB Operating Company; National Natural Science Foundation of China [2023NSFSC0916]; Sichuan Science and Technology Program [20220303-16]; [52205182]
- The influence of prefabricated dislocation features induced by rate dependent prestrain on the post-cyclic process in 7075 aluminum alloy exhibits significant variations, which are of great importance in terms of concerns, designs, and discoveries. Considering strain rate dependent prestrain provides diversified hardening stimuli for the subsequent cyclic process. The maximum cyclic stress in the post-cyclic stage was maintained at the same level as the prestress with strain rates ranging from 10-4s-1 to 10-1s-1. Subsequently, by adjusting post-cycling stress amplitude, research was conducted on quasi-plastic amplitude cycle (QPC) and low plasticity amplitude cycle (LPC) loading conditions. Through experimental mechanism analysis, as well as verification through molecular dynamics and crystal plasticity simulations, prestrain induced by rapid strain rates enhanced the hardening during QPC, stemming from the effects of matrix reconstruction strengthening and wavy structured grain boundaries. However, prestrain induced by slow strain rates promoted the hardening during LPC, primarily arising from the non-uniform crystal structures within individual grains, which was achieved through the complex sub-crystal clusters at grain boundaries, along with intracrystal orderly slipping lattice. These findings offer new insights for the optimization of microstructural design through dislocation engineering.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Materialteknik Annan materialteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering Other Materials Engineering hsv//eng
- 7075 aluminum alloy; Cyclic stability; Rate dependent prestrain; Crystal plasticity; Molecular dynamics
Added entries (persons, corporate bodies, meetings, titles ...)
- Chai, GuocaiLinköpings universitet,Konstruktionsmaterial,Tekniska fakulteten,Chengdu Univ, Peoples R China(Swepub:liu)guoch17 (author)
- Zhang, JunliangPetroChina Southwest Oil & Gas Field CDB Operating, Peoples R China (author)
- Li, XiaotaoChengdu Univ, Peoples R China (author)
- Huang, YanyanChengdu Univ, Peoples R China (author)
- Zhang, JieSouthwest Jiaotong Univ, Peoples R China (author)
- Yu, ChaoSouthwest Jiaotong Univ, Peoples R China (author)
- Wang, QingyuanChengdu Univ, Peoples R China (author)
- Chengdu Univ, Peoples R ChinaKonstruktionsmaterial (creator_code:org_t)
Related titles
- In:Materials & design: ELSEVIER SCI LTD2380264-12751873-4197
Internet link
Find in a library
- Materials & design (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Zhu, Zhenyu
- Chai, Guocai
- Zhang, Junliang
- Li, Xiaotao
- Huang, Yanyan
- Zhang, Jie
- show more...
- Yu, Chao
- Wang, Qingyuan
- show less...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- and Other Materials ...
- Articles in the publication
- Materials & desi ...
- By the university
- Linköping University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
