Crystal plasticity modelling and HR-DIC measurement of slip activation and strain localization in single and oligo-crystal Ni alloys under fatigue
详细信息 查看全文
- 作者：Yongjun Guana ; Bo Chenb ; Jinwen Zoua ; T. Ben Brittonb ; Jun Jiangb ; c ; Fionn P.E. Dunneb ; c ; fionn.dunne@imperial.ac.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：Nickel alloys ; Single crystals ; Polycrystals ; Crystal plasticity ; Slip localization ; Fatigue
- 刊名：International Journal of Plasticity
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：88
- 期：Complete
- 页码：70-88
- 全文大小：6236 K
文摘
- •
Single and multiple slip activation and heterogeneity in single and oligocrystal Ni fatigue identified.
- •
HR-DIC measurements quantify slip heterogeneity and localization in single and oligocrystal Ni fatigue.
- •
Crystal plasticity models replicate single and oligocrystals in bend fatigue loading.
- •
Unconstrained (single crystal) and constrained (grain boundary) effects quantified.
- •
Grain boundaries and crystallographic orientation combinations provide constraint leading to preferential fatigue hotspots.