.png){kind=icon}
返回
Microstructural tailoring in reverse gradient-structured copper sheet using single-roll angular-rolling and subsequent annealing
.png){kind=icon}
PRE
AI
DOI：10.1016/j.msea.2019.138258.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
This paper reports on mechanical properties dependent on microstructural heterogeneity in a reverse gradient structured Cu sheet fabricated using a new continuous severe plastic deformation process called single-roll angular-rolling (SRAR). The material consists of coarse-grained surface and fine-grained core regions of which the spatial arrangement is the opposite of conventional gradient structures with fine-grained surface and coarse grained core regions. The microstructure was diversified by manipulating the subsequent annealing time after the 6th pass of SRAR, by which three kinds of heterogeneous structures were manufactured. These consisted of a recrystallized fine-grained core, recrystallized coarse-grained surface, and non-recrystallized region. All these materials commonly exhibited outstanding combinations of strength and ductility exceeding that of the initial material. The additional strengthening and strain hardening in each material related to the microstructural heterogeneity, were discerned by comparison using the rule-of-mixture. Consequently, a briefly annealed material with the largest area fraction of non-recrystallized region was most beneficial to the extra strengthening for the yield strength, whereas a fully recrystallized reverse gradient structure gained superiority for flow stress from further strain hardening. The mechanical uniqueness of each material was primarily governed by the back-stress evolution originating from its microstructural heterogeneity. Ultimately, this study has laid a cornerstone for microstructural tailoring in reverse gradient-structured materials using the SRAR process.
Keyword:
Copper
Gradient structure
Microstructure design
Single-roll angular-rolling
Back stress
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
机构
暂无机构信息
引用论文
Scheme of the energy levels of uranyl in the lowest excited state derived by means of the absorption spectra of the hydroxo complexes通过羟基配合物的吸收光谱得出的最低激发态铀酰能级的方案
PREAI
分享收藏High tensile ductility via enhanced strain hardening in ultrafine-grained Cu.png)
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSINGIF7
PREAI
分享收藏Single-roll angular-rolling: A new continuous severe plastic deformation process for metal sheetsSCRIPTA MATERIALIA
SCRIPTA MATERIALIAIF5.6
PREAI
分享收藏Influence of gradient structure volume fraction on the mechanical properties of pure copperMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSINGIF7
PREAI
分享收藏Mechanical properties and optimal grain size distribution profile of gradient grained nickelACTA MATERIALIA
OAAI
ACTA MATERIALIAIF9.3
OAAI分享收藏A model for the grain size dependent work hardening of copper铜的晶粒尺寸依赖性加工硬化模型SCRIPTA MATERIALIA
SCRIPTA MATERIALIAIF5.6
PREAI
分享收藏
查看更多内容