Tailoring Microstructure and Mechanical Properties of Nano/ultrafine Grained AA6063 Alloy Processed by Accumulative Roll Bonding Process

IF 1.1 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Iranian Journal of Materials Science and Engineering Pub Date : 2020-03-10 DOI:10.22068/IJMSE.17.1.1
H. Jafarian, H. Miyamoto
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引用次数: 1

Abstract

In the present work, accumulative roll bonding (ARB) was used as an effective method for the process of nano/ultrafine-grained AA6063 alloy. Microstructural characteristics indicate considerable grain refinement leading to an average grain size of less than 200 nm after 7 ARB cycles. Texture analysis showed that 1-cycle ARB formed a strong texture near the copper component ({112}<111>). However, texture transition appeared by increasing the number of ARB cycles and after the 7-cycle of ARB, the texture was mainly developed close to the rotated cube component ({100}<110>). The results originated from mechanical properties indicated a substantial increment in strength and microhardness besides a meaningful drop of ductility after the 7 ARB cycles.
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堆积滚焊工艺制备纳米/超细晶粒AA6063合金的组织与力学性能
本文采用累积滚轧法(ARB)对纳米/超细晶粒AA6063合金进行了工艺研究。微观结构特征表明相当大的晶粒细化,导致在7次ARB循环后平均晶粒尺寸小于200nm。织构分析表明,1周期ARB在铜组分附近形成了强烈的织构({112})。然而,纹理转变是通过增加ARB循环次数而出现的,并且在ARB的7个循环之后,纹理主要在旋转立方体分量附近发展({100})。来自机械性能的结果表明,在7次ARB循环后,强度和显微硬度显著增加,延展性显著下降。
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来源期刊
Iranian Journal of Materials Science and Engineering
Iranian Journal of Materials Science and Engineering MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
1.30
自引率
10.00%
发文量
0
审稿时长
18 weeks
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