Textures in AMCa602 and AZ31B magnesium alloys formed by wavy bend pressing
Textures in AMCa602 and AZ31B magnesium alloys formed by wavy bend pressing
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AMCa602 和 AZ31B 镁合金的波形弯曲压制织构
DOI：
10.2464/jilm.57.99
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
H. Tsubakino
中科院分区：
文献类型：
--
作者：
A. Yamamoto;Makoto Terashita;H. Tsubakino
作者开发了一种提高镁合金力学性能的新技术，即利用平面内旋转的波形面模具对试件进行反复热压。使用了固体润滑剂h-BN，并改变了波的大小。对AMCa602和AZ31B镁合金试件在623K下进行8次热压，每次热压后旋转45度。结果表明，与固溶处理相比，处理后的极图基面堆积强度降低，堆积方向弥散分布。力学性能的各向异性消失，表现出低的屈服应力和高的加工硬化率。
A new technique for improving mechanical properties in magnesium alloys was developed by the authors, in which specimens are repeatedly hot-pressed using wavy surface dies with in-plane rotating. A solid lubricant, h-BN, has been used and the size of the waves has been changed. Specimens of AMCa602 and AZ31B magnesium alloys were hot-pressed at 623 K for eight times with rotating at 45 degree after each pressing. The treated specimens showed that intensities in accumulation of basal plane in pole figures were decreased and the orientation of accumulation was diffusely scattered, compared with those obtained on solution heat treated specimens. And also, an anisotropy in mechanical properties disappeared to show low yield stress and high work hardening rate.