模壓變形5052鋁合金的顯微組織與室溫拉伸性能
發(fā)布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新時間：2016-04-19
對5052鋁合金板進(jìn)行了多道次模壓(GP)變形, 研究了GP變形道次對其顯微組織和室溫拉伸性能的影響。
模壓變形5052鋁合金的顯微組織與室溫拉伸性能Microstructure and Tensile Properties at Room Temperature of 5052 Aluminum Alloy Processed by Groove Pressing Deformation對5052鋁合金板進(jìn)行了多道次模壓(GP)變形, 研究了GP變形道次對其顯微組織和室溫拉伸性能的影響。結(jié)果表明: 該鋁合金的平均晶粒尺寸隨GP變形道次的增加而減小, 4道次變形后平均晶粒尺寸由未變形的43.2 μm細(xì)化到約1.1 μm; 抗拉強度隨GP變形道次的增加而單調(diào)遞增, 伸長率則先快速下降后緩慢升高; 4道次GP變形能使5052鋁合金在提高抗拉強度的同時保持良好的塑性。
The 5052 aluminum alloy sheets were processed by the groove pressing (GP) deformation for multi-passes, and the effects of the GP deformation passes on the microstructure and tensile properties at room temperature were studied. The results show that the average grain size of the aluminum alloy decreased with the increase of the GP deformation passes. After deformation for four passes the average grain size was reduced from undeformed 43.2 μm to about 1.1 μm. The tensile strength monotonously increased with the increase of the GP deformation passes while the elongation first decreased rapidly then increased slowly. The process of GP deformation for four passes can improve the tensile strength and simultaneously maintained the good plasticity of the 5052 aluminum alloy.
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