Effect of Rolling Process on the Mechanical Property of Al-Mg-Si Alloy Sheet

Li Heliang1; Yuan Xiaoguang1; Wu Mingfu1; Huang Hongjun1

doi:10.15980/j.tzzz.2013.02.025

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Effect of Rolling Process on the Mechanical Property of Al-Mg-Si Alloy Sheet
Vol. 33, Issue 2, Pages: 108-111(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.02.025

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[1]李赫亮,袁晓光,吴明富,黄宏军.轧制工艺对Al-Mg-Si合金板材力学性能的影响[J].特种铸造及有色合金,2013,33(02):108-111.

Li Heliang1, Yuan Xiaoguang1, Wu Mingfu1, et al. Effect of Rolling Process on the Mechanical Property of Al-Mg-Si Alloy Sheet. [J]. Special Casting & Nonferrous Alloys 33(2):108-111(2013)
[1]李赫亮,袁晓光,吴明富,黄宏军.轧制工艺对Al-Mg-Si合金板材力学性能的影响[J].特种铸造及有色合金,2013,33(02):108-111. DOI： 10.15980/j.tzzz.2013.02.025.

Li Heliang1, Yuan Xiaoguang1, Wu Mingfu1, et al. Effect of Rolling Process on the Mechanical Property of Al-Mg-Si Alloy Sheet. [J]. Special Casting & Nonferrous Alloys 33(2):108-111(2013) DOI： 10.15980/j.tzzz.2013.02.025.

摘要

通过对Al-Mg-Si合金板材的组织观察和力学性能的测试

研究了采用不同变形量的3种轧制工艺对Al-Mg-Si合金板材显微组织和力学性能的影响

并探讨了该合金的强化机制。结果表明

轧制工艺对Al-Mg-Si合金的显微组织和力学性能均有显著影响。在总变形量相同的条件下

经47%、53%、67%的热轧

然后进行73%、80%、87%的冷轧的板材综合力学性能最好

其抗拉强度、屈服强度、伸长率和布氏硬度（HB）分别为398.4MPa、325.8MPa、20%、112.0;其强化是形变强化、细晶强化和第二相强化共同作用的结果。

Abstract

The effects of rolling process on the microstructure and mechanical property of Al-Mg-Si alloy sheet were investigated by the microstructure observation

strength

elongation and hardness properties tests

and the strengthening mechanism of the alloy was discussed.The results show that the microstructure and mechanical properties of the Al-Mg-Si alloy sheet are changed significantly by different rolling process.Under the same total deformation conditions

the tensile strength

yield strength

elongation and hardness of rolling third state and second state are significantly better than those of the rolling first state.In the three kinds of rolling process

rolling third state plate has the best comprehensive mechanical property

where the tensile strength

yield strength

elongation and hardness reach 398.4 MPa

325.8MPa

20%and 112.0

respectively.The strengthening mechanism of rolling third state alloy is characterized by the interaction of deformation strengthening

grain refinement strengthening and second phase strengthening.