稀土Ce对Al-10Mg合金组织及力学性能的影响

吴健; 古文全; 薛涛; 于云峰; 郭光平; 吴泽宏

doi:10.15980/j.tzzz.2014.01.023

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稀土Ce对Al-10Mg合金组织及力学性能的影响
Effects of Cerium Addition on the Microstructure and Mechanical Properties of Al-10Mg Alloys
2014年34卷第1期页码：89-92
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.01.023

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[1]吴健,古文全,薛涛,于云峰,郭光平,吴泽宏.稀土Ce对Al-10Mg合金组织及力学性能的影响[J].特种铸造及有色合金,2014,34(01):89-92.

Wu Jian, Gu Wenquan, Xue Tao, et al. Effects of Cerium Addition on the Microstructure and Mechanical Properties of Al-10Mg Alloys[J]. Special Casting & Nonferrous Alloys, 2014,34(1):89-92.
[1]吴健,古文全,薛涛,于云峰,郭光平,吴泽宏.稀土Ce对Al-10Mg合金组织及力学性能的影响[J].特种铸造及有色合金,2014,34(01):89-92. DOI： 10.15980/j.tzzz.2014.01.023.

Wu Jian, Gu Wenquan, Xue Tao, et al. Effects of Cerium Addition on the Microstructure and Mechanical Properties of Al-10Mg Alloys[J]. Special Casting & Nonferrous Alloys, 2014,34(1):89-92. DOI： 10.15980/j.tzzz.2014.01.023.

摘要

研究了添加稀土Ce及固溶处理对Al-10Mg合金显微组织及力学性能的影响。添加Ce能够细化Al-10Mg合金的铸态组织

并形成Al4Ce相

固溶处理可使Al3Mg2相溶解。随Ce添加量的增加

Al4Ce相由弥散分布的颗粒状、短杆状形态转变为粗大连续的枝状形态。综合考虑

添加0.4%的Ce对提高Al-10Mg合金的力学性能最为有效。

Abstract

Effects of Ce addition and solid solution treatment on the microstructure and mechanical properties of Al-10Mg alloys were investigated.The results indicate that the as-cast microstructure of Al10Mg alloy can be refined as a result of generation of Al4Ce by Ce addition.After solid solution treatment

the Al3 Mg2 phase is almost dissolved intoα-Mg phase.As the increase of Ce

morphology of Al4 Ce phase distributed at grain boundaries is changed from particle-like or short rod-like granular phase to coarse continuous network.Al-10Mg alloy with 0.4%Ce exhibits the satisfied mechanical properties.