B对ZM5镁合金凝固组织和硬度的影响

刘俊英; 刘栩瑞

doi:10.15980/j.tzzz.2019.07.028

轻有色合金 | 浏览量 : 0 下载量: 80 CSCD: 0

导出
分享
收藏
专辑

B对ZM5镁合金凝固组织和硬度的影响
Effects of B on Microstructure and Mechanical Properties of the ZM5 Magnesium Alloy
2019年39卷第7期页码：805-807
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.07.028

扫描看全文

[1]刘俊英,刘栩瑞.B对ZM5镁合金凝固组织和硬度的影响[J].特种铸造及有色合金,2019,39(07):805-807.

Liu Junying, Liu Xurui. Effects of B on Microstructure and Mechanical Properties of the ZM5 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2019,39(7):805-807.
[1]刘俊英,刘栩瑞.B对ZM5镁合金凝固组织和硬度的影响[J].特种铸造及有色合金,2019,39(07):805-807. DOI： 10.15980/j.tzzz.2019.07.028.

Liu Junying, Liu Xurui. Effects of B on Microstructure and Mechanical Properties of the ZM5 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2019,39(7):805-807. DOI： 10.15980/j.tzzz.2019.07.028.

摘要

向ZM5镁合金中添加B元素

主要考察了B对合金凝固组织和硬度的影响。结果表明

B对ZM5镁合金具有良好的细化作用。随着B含量的增加

合金的晶粒尺寸逐渐减小。当B含量为0.03%时

ZM5镁合金的平均晶粒尺寸仅为76μm

相比未细化时降低了72.2%。B与Al形成AlB2化合物

其能够作为异质形核核心细化ZM5镁合金晶粒。随着B含量的增加

ZM5镁合金的硬度逐渐增加

当B含量为0.03%时

合金的硬度相比未细化时提高了23.2%。

Abstract

The effects of B addition on microstructure and properties of the ZM5 magnesium alloy were investigated.The results show that the B element presents the satisfied grain refinement effects.With increasing in B addition

grain size in the alloy is decreased gradually.With 0.03% B addition

the average grain size of ZM5 magnesium alloy is only 76μm

which is decreased by 72.2%compared with that of the unrefined ones

which is attributed to the generation of AlB2 compound with Al and B to act as heterogeneous nuclei to refine grain size in the alloy.With increasing in B additions

the hardness of ZM5 magnesium alloy is further increased.With 0.03% B addition

the hardness of ZM5 magnesium alloy is increased by 23.2%compared with that of the unrefined ones.