Mg对原位合成5TiB<sub>2</sub>/Al-7Si复合材料冲击性能的影响

任波; 赵瑞锋; 刘忠侠; 刘扭参; 张红松

doi:10.15980/j.tzzz.2018.09.021

复合材料 | 浏览量 : 0 下载量: 60 CSCD: 0

导出
分享
收藏
专辑

Mg对原位合成5TiB₂/Al-7Si复合材料冲击性能的影响
Effects of Mg on the Impact Properties of In-Situ 5TiB₂/Al-7Si Composites
2018年38卷第9期页码：1003-1007
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.09.021

扫描看全文

[1]任波,赵瑞锋,刘忠侠,刘扭参,张红松.Mg对原位合成5TiB_2/Al-7Si复合材料冲击性能的影响[J].特种铸造及有色合金,2018,38(09):1003-1007.

Ren Bo, Zhao Ruifeng, Liu Zhongxia, et al. Effects of Mg on the Impact Properties of In-Situ 5TiB₂/Al-7Si Composites[J]. Special Casting & Nonferrous Alloys, 2018,38(9):1003-1007.
[1]任波,赵瑞锋,刘忠侠,刘扭参,张红松.Mg对原位合成5TiB_2/Al-7Si复合材料冲击性能的影响[J].特种铸造及有色合金,2018,38(09):1003-1007. DOI： 10.15980/j.tzzz.2018.09.021.

Ren Bo, Zhao Ruifeng, Liu Zhongxia, et al. Effects of Mg on the Impact Properties of In-Situ 5TiB₂/Al-7Si Composites[J]. Special Casting & Nonferrous Alloys, 2018,38(9):1003-1007. DOI： 10.15980/j.tzzz.2018.09.021.

摘要

采用混合盐原位反应方法制备了不同TiB

含量的TiB

/Al-7Si复合材料

研究了TiB

含量和Mg含量对复合材料冲击性能的影响。随TiB

或Mg含量的增加

复合材料中的α-Al相和共晶Si细化

但冲击性能均呈下降趋势。未添加TiB

和Mg时

Al-7Si合金的冲击韧度最高

约为14.2J/cm

加入5%的TiB

后

冲击韧度降低至12.6J/cm

再加入1.5%和3%的Mg后

冲击韧度进一步降低至10.9和10.4J/cm

。5TiB

/Al-7Si复合材料断口形貌主要呈韧窝和准解理断裂

具有混合型断口特征。

Abstract

In-situ 5TiB

/Al-7Si composites were fabricated by mixed salt reaction in Al-7Si melt.The effects of TiB

and Mg contents on the impact properties of TiB

/Al-7Si composites were investigated.As the addition of TiB

and Mg element

theα-Al and eutectic Si phases in the composites can be refined

however its impact properties can be weakened.The Al-7Si alloy exhibits the satisfied impact toughness among these composites

and it is about of 14.2J/cm

.With the addition of 5%TiB

the impact toughness of the composites is further reduced to 12.6J/cm

.When the 1.5%or 3%Mg element were added into the 5TiB

/Al-7Si composites

the impact toughness of the composites is reduced to 10.9and 10.4J/cm

respectively.The fracture morphology of 5TiB

/Al-7Si composites is mainly characterized by dimple and quasi-cleavage of a mixed fracture.

关键词

TiB2/Al-7Si复合材料Mg含量冲击性能

Keywords

TiB2/Al-7Si CompositesMg ContentImpact Properties

references

文章被引用时，请邮件提醒。

提交

铸造Al-Mg-Mn合金的显微组织及力学性能

P-Sb复合变质对Al-Si合金组织的影响

Mg对真空-氩气熔炼铸造5356铝合金组织和性能的影响

Mg对原位合成5TiB2/Al-7Si复合材料冲击性能的影响

Effects of Mg on the Impact Properties of In-Situ 5TiB2/Al-7Si Composites

DOI： 10.15980/j.tzzz.2018.09.021

摘要

Abstract

关键词

Keywords

references

Mg对原位合成5TiB₂/Al-7Si复合材料冲击性能的影响

Effects of Mg on the Impact Properties of In-Situ 5TiB₂/Al-7Si Composites