Microstructure and corrosion behavior of Al-TiB2/TiC composites processed by hot rolling

被引：28

作者：

Nie, Jinfeng ^{[1
]}

Wang, Fang ^{[1
]}

Chen, Yuyao ^{[1
]}

Mao, Qingzhong ^{[1
]}

Yang, Huabing ^{[2
]}

Song, Zhiwei ^{[1
]}

Liu, Xiangfa ^{[2
]}

Zhao, Yonghao ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nano & Heterogeneous Mat Ctr, Nanjing 210094, Jiangsu, Peoples R China

[2] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China

来源：

RESULTS IN PHYSICS | 2019年 / 14卷

基金：

中国国家自然科学基金;

关键词：

Al alloys; TiC; TiB2; Microstructure; Corrosion; Rolling; METAL-MATRIX COMPOSITES; MECHANICAL-PROPERTIES; TIC NANOPARTICLES; ALUMINUM; ALLOY; RESISTANCE; MICROHARDNESS; COATINGS;

D O I：

10.1016/j.rinp.2019.102471

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure and corrosion behavior of Al-5 wt.% TiB2/TiC composites after hot rolling treatment were investigated by scanning electron microscope, immersion tests, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) in 3.5 wt.% NaCl solution. The results show that corrosion of alpha-Al phase initiates at the interfaces between the matrix and the agglomeration clusters of TiB2 and TiC particles. After hot rolling deformation, the dispersive distribution of reinforcement particles and the grain refinement of the Al matrix suppressed the rapid expansion of corrosion pits, which become smaller and shallower, indicating that the corrosion resistance of Al-TiB2/TiC composites has been enhanced by hot rolling treatment.

引用

页数：7

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