Effect of Aging Temperature on Microstructure and Mechanical Property of Aluminium Brass

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Zhang, Dongya^1,2 ; Li, Yi^1,2 ; Feng, Kun^1,2 ; Zhu, Pengxiao^1,2 ; Xu, Guo^1,2

Jiangsu XCMG Construction Machinery Research Institute Ltd, Xuzhou Construction Machinery Group, Xuzhou, China^1

State Key Laboratory of Intelligent Manufacturing of Advanced Construction Machinery, Xuzhou Construction Machinery Group, Xuzhou, China^2

关键词: Aging temperatures;    Microstructure and mechanical properties;    Minimum value;    Particle phase;    Precipitated phase;    Precipitation phase;    Resistance furnaces;    Wear mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/2/022132/pdf
DOI  :  10.1088/1757-899X/452/2/022132

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Solution treated HA166-6-3-2 aluminium brass was aged at different temperatures by box-type resistance furnace. The effects of aging temperature on the microstructure and mechanical properties of HAl66-6-3-2 aluminium brass were investigated. The results show that the microstructure of aging treated HAl66-6-3-2 aluminium brass is equiaxed β phase, particle phase and dispersed precipitation phase. The precipitated phases appear and gradually increase when the aging temperature is increased. The number of precipitated phase is most at 400°C aging temperature. As the aging temperature increases continuously, the number of precipitated phase decreases and the size of precipitated phase increases, the hardness of aluminium brass presents a trend of rising first and then decreasing, the wear loss of aluminium brass presents a trend of decreasing first and then rising. When the aging temperature is 400°C, the hardness of aluminium brass reaches the maximum value of 320HV1 and the wear loss reaches the minimum value of 0.4065g. Observing the wear profile, the wear mechanism of the alloy is mainly abrasive wear under dry friction conditions.