个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:哈尔滨工业大学
学位:博士
所在单位:材料科学与工程学院
学科:材料加工工程
办公地点:铸造中心101
联系方式:0411-84706220
电子邮箱:jiejc@dlut.edu.cn
Effect of annealing treatment on the microstructures, mechanical, and wear properties of a manganese brass alloy
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论文类型:期刊论文
发表时间:2016-05-28
发表刊物:JOURNAL OF MATERIALS RESEARCH
收录刊物:SCIE、EI
卷号:31
期号:10
页面范围:1491-1500
ISSN号:0884-2914
摘要:The effect of annealing treatment on the microstructures, mechanical, and wear properties of a CuZnAlMnSiNiCr brass alloy is investigated. The results indicate that nanosized Mn5Si3 particles are observed to precipitate from the phase at temperatures above 750 degrees C. After annealing at 800 degrees C for 4 h, the formation of finely, coherent precipitates dispersed within the matrix results in the great improvement of strength, hardness and thus the high wear resistance, which can be proven by the decreased wear rates and friction coefficients. According to the examination of the wear topography, adhesive, abrasive, and oxidative wear are found to be the major wear forms during the dry sliding wear. After the precipitation-hardening treatment, the adhesion and abrasion decrease, and few spallings and cracks are observed on the worn surfaces. In addition, the wear behavior of the alloy is found to be strongly dependent on its strength and hardness.