| 固溶处理对TiB2/6061复合材料硬度及耐磨性的影响 |
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| 引用本文： | 杨海瑞,孙跃军,刘嗣哲,庄伟彬.固溶处理对TiB2/6061复合材料硬度及耐磨性的影响[J].金属热处理,2020,45(6):46-50. |
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| 作者姓名： | 杨海瑞 孙跃军 刘嗣哲 庄伟彬 |
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| 作者单位： | 1. 辽宁工程技术大学 材料科学与工程学院, 辽宁 阜新 123000;2. 辽宁工程技术大学 机械工程学院, 辽宁 阜新 123000 |
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| 基金项目： | 辽宁省教育厅科学研究项目;辽宁工程技术大学第五批生产技术问题创新研究基金;辽宁省自然科学基金 |
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| 摘 要： | 采用氟盐法制备了TiB2质量分数为3%的原位合成TiB2/6061复合材料,研究了固溶温度和固溶时间对复合材料硬度和耐磨性能的影响。结果表明:TiB2颗粒弥散分布在6061铝合金基体中,明显细化6061铝合金基体晶粒。当固溶温度一定时,随固溶时间延长,复合材料的硬度和耐磨性可获得明显提高,但固溶时间在6~10 h时,复合材料的性能变化不显著。当固溶时间一定时,随固溶温度升高,复合材料硬度和耐磨性呈现先上升后下降的趋势。3wt%TiB2/6061复合材料经530 ℃×10 h固溶处理后,硬度和耐磨性能最佳,相较于铸态硬度值提高了79.5％,磨损量减少了59.1%。固溶处理后复合材料的磨损表面犁沟变细变浅,材料脱落现象减少。
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| 关 键 词： | TiB2/6061复合材料 原位合成 TiB2颗粒 固溶处理 硬度 耐磨性能 |
| 收稿时间： | 2019-11-26 |
Influence of solution treatment on hardness and wear resistance of TiB2/6061 composites |
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| Yang Hairui,Sun Yuejun,Liu Sizhe,Zhuang Weibin.Influence of solution treatment on hardness and wear resistance of TiB2/6061 composites[J].Heat Treatment of Metals,2020,45(6):46-50. |
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| Authors: | Yang Hairui Sun Yuejun Liu Sizhe Zhuang Weibin |
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| Affiliation: | 1. College of Materials Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China;2. College of Mechanical Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China |
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| Abstract: | TiB2/6061 composites with 3% TiB2 was prepared by means of fluoride salt method. The effects of solution temperature and solution time on hardness and wear resistance of the composites were studied. The experimental results show that TiB2 particles are dispersed in the 6061 Al alloy matrix, and the 6061 Al alloy matrix grains are significantly refined. As the solution temperature is constant, the hardness and wear resistance of the composites increase obviously with the increase of the solution time. However, as the solution time is 6-10 h, the properties of the composites do not change significantly. As the solution time is constant, the hardness and wear resistance of composites increase first and then decrease with the increase of solution temperature. Compared with as cast 3wt% TiB2/6061 composite, the in-situ synthesized 3wt% TiB2/6061 composite has the best hardness and wear resistance after solution treatment at 530 ℃ for 10 h, and the hardness of the composite is increased by 79.5% and the wear loss is decreased by 59.1%. After solution treatment, the plough grooves on the worn surface of the composites become finer and shallower, and the material shedding phenomenon decreases. |
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| Keywords: | TiB2/6061 composites in-situ synthesized TiB2 particles solution hardness wear resistance |
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