Al2O3含量对铜基粉末冶金摩擦材料摩擦磨损性能的影响
王天国,梁启超,覃 群
湖北汽车工业学院材料科学与工程学院, 湖北 十堰 442002
Effect of Al2O3 content on friction and wear properties of copper-based powder metallurgy friction materials
WANG Tian-guo,LIANG Qi-chao,QIN Qun
College of Materials Science and Engineering, Hubei University of Automotive Technology, Shiyan 442002, China
摘要 采用粉末冶金方法制备铜基摩擦材料,研究Al2O3的添加量对材料的摩擦磨损性能的影响。结果表明:Al2O3对材料摩擦磨损性能的影响与摩擦速度密切相关;随着Al2O3含量增加,材料的摩擦因数提高,密度降低,硬度增加,磨损量先减小后增大,Al2O3质量分数为9%时,复合材料的摩擦因数较高且稳定,磨损量最小。不含Al2O3的材料摩擦表面出现大量凹坑,磨损严重,随着Al2O3含量提高,凹坑数量减少,弥散分布的Al2O3粒子能强化基体表面强度,从而导致材料磨损量降低。
关键词 :
铜基摩擦材料 ,
粉末冶金 ,
摩擦磨损
Abstract :The effect of Al2O3 content on friction and wear properties of copper matrix composite prepared by powder metallurgy method was investigated. The results demonstrate that the effects of Al2O3 on the friction and wear performance of the materials are closely related to the friction speed. With increasing of Al2O3 content, hardness and friction coefficient of Cu-based friction materials increase, density decreases and the wear extent decreases firstly and then increases subsequently. When Al2O3 content is 9% (mass percent), friction coefficient of the material is high and stable, wear rate is the lowest. The friction surface displays a rough morphology with a number of wide scars when the material does not contain Al2O3. The scars decrease and even disappear with increase of Al2O3 content. The dispersed Al2O3 particles can strengthen the surface hardness of the material, causing the wear rate decreasing.
Key words :
Copper-based friction materials
powder metallurgy
friction and wear properties
收稿日期: 2015-07-30
出版日期: 2016-02-01
基金资助: 湖北省自然科学基金;湖北省教育厅科学技术重点项目
通讯作者:
王天国
E-mail: tgwang1978@sina.com
[1] Atzeni E, Iuliano L. Experimental study on grinding of a sintered friction material [J]. Journal of materials processing technology, 2008, 196: 184-189.[2] Kovalchenko A M, Fushchich S, Danyluk S. The tribological properties and mechanism of wear of Cu-based sintered powder materials containing molybdenum disulfide and molybdenum diselenide under unlubricated sliding against copper [J]. Wear. 2012, 290-291: 106-112. [3] Kato H. Takama M, Iwai Y, et al. Wear and mechanical properties of sintered copper-tin composites containing graphite or molybdenum disulfide. Wear, 2003, 255: 573-578.[4] 符蓉, 宋玉温, 高飞, 等. Cu-SiO2烧结材料的摩擦磨损性能研究[J]. 摩擦学报. 2007, 127(4): 377-381.[5] 刘伯威, 樊毅, 张金生, 等. SiO2和SiC对Cu-Fe基烧结摩擦材料性能的影响[J]. 中国有色金属学报, 2001, 11: 110-113.[6] 姚萍屏, 熊翔, 李世鹏, 等. Fe及SiO2对铜基刹车材料摩擦磨损性能的影响机制[J]. 摩擦学报. 2006, 26(5): 478-483.[7] 杜建华, 冯建林, 计德林, 等. 纳米SiO2含量对铜基摩擦材料摩擦学性能的影响[J]. 粉末冶金技术, 2008, 26(1): 11-14.[8] 王秀飞, 许桂生, 韩娟, 等. 添加ZrO2对铜基摩擦材料摩擦磨损性能的影响[J]. 粉末冶金技术, 2013, 31(1): 22-27.[9] 周海滨, 姚萍屏, 肖叶龙, 等. SiC颗粒强化铜基粉末冶金摩擦材料的表面形貌特征及磨损机理[J]. 中国有色金属学报, 2014, 24(9): 2272-2279.[10] 韩晓明, 符蓉, 高飞, 等. SiO2含量对铜基摩擦材料摩擦行为的影响[J]. 中国有色金属学报, 2009, 19(10): 1848-1853.
[1]
钟海林,陈飞熊,李小明,况春江,王学兵,. 粉末冶金高速钢AHPT15M中碳化物的变化规律研究 [J]. , 2016, 26(02): 23-26.
[2]
刘振明,尹延国,张国涛,尹利广. 复层铁基粉末冶金材料的制备及其摩擦学性能分析 [J]. , 2016, 26(02): 44-49.
[3]
许恩恩,范慧俐,郭志猛,张乐美. 硅灰石纤维与二硫化钼填充改性聚四氟乙烯复合材料的性能研究 [J]. , 2016, 26(01): 51-55.
[4]
谷文金. 粉末冶金汽车DCT同步器齿毂在生产中的问题及解决方案 [J]. , 2016, 26(01): 68-71.
[5]
王荣旗,谢敬佩,吴文杰,王爱琴. CeO2对SiCp/Al-Si复合材料中析出Si影响机理的研究 [J]. , 2016, 26(01): 32-35.
[6]
王晓阳 ,茹红强. Cu-Fe基粉末冶金闸片制动特性的研究 [J]. , 2015, 25(06): 48-52.
[7]
于朝清,易 立,刘雪梅,任小梅,何小林,何 娇. WC材料和器件强韧化的工艺技术研究 [J]. , 2015, 25(04): 42-46.
[8]
曾昭锋. 多元陶瓷增强铜基复合材料的摩擦磨损性能 [J]. , 2015, 25(04): 36-41.
[9]
韩凤麟. 粉末冶金零件生产用润滑剂的性能改进与选择 [J]. , 2015, 25(02): 1-7.
[10]
牟 楠,雷龙林,徐 然,唐 琳,罗丰华. 微细Cr-Fe合金粉对粉末冶金钢组织与性能的影响 [J]. , 2015, 25(02): 25-30.
[11]
马生荣. 铁基粉末冶金齿轮件的感应热处理 [J]. 粉末冶金工业, 2014, 24(06): 58-62.
[12]
闫 闵. 正时齿带轮粉末冶金模设计 [J]. , 2014, 24(06): 63-67.
[13]
徐 坚, 王文焱 , 张豪胤, 谢敬佩 , 李洛利. 元素Cr对粉末冶金Ti-6Al-4V合金组织与性能的影响 [J]. , 2014, 24(06): 11-15.
[14]
刘 剑, 宣天鹏, 戴泽玉, 袁 春. 铁基粉末冶金气门导管烧结温度的研究 [J]. , 2014, 24(06): 37-41.
[15]
韩凤麟. 2014年全球粉末冶金产业发展概况 [J]. , 2014, 24(06): 1-5.