Materials Reports  2020, Vol. 34 Issue (Z1): 356-360 |
| METALS AND METAL MATRIX COMPOSITES |
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| Effect of Heat Treatment on Microstructure and Wear Characteristic of Al-Cu-Mg/SiCp Braking and Wear-resistant Composites Produced by Hot Pressing |
| ZHANG Yang1,2, ZHANG Haiyan3, CHEN Yunbo1,2,4, WANG Dapeng4, CHEN Lin1,2, LIU Xiaoping3
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1 State Key Laboratory for Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology Group Co., ltd., Beijing 100083, China;
2 Beijing National Innovation Institute of Lightweight Ltd., Beijing 100083, China;
3 Shandong Longji Machinery Co., Ltd., Yantai 265700, China4 School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China |
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Abstract Particles reinforced aluminum matrix composite has been the main candidate material for the braking and wear-resistant components. In this work, Al-Cu-Mg/SiCp composites were well produced by hot pressing method. By means of comparative study on the microstructure of composites with and without heat treatment, as well as the morphology and phase composition of wore surfaces, the variation of the properties, especially the friction and wear characteristics, were analyzed. Further, the possible alterations during the wearing process and its effects were explained. Routed by proper T6 heat treatment, the properties of composites were significantly optimized. The tensile strength was raised from 268 MPa to 387 MPa, which is about 44% improvement, the elongation was changed from 6.0% to 5.6%, which is stable roughly, and the specific wear rate was reduced from 0.153 mm3·(N·km)-1 to 0.095 mm3·(N·km)-1, which is about 38% reduction.
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Published: 01 July 2020
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| Fund:This work was financially supported by the Taishan Industry Leader Project of Shandong Province (2017). |
| About author:: Yang Zhang received his B.E. degree and Ph.D. degree in materials science and engineering from the University of Science and Technology Beijing. Now he is the senior engineer in National Lightweight Materials For-ming Technology and Equipment Innovation Center. His research interests are the advanced aluminum alloy and aluminum matrix composite, containing the special equipment and process. He hosted 4 government sponsored projects including National Natural Science Foundation of China, and 5 business cooperating projects. More than 30 journal papers have been published and 6 national innovation patents have been authorized. He has leaded the team to complete the research of gas assisted pressure infiltration technology, low pressure casting with electromagnetic stirring apparatus, and electromagnetic transmission for vacuum squeeze casting. The developed heat conducting plate with high thermal conductive composites, aluminum matrix composite lightweight brake disc, and squeeze casting axle parts with high ductility aluminum alloys have been used and got good results. In the future, he and his group are willing to strengthen the cooperation with basic manufacturing industry for the lightweight. |
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1 Che Z F, Li J W, Wang L H, et al. RSC Advances,2016,6,67252.
2 Zhao L Z, Zhao M J, Cao X M, et al. Composites Science and Technology,2007,67,3404.
3 庄伟彬,田宗伟,刘广柱,等.材料导报:研究篇,2019,33(11),3762.
4 Rahsepar M, Jarahimoghadam H. Materials Science & Engineering A,2016,671,214.
5 Venkatarman B, Sundararajan G. Acta Metallurgica,1996,44,451.
6 Laden K, Guerin J D, Watremez M, et al. Tribology Letters,2000,8,237.
7 Qu X H, Zhang L, Wu M, et al. Progress in Natural Science: Materials International,2011,21,189.
8 Hu C J, Yan H G, Chen J H, et al. Transaction of Nonferrous Metals Society of China,2016,26,1259.
9 金鹏,肖伯律,王全兆,等.金属学报,2011,47(3),298.
10 李海涛,许广兴,景绿路.轻合金加工技术,2014,42(1),47.
11 历长云,胡玉昆,郑喜军,等.稀有金属材料与工程,2012,41(增刊2),413.
12 Yang D L, Qiu F, Zhao Q L, et al. Materials Science & Engineering A,2017,661,217.
13 王盘新.粉末冶金学,冶金工业出版社,1997.
14 郎玉靖.基于应变诱导析出的热变形细化7050铝合金及其力学行为.博士学位论文,北京科技大学,2012.
15 张洋,车子璠,李建伟,等.人工晶体学报,2014,43(9),2241.
16 Zhang Z Z, Chen Y B, Zhang Y, et al. Journal of Alloys and Compounds,2017,704,260.
17 Richardson R C D. Wear,1967,10,291.
18 Deuis R L, Subramanian C, Yellup J M. Wear,1996,201,132. |
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