| 硼酸铝晶须增强铝基复合材料的显微组织、力学性能和磨损性能（英文） |
| |
| 引用本文： | Neeraj PANDEY,I.CHAKRABARTY,Kalpana BARKANE,N.S.MEHTA,M.R.MAJHI. 硼酸铝晶须增强铝基复合材料的显微组织、力学性能和磨损性能（英文）[J]. 中国有色金属学会会刊, 2020, 30(7): 1731-1742. DOI: 10.1016/S1003-6326(20)65334-1 |
| |
| 作者姓名： | Neeraj PANDEY I.CHAKRABARTY Kalpana BARKANE N.S.MEHTA M.R.MAJHI |
| |
| 作者单位： | 1. Department of Ceramic Engineering,Indian Institute of Technology(BHU);2. Department of Metallurgical Engineering,Indian Institute of Technology(BHU) |
| |
| 摘 要： | 通过传统的粉末冶金技术制备不同含量硼酸铝晶须(ABOw)(5%, 10%, 15%,质量分数)增强的商业纯铝基复合材料,并对其显微组织特征和力学性能进行研究。采用粉末冶金方法有效混合铝粉和ABOw,将混合粉冷压后在600℃下烧结。通过光学显微镜(OM)、扫描电子显微镜(SEM)、能谱分析(EDS)、透射电子显微镜(TEM)和X射线衍射(XRD)对烧结后的复合材料进行显微组织表征,测定复合材料的孔隙率随ABOw含量的变化,研究ABOw含量变化对复合材料的力学性能,包括硬度、抗弯强度和抗压强度的影响,及复合材料在恒定载荷下、不同滑动距离下的干滑动磨损行为。结果表明,当ABOw含量为10%(质量分数)时,复合材料具有最大的抗弯强度和抗压强度,分别为172 MPa和324 MPa,并且硬度得到改善,约为HV 40.2。但是,随着ABOw含量的进一步增加,性能降低。含10%ABOw复合材料的耐磨性能也得到显著提高。Al-10%ABOw复合材料优异的综合性能归因于其具有良好的界面结合性能、低的孔隙率和好的组织均匀性。
|
| 关 键 词： | 铝基复合材料 粉末冶金 硼酸铝晶须增强相 抗弯强度 压缩试验 干滑动磨损 |
| 收稿时间： | 2019-11-30 |
Microstructure,mechanical and wear properties of aluminum borate whisker reinforced aluminum matrix composites |
| |
| Affiliation: | 1. Department of Ceramic Engineering, Indian Institute of Technology (BHU), Varanasi, U.P., India;2. Department of Metallurgical Engineering, Indian Institute of Technology (BHU), Varanasi, U.P., India;1. National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;2. School of Mechanical and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, China;3. GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China;4. Institute of Materials for Mobile Energy, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;1. Department of Mechanical Engineering, Shree Venkateshwara Hi-Tech Engineering College, Gobi, Erode 638455, India;2. Department of Mechanical Engineering, Coimbatore Institute of Engineering and Technology, Coimbatore 641 109, India;3. Department of Mechatronics, Bannari Amman Institute of Technology, Sathyamangalam, Erode 638401, India;1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, China;2. School of Materials Science and Engineering, Guangxi University, Nanning 530004, Guangxi, China;3. Center for Petroleum and Geosystems Engineering, The University of Texas at Austin, 200 E. Dean Keeton Stop C0304, Austin, TX 78712-1585, United States.;1. College of Materials Science and Engineering, Hunan University, Changsha, 410082, PR China;2. College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China;1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, 430081 Wuhan, PR China;2. National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan University of Science and Technology, 430081 Wuhan, PR China;3. School of optical information and energy engineering, Wuhan Institute of Technology, 430081 Wuhan, PR China |
| |
| Abstract: | The microstructural features and the consequent mechanical properties were characterized in aluminium borate whisker (ABOw) (5, 10 and 15 wt.%) reinforced commercially-pure aluminium composites fabricated by conventional powder metallurgy technique. The aluminium powder and the whisker were effectively blended by a semi-powder metallurgy method. The blended powder mixtures were cold compacted and sintered at 600 °C. The sintered composites were characterized for microstructural features by optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis. Porosity in the composites with variation in ABOw contents was determined. The effect of variation in content of ABOw on mechanical properties, viz. hardness, bending strength and compressive strength of the composites was evaluated. The dry sliding wear behaviour was evaluated at varying sliding distance at constant loads. Maximum flexural strength of 172 MPa and compressive strength of 324 MPa with improved hardness around HV 40.2 are obtained in composite with 10 wt.% ABOw. Further increase in ABOw content deteriorates the properties. A substantial increase in wear resistance is also observed with 10 wt.% ABOw. The excellent combination of mechanical properties of Al−10wt.%ABOw composites is attributed to good interfacial bonds, less porosity and uniformity in the microstructure. |
| |
| Keywords: | aluminum matrix composite powder metallurgy aluminum borate whisker (ABOw) reinforcement flexural strength compression test dry sliding wear |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
