Influence of volume percentage of NanoTiB2 particles on tribological&mechanical behaviour of 6061-T6 Al alloy nano-surface composite layer prepared via friction stir process

作     者：V.Kishan Aruri Devaraju K.Prasanna Lakshmi 

作者机构：Department of Mechanical EngineeringMRCETHyderabadT.S.India Department of Mechanical EngineeringSR Engineering CollegeWarangalT.S.India Department of Mechanical EngineeringCollege of EngineeringJNTU ManthiniT.S.India 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2017年第13卷第1期

页      面：16-21页

核心收录：

学科分类：08[工学] 0806[工学-冶金工程] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0703[理学-化学] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：The author(s) would like to express thanks the authorities of NIT-Warangal  DMRL-Hyderabad and RCI-Hyderabad for provided that the facilities to carried-out my research work. One of the au-thors Dr. A. Devaraju is thankful to the Principal and the manage-ment of S R Engineering College  Warangal-Telangana State  for their constant support during this work 

主　　题：Friction stir process Al alloy Surface nano composites Tensile Tribology 

摘      要：The aim of present study is to analyze the influence of volume percentage(vol.%) of nano-sized particles(TiB_2: average size is 35 nm) on microstructure, mechanical and tribological behavior of 6061-T6 Al alloy surface nano composite prepared via Friction stir process(FSP). The microstructure of the fabricated surface nanocomposites is examined using optical microscopy(OM) and scanning electron microscope(SEM) for distribution of TiB_2 nano reinforcement particles, thickness of nano composite layer formed on the Aluminum alloy substrate and fracture features. The depth of surface nano composite layer is measured as 3683.82 m m along the cross section of stir zone of nano composite perpendicular to FSP. It was observed that increase in volume percentage of TiB_2 particles, the microhardness is increased up to132 Hv and it is greater than as-received Al alloy s microhardness(104 Hv). It is also observed that at 4volume percentage higher tensile properties exhibited as compared with the 2 and 8 vol. %. It is found that high wear resistance exhibited at 4 volume percentage as-compared with the 2 and 8 vol. %. The observed wear and mechanical properties are interrelated with microstructure, fractography and worn morphology.