Fatigue and Wear Behavior of Al6061–Graphene Composites Synthesized by Powder Metallurgy

详细信息    查看全文

• 作者：H. G. Prashantha Kumar ; M. Anthony Xavior
• 关键词：Graphene ; Dispersion ; Wear ; Fatigue
• 刊名：Transactions of the Indian Institute of Metals
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：69
• 期：2
• 页码：415-419
• 全文大小：1,335 KB
• 参考文献：1.Umasankar V, Xavior M A, and Karthikeyan S, J Alloys Compd 582 (2014) 386.CrossRef
  2.Ashwath P, and Xavior M A, Procedia Eng 97 (2014) 1027.CrossRef
  3.Bastwros M, Kim G Y, Zhu C, Zhang K, Wang S, Tang X, Wang X, Compos Part B Eng 60 (2014) 111.CrossRef
  4.Baradeswaran A, and Perumal A E, Compos. Part B 56 (2014) 472.CrossRef
  5.Rashad M, Pan F, Tang A, and Asif M, Prog Nat Sci Mater Int 24 (2014) 101.CrossRef
  6.Kumar H G P, and Xavior M A, Procedia Eng, 97 (2014) 1033.CrossRef
  7.Smolyanitsky A, and Tewary V K, J Phys Condens Matter 23 (2011) 355006.CrossRef
  8.Dai G, Mishnaevsky L Jr, Comput Mater Sci 95 (2014) 684.CrossRef
  9.Berman D, Erdemir A, and Sumant A V, Mater Today 17 (2014) 31.CrossRef
  10.ASM International Fatigue Data Book: Light Structural Alloys, November (1995).
  
• 作者单位：H. G. Prashantha Kumar (1)
  M. Anthony Xavior (1)
  
  1. School for Mechanical and Building Sciences, VIT University, Vellore, 632014, India
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science
  Metallic Materials
  Materials Science, general
  Tribology, Corrosion and Coatings
  
• 出版者：Springer India
• ISSN：0975-1645

文摘

Graphene being one of the allotropes of carbon, has attracted and evoked keen interest in recent times as an ideal reinforcement for the composites due its outstanding strength. In the current research work, the fatigue and wear behavior of Al6061–Graphene (varying weight fraction 0.2, 0.4, 0.6 wt%) particulate composite are investigated in comparison with monolithic alloy. Initially dispersion of Graphene is carried out by ultra-sonication followed by ball milling on adding Al6061 alloy powder, consolidated by powder metallurgy process and subjected to sintering under inert gas atmosphere. The investigation on the effect of Graphene flakes on micro hardness, mass loss, coefficient of friction and surface roughness values are done under different loading conditions for the prepared samples and wear tracks are analyzed under a microscope. The possible reasons for crack initiation and subsequent fatigue failure under cyclic loading with stress ratio R = −1(sinusoidal waveform), cyclic frequency 5 Hz and stress amplitude 40–140 MPa at room temperature conditions and the type of wear due to increase in Graphene weight fractions were studied through tests results and SEM characterizations. Keywords Graphene Dispersion Wear Fatigue