Fabrication and mechanical properties of high purity of Cr 2 AlC coatings by adjustable Al contents
作者: Jingzhou LiuXiao ZuoZhenyu WangLi WangXiaochun WuPeiling KeAiying Wang
作者单位: 1School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
2Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
刊名: Journal of Alloys and Compounds, 2018, Vol.753 , pp.11-17
来源数据库: Elsevier Journal
DOI: 10.1016/j.jallcom.2018.04.100
关键词: Cr-Al-C coatingAl contentMAX phasePhase structureMechanical property
原始语种摘要: Abstract(#br)The effect of Al content on phase structure and mechanical properties of vacuum annealed Cr-Al-C coatings was investigated. Cr-Al-C coatings were deposited by co-sputtering of Cr 2 Al and Al targets in optimized CH 4 /Ar atmosphere. The atomic content of Al was adjusted through the control of Al target current from 0.5 A to 3.0 A, thus Cr-Al-C coatings with different stoichiometric ratios were obtained. After 1.5 h thermal annealing at 750 °C in vacuum, Cr 2 AlC MAX phase was observed from the XRD measurements. The Rietveld refinement of XRD spectra results indicated that the annealed coatings were composed of Cr 2 AlC, Al 8 Cr 5 and Cr 7 C 3 phases with different amounts. With the increase of Al content, the hardness and modulus of the Cr 2 AlC MAX phase coatings varied from...
全文获取路径: Elsevier  (合作)
影响因子:2.39 (2012)