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Asymmetric intermixing and the stress buildup in Ni/Al-typed nanomultilayer with different characteristic scales
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School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an,State-key Lab for Mechanical Behavior of Materials,Xi′an Jiaotong University,Xi′an,School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an,School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an,School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an,School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an,School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an,School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an,School of Mechanical Material Engineering,Shaanxi Key Laboratory of Surface Engineering and Remanufacturing,Xi′an University,Xi′an

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    Abstract:

    In order to detect scale-dependent interfacial evolution of metallic heterostructure during the deposition at room temperature, Ni/Al-typed nanomultilayers were prepared as a function of the periodicity and Ni:Al modulated ratio. Combined with X-ray diffraction, real-time plate curvature measurements by multi-beam optical stress sensor (MOSS) were employed to study the stress buildup so as to speculate interfacial characteristics during the growth process. Experimental results show that, with anisotropic nanocrystalline structure within the sub-layers, the multilayers possess of asymmetrical interfaces, which is a result of dissymmetrical diffusion of Ni to Al lattice near the interface. Specially, for the smallest periodicity with the lowest Ni:Al ratio, above asymmetric intermixing behaviors turns to be aggravated by a promotion effect.

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[Mingxia Liu, Fei Ma, Gengrong Chang, Binfeng He, Fuxing Fu, Fangxia Ye, Lijun Yu, Jun Dai, Kewei Xu. Asymmetric intermixing and the stress buildup in Ni/Al-typed nanomultilayer with different characteristic scales[J]. Rare Metal Materials and Engineering,2017,46(11):3222~3227.]
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History
  • Received:February 18,2017
  • Revised:April 01,2017
  • Adopted:August 02,2017
  • Online: December 13,2017
  • Published: