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Temperature effect on crack density and crystalline phase of electrodeposited chromium

JUN-GANG ZHENG1, XU-DONG ZUO2, CHENG-WEI WU2, WEI ZHANG2,*

Affiliation

  1. School of Science, Shenyang Jianzhu University , Shenyang 110168 , China
  2. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

Abstract

Homogeneous, crystallized and crack-free chromium (Cr) coating was electrodeposited on stainless steel at 85 oC with a current density of 80 A/dm2, evidenced by the surface and cross section metallographs of the coating. X-ray diffraction analyses indicate the coating is largely composed of body centred cubic -Cr. The effect of temperature on the generation of cracks, surface hardness and cathodic current efficiency were also investigated. The reduction in crack density with increasing temperature may be interpreted in terms of the decreasing inhibition of lateral grain growth..

Keywords

Electro deposition, Chromium, Crack, Metallograph, Grain growth.

Citation

JUN-GANG ZHENG, XU-DONG ZUO, CHENG-WEI WU, WEI ZHANG, Temperature effect on crack density and crystalline phase of electrodeposited chromium, Optoelectronics and Advanced Materials - Rapid Communications, 10, 1-2, January-February 2016, pp.123-126 (2016).

Submitted at: Oct. 21, 2013

Accepted at: Feb. 10, 2016