Indexed by:Journal Papers

Date of Publication:2016-01-01

Journal:OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS

Included Journals:SCIE、Scopus

Volume:10

Issue:1-2

Page Number:123-126

ISSN No.:1842-6573

Key Words:Electro deposition; Chromium; Crack; Metallograph; Grain growth

Abstract:Homogeneous, crystallized and crack-free chromium (Cr) coating was electrodeposited on stainless steel at 85 degrees C with a current density of 80 A/dm(2), 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 alpha-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.