Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


한국표면공학회지 (25권4호 181-186)

A study on the development of solution for the Crack Free Hard Chromium Deposits

Crack free 경질 크롬 도금욕 개발에 관한 연구


충남대학교 금속공학과;
충남대학교 금속공학과;


To investigate how to produce the crack free and chromium deposits, bath compositions, additives, electrolysis conditions and other electroplating parameters, such as cathodic current efficiency, surface hard-ness, crack density and corrosion rate of deposits were examined carefully. The crack free chrome deposits were well obtained using both wetting agents and two kind of additives. At 60 A/d$m^2$, $60^{circ}C$ electrolysis condition, crack free bright hard chromium deposits were well obtained to a thickness $300mu extrm{m}$ in Additive-I and Additive-II added solution.