Bendability of aluminiumand steel-clad chromium plates

• Published in: Metals and materials (Seoul, Korea) Vol. 4; no. 3; pp. 426 - 431
• Main Authors: Yoshida, Fusahito, Okada, Tatsuo, Itoh, Misao, Harada, Yasunori, Ohmori, Masanobu
• Format: Journal Article
• Language: English
• Published: Seoul Springer Nature B.V 01.05.1998
• Subjects: Residual stress; Stress analysis; Studies
• ISSN: 1225-9438; 1598-9623; 2005-4149
• DOI: 10.1007/BF03187803

The present paper describes how the cladding of chromium plate with dissimilar metals improves the plastic bendability of the chromium. Three-point bending tests at various temperatures were performed for three types of chromium specimens: a monolithic chromium plate, aluminium- and steel-clad chromium plate. The aluminium-clad chromium plate was bent at 343 K up to a bent angle of 90 degrees without failure, even when the chromium layer was located outside of the plate (tension side), while the monolithic chromium plate could be bent exclusively at temperatures above 403 K. When the chromium layer was located inside of the steel-clad chromium plate (compression side), the plate was successfully bent at 307 K. The FE stress analysis of bending proved that the cladding of chromium plates with proper metals of different kinds is effective to reduce the tensile stress in chromium induced during bending and also the residual stress existing after bending operation.[PUBLICATION ABSTRACT]