Production of rapidly solidified Cu-Sn ribbons by water jet cooled rotating disc method


ÖZTÜRK S. , ÖZTÜRK B. , ERDEMİR F. , USTA G.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, vol.211, no.11, pp.1817-1823, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 211 Issue: 11
  • Publication Date: 2011
  • Doi Number: 10.1016/j.jmatprotec.2011.06.001
  • Title of Journal : JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
  • Page Numbers: pp.1817-1823

Abstract

In order to obtain rapidly solidified ribbons, it is important to control and understand the mechanism of ribbon formation. In this study, rapidly solidified Cu-Sn ribbons were produced by water jet cooled rotating disc method. The produced ribbons had typically 15-95 mu m thickness, 3-6 mm width and 45-72 mm length depending on process parameters. Increasing the disc speed from 50 to 75 m s(-1) resulted in a decrease of ribbon thickness from 75 to 34 mu m. From the disc-side to the air-side surface of the ribbons, the microstructure of the ribbons consisted of three distinct zones: fine grained microstructure (chill region), columnar zone and cellular/equiaxed region. The columnar zone/ribbon thickness ratio decreased with increasing ribbon thickness. The estimated cooling rates of 20 and 90 mu m thick ribbons were 1.98 x 10(6) and 5.49 x 10(3) K s(-1), respectively.(C) 2011 Elsevier B.V. All rights reserved.