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, cilt.211, sa.11, ss.1817-1823, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 211 Sayı: 11
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.jmatprotec.2011.06.001
  • Dergi Adı: JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1817-1823
  • Anahtar Kelimeler: Rotating disc, Rapid solidification, Microstructure, Ribbon production, MECHANICAL-PROPERTIES, MICROSTRUCTURE
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

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.