Microstructure, phase transformation and wear behavior of Cu–10%Al–4%Fe alloy processed by ECAE

✍ Scribed by L.L. Gao; X.H. Cheng

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 960 KB
• Volume: 473
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/j.msea.2007.03.072

✦ Synopsis

The aim of this study is to determine optimum processing conditions of equal channel angular extrusion (ECAE) for a two-phase alloy and to investigate the effect of ECAE on microstructure, phase transformation and tribological properties of the alloy. A commercial aluminum bronze alloy (Cu-10%Al-4%Fe) produced by hot-rolling was subjected to ECAE process at 550, 600 and 650 • C, respectively. Experimental results showed that the extrusion temperature must be higher than the eutectoid reaction temperature of the alloy. Optical microscope was used to study the microstructure of the alloy. The grains of the alloy were refined after ECAE and gradually reduced with the increase of pass number of ECAE. The mechanical and tribological properties of the alloy were significantly improved after ECAE. In addition, phase transformation temperature of the alloy decreased after ECAE process.