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http://dx.doi.org/10.5228/KSPP.2003.12.4.376

An Investigation of Microstructural Evolution and Sliding Wear Behavior of Ultra-Fine Grained 5052 Aluminum Alloy Fabricated by an Accumulative Roll-Bonding Process  

하종수 (국민대학교 신소재공학부)
강석하 (국민대학교 신소재공학부)
김용석 (국민대학교 신소재공학부)
Publication Information
Transactions of Materials Processing / v.12, no.4, 2003 , pp. 376-381 More about this Journal
Abstract
Microstructural evolution and dry sliding wear behavior of ultra-fine grained 5052 Al alloy obtained by an accumulative roll-bonding process have been investigated. After 7 ARB cycles, ultra-fine grains with a large misorientation between neighboring grains were obtained. The grain size was about 0.2 $\mu$m. The hardness, tensile and yield strengths of the ultra-fine grained alloy increased as the amount of accumulated strain increased with the ARB cycles. Sliding wear tests of the ultra-fine grained 5052 Al alloy were conducted at room temperature. Wear rate of the ultra-fine grained alloy increased in spite of the increase of hardness. Surface of the worn specimens were examined with SEM to investigate wear mechanism of the ultra-fine grained alloy.
Keywords
Ultra-Fine Grain; 5052 Al Alloy; Accumulative Roll-Bonding(ARB); Sliding Wear;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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