TiSTRIP PROPERTIES FABRICATED BY POWDER ROLLING METHOD

Jae-Keun Hong (), Chae-Hun Lee, Jeoung-Han Kim, Jong-Taek Yeom and Nho-Kwang Park
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Jae-Keun Hong: Special Alloys Group, Korea Institute of Materials Science, #66 Sangnam, Changwon, Gyeongnam 641-831, Korea
Chae-Hun Lee: Special Alloys Group, Korea Institute of Materials Science, #66 Sangnam, Changwon, Gyeongnam 641-831, Korea
Jeoung-Han Kim: Special Alloys Group, Korea Institute of Materials Science, #66 Sangnam, Changwon, Gyeongnam 641-831, Korea
Jong-Taek Yeom: Special Alloys Group, Korea Institute of Materials Science, #66 Sangnam, Changwon, Gyeongnam 641-831, Korea
Nho-Kwang Park: Special Alloys Group, Korea Institute of Materials Science, #66 Sangnam, Changwon, Gyeongnam 641-831, Korea

Surface Review and Letters (SRL), 2010, vol. 17, issue 02, 229-234

Abstract: In the present study, the characteristics of theTipowders fabricated by Hydride–Dehydride (HDH) were analyzed in terms of particle shape, size and size distribution.Tipowders were subjected to roll compaction and their microstructure and green densities were evaluated in terms of particle size, powder morphology, roll gap and rolling speed. Effects of blending elements having different powder sizes on densification properties were analyzed. The strip thickness was proportional to the roll gap up to 0.9 mm and the density of titanium strip was decreased with the increase in roll gap. As the roll speed increased, the strip density and thickness were decreased by using -200 meshTipowder. However, the effect of rolling speed for -400 meshTipowder was not greater than that of -200 mesh powder. The highest density by 93% was achieved by using -400 meshTipowder at 0.1 mm roll gap, however edge cracks and alligator cracks were occurred.

Keywords: Tipowder; powder rolling; roll compaction (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0218625X1001393X

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