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http://dx.doi.org/10.3795/KSME-A.2005.29.10.1315

Effect of Cold Rolling on Fatigue Crack Propagation of TiNi/A16061 Shape Memory Composite  

Lee Jin-Kyung (동의대학교 기계공학과)
Park Young-Chul (동아대학교 기계공학과)
Lee Kyu-Chang (산업과학연구원 신뢰성 평가센터)
Lee Sang-Pill (동의대학교 기계공학과)
Cho Youn-Ho (부산대학교 기계공학부)
Lee Joon-Hyun (부산대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.29, no.10, 2005 , pp. 1315-1320 More about this Journal
Abstract
TiNi alloy fiber was used to recover the original shape of materials using its shape memory effect. The shape memory alloy plays an important role within the metal matrix composite. The shape memory alloy can control the crack propagation in metal matrix composite, and improve the tensile strength of the composite. In this study, TiNi/A16061 shape memory alloy(SMA) composite was fabricated by hot press method, and pressed by a roller for its strength improvement. The four kinds of specimens were fabricated with $0\%,\;3.2\%,\;5.2\%\;and\;7\%$ and volume fraction of TiNi alloy fiber, respectively. A fatigue test has performed to evaluate the crack initiation and propagation for the TiNi/A16061 SMA composite fabricated by かis method. In order to study the shape memory effect of the TiNi alloy fiber, the test has also done under both conditions of the room temperature and high temperature. The relationship between the crack growth rate and the stress intensity factor was clarified for the composite, and the cold rolling effect was also studied.
Keywords
Crack Growth Rate; Shape Memory Effect; Pre-Strain; Fatigue Crack; Stress Intensity Factor;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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