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형상기억복합재료에 있어서 형상기억효과에 의한 피로균열전파특성에 관한 연구
박영철(Y.C.Park),윤두표(D.P.Yun),신인수(I.S.Sin),이준희(J.H.Lee),김순국(S.K.Kim),이규창(G.C.Lee) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_2
In this study. It is introduced that TiNi/Al shape memory composite as one of new material that used shape memory alloy(SMA). It is a method to produce a better strength of composite by occurring compressive residual stress in matrix. Using shape memory effect of TiNi fiber. The shape memory composites are made by powder metallurgy. Moreover. TiNiCo/Al composite is made by using TiNiCo alloy as fiber. And it is discussed the properties of fatigue crack propagation in the shape memory composite. <br/> The results of fatigue test of a shape memory composite. The fatigue strength of a shape memory composite increase in proportion to adding of wolume fraction of TiNi(Co) fiber at 363K. This fiber reinforced effect is related to the increase of volume fraction and pre-strain.<br/>