本文選題：NiTi-NbTi復(fù)合材料 + 形狀記憶合金�。� 參考：《中國(guó)有色金屬學(xué)報(bào)》2017年04期

【摘要】：為改善記憶合金復(fù)合材料中各復(fù)合組元間的耦合作用,利于材料功能特性的展現(xiàn),原位合成一種NiTi-NbTi記憶合金復(fù)合材料。通過(guò)對(duì)NiTi-NbTi復(fù)合材料進(jìn)行約束態(tài)熱循環(huán)的方式,使樣品中回復(fù)力達(dá)到應(yīng)力誘發(fā)馬氏體相變的臨界應(yīng)力,拉伸復(fù)合材料時(shí)NiTi直接相變,進(jìn)而降低復(fù)合材料整體的表觀彈性模量。拉伸結(jié)果表明:對(duì)于同種NiTi-NbTi復(fù)合材料,同樣在120℃的拉伸溫度下,未經(jīng)歷約束態(tài)熱循環(huán)的樣品表觀彈性模量為64.5GPa,而經(jīng)歷約束態(tài)升、降溫?zé)嵫h(huán)樣品的表觀彈性模量為55.2 GPa,彈性模量變化率為14.4%。
[Abstract]:In order to improve the coupling between the composite components in the memory alloy composites and to exhibit the functional properties of the composites, an in-situ NiTi-NbTi memory alloy composite was synthesized. By means of confined thermal cycling of NiTi-NbTi composite, the recovery force in the sample reaches the critical stress of stress-induced martensite transformation, and the direct phase transition of NiTi in tensile composite reduces the apparent elastic modulus of the whole composite. The tensile results show that for the same NiTi-NbTi composites, the apparent modulus of elasticity is 64.5 GPA, but increases in the confined state at the same tensile temperature of 120 鈩，

本文編號(hào)：1882589