用示差扫描热分析仪（ＤＳＣ）和光学显微镜系统研究了Ｎｉ含量对ＴｉＮｉ形状记忆合金Ｒ相和Ｍ相相变温度（Ｔ＿Ｒ，Ｔ＿Ｍ），相变热（△Ｈ＿Ｒ，△Ｈ＿Ｍ），热滞（△Θ＿Ｒ，△Θ＿Ｍ）的影响。结果表明：在加热和冷却过程中，Ｔｉ－３３．３％Ｎｉ和Ｔｉ－７５．０％Ｎｉ（均为原子分数，％）不发生相变；Ｔ＿Ｍ，△Θ＿Ｍ，△Ｈ＿Ｍ和△Ｈ＿Ｒ是Ｎｉ含量的函数；Ｔ＿Ｒ和△Θ＿Ｒ基本为一定值，与Ｎｉ含量无关。
The effects of Ni content on the transformation temperature (T_R,T_M), transformation heat (△H_R,△H_M), hysteresis(△Θ_R,△Θ_M) of martensite (M) and rhomboheddrel (R)transformation in Ti-(33.3-75.0)% Ni alloys have been investigated systematically by DSC and optical microscopy. It has been confirmed that there are no transformations during cooling and heating processes in Ti_2Ni(Ti-33.3%Ni) and TiNi_3(Ti-75.0%Ni) alloys; T_M, △Θ_M,△H_M and △H_R are functions of Ni content; T_R and △Θ_R are constant and almost independent of Ni content. Correspondent: HE Zhirong, associate professor,(Department of Mechanical Engineering, Shaanxi Institute of Technology, Hanzhong 721003)
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | 形状记忆合金用途开发委员会．形状记忆合金使方,东京:日刊工业新闻社,1987:102田中,户伏,宫崎.形状合金的机械的性质.东京:养贤堂,1993:24,26,583MiyazakiS,OtsukaK．MetallTrans,1986 |
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