Martensite Transformation of 50Ni-xHf(50-x)Ti Shape Memory Alloys

机译：50Ni-xHf（50-x）Ti形状记忆合金的马氏体相变

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The characteristics of martensite transformation in NiTi-Hf alloys, such astransformation temperature, enthalpy and entropy changes, hysteresis width, Young's modulus and damping, and martensite structure, are investigated in this paper. The results indicate that: (1) The martensite of the NiTi-Hf alloys is thermoelastic martensite. (2) The transformation temperatures and thermodynamic parameters depend on the Hf content. (3) The crystal structure of the high temperature parent phase is of the CsCl-type, regardless of the alloy composition. The primary product of the martensite transformation at room temperature for alloys with x < 6 is monoclinic B19' martensite, while for 20< x <30 at%, the crystal structure is orthorhombic B19. jg p3.

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Wu, K. H.; Pu, Z. J.;
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年度 1995
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总页数 8
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正文语种 eng
中图分类工业技术;
关键词
Nickel alloys; Titanium alloys; Transformations; Martensite; Hafnium alloys; Reprints; Temperature; Crystal structure; Parameters; Thermodynamics; High temperature; Modulus of elasticity; Damping; Alloys; Cesium; Room temperature; Chlorides; Composition(P;

机译：镍合金;钛合金;转变;马氏体;铪合金;重印;温度;晶体结构;参数;热力学;高温;弹性模量;阻尼;合金;铯;室温;氯化物;组成（p;

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机译：快速凝固的Ti_（50-x）Ni_（25）Cu_（25）Zr_x形状记忆合金的马氏体相变和组织
2. In situ TEM observations of martensite-austenite transformations in a Ni49Ti36Hf15 high temperature shape memory alloy [J] . Liu M., Liu L., Li YY., Journal of Materials Science Letters . 2000,第15期

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3. Two-way shape memory effect induced by martensite deformation and stabilization of martensite in Ti_(36)Ni_(49)Hf_(15) high temperature shape memory alloy [J] . X.L. Meng, W. Cai, Y.F. Zheng, Materials Letters . 2003,第26a27期

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5. MARTENSITE TRANSFORMATION AND SHAPE MEMORY EFFECT IN NICKEL - TITANIUM ALLOY. [D] . MOHAMED, HANI ABO EL-FOTOH. 1976

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Martensite Transformation of 50Ni-xHf(50-x)Ti Shape Memory Alloys

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