Abstract Thermal expansion of martensite in Ti29.7Ni50.3Hf20 alloy was investigated by in situ neutron diffraction. It is found that the martensite exhibits a strong anisotropy in thermal expansion. The principal crystallographic axes and the coefficients of thermal expansion were determined.

中文翻译：

---

Ti29.7Ni50.3Hf20形状记忆合金中马氏体的热膨胀

摘要 采用原位中子衍射研究了Ti29.7Ni50.3Hf20合金中马氏体的热膨胀。发现马氏体在热膨胀方面表现出强烈的各向异性。确定了主晶轴和热膨胀系数。