Low Temperature Phase Instability of the Gamma Phase in Snln Alloys.

Chu, S. ; Yanar, C. ; Schwartz, A. J. ; Massalski, T. B. ; Laughlin, D. E.

Technical Information Center Oak Ridge Tennessee

关键词: Alloys;    Low temperature;    Instability;    Magnetization;    Thermal analysis;   

RP-ID  :  DE2006875957

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The Sn-rich side of the Sn-In phase diagram has been investigated at temperatures ranging from 77 to 500 K by using X-ray diffraction, thermal analysis, and magnetization measurements. It is confirmed that the (beta)-Sn(In)-phase can remain as a metastable phase down to 77 K within the composition range of 86.3-94 at% of Sn. An isothermal displacive (martensitic) transition of the (gamma) phase to the metastable (beta) phase is suggested as the mechanism of the transformation.