On the Influence of Thermal History on the Martensitic Transformation in Ti-24Nb-4Zr-8Sn (wt%)

被引：17
作者：
Church, N. L. [1 ]
Talbot, C. E. P. [1 ]
Jones, N. G. [1 ]
机构：
[1] Univ Cambridge, Dept Mat Sci & Met, 27 Charles Babbage Rd, Cambridge CB3 0FS, England
来源：
SHAPE MEMORY AND SUPERELASTICITY | 2021年 / 7卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
Superelasticity; Thermal cycling; Transformation temperature; TiNb alloys; SHAPE-MEMORY BEHAVIOR; MECHANICAL-PROPERTIES; SUPERELASTIC PROPERTIES; PHASE-TRANSFORMATIONS; TITANIUM-ALLOYS; YOUNGS MODULUS; TI; ALPHA''; OMEGA; SN;
D O I：
10.1007/s40830-021-00309-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Metastable beta titanium alloys, such as Ti-24Nb-4Zr-8Sn, have potential for application in vibration damping systems due to their ability to display superelastic behaviour. However, their use is currently limited due to large variations in the temperature range over which this behaviour is stable, which can additionally be shown to depend on the thermal history of the sample. This study demonstrates the sensitivity of the microstructure to thermal history and highlights a possible cause for this variability. Currently held theories of omega formation supressing the martensitic transformation have been called into question and an alternative mechanism based on a total stress approach has been suggested. Understanding this variability enables better design of alloys and processing routes in order to achieve materials with the desired properties required for industrial application.
引用
收藏
页码：166 / 178
页数：13
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