Thermal stability of TiAl-based intermetallic alloys subjected to high pressure torsion
Thermal stability of TiAl-based intermetallic alloys subjected to high pressure torsion
复制标题
DOI：
10.1016/j.msea.2015.10.121
复制
发表时间：
2016-01
期刊：
影响因子：
6.4
通讯作者：
M. Nikitina;R. Islamgaliev;V. Sitdikov
中科院分区：
文献类型：
--
作者：
M. Nikitina;R. Islamgaliev;V. Sitdikov
研究了TiAl基金属间化合物合金在高压扭转下的组织和热稳定性。通过透射电子显微镜和X射线衍射研究了HPT处理样品的结构特征。为了研究超细晶组织的热稳定性，在150-1000 ° C范围内研究了显微硬度与退火温度的关系。讨论了热处理对HPT处理样品的晶粒结构稳定性和显微硬度的影响。
This paper deals with a study of the structure and thermal stability of intermetallic TiAl-based alloys subjected to high-pressure torsion (HPT). The structural features of the HPT-processed samples have been studied by transmission electron microscopy and X-ray diffraction. In order to study the thermal stability of ultrafine-grained (UFG) structure, the dependence of microhardness on the annealing temperature in a temperature range of 150–1000 °С has been investigated. The effect of heat treatment on the grain structure stability and microhardness of the HPT-processed samples is discussed.