摘要
研究了全层片状组织Ti-Al基合金的室温拉伸性能与品团尺寸的关系Ti-Al基合金的室温拉伸屈服强度和断裂强度与晶团尺寸成 Hall-Petch关系.当合金中添加替代元素 Cr和 Nb时、具 Hall-Petch斜率下变:而添加间隙元素 C和 B时。
The dependence of the room temperature tensile properties of Ti-Al based alloys with fully lamellar microstructure on colony size was studied. The tensile strength and yield strength show Hall-Petch dependences on colony size. Adding substitutional elements, Cr and Nb, leads to no apparent change in the Hall-Petch slope, but adding interstitial elements, C and 13, results in obviously increasing of the slope. The ductility does not obey a Hall-Petch dependence on colony size.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第4期365-368,共4页
Acta Metallurgica Sinica
基金
国家自然科学基金 59895150
国家 863高技术基金 715-005-0040资助项目~~