TENSILE DEFORMATION AND FRACTURE OF Ti_3Al BASED ALLOY
AI Suhua; GUAN Shaoxuan (State Key Laboratory Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)FENG Zemin; GE Jingyan(Department Science and EngineeringNortheastern University; Shenyang 110006)
Cite this article:
AI Suhua; GUAN Shaoxuan (State Key Laboratory Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)FENG Zemin; GE Jingyan(Department Science and EngineeringNortheastern University; Shenyang 110006). TENSILE DEFORMATION AND FRACTURE OF Ti_3Al BASED ALLOY. Acta Metall Sin, 1995, 31(6): 286-288.
Abstract The tensile properties of Ti3Al based alloy undergone 3 different regimes of solutioning treatment have been examined at room and elevated temperatures. The deformation and fractrure feature of the typical specimens have been observed under SEM and TEM. It is found that the mechanical properties correlated closely with the changes of fracture surface and dislocation configuration. With increasing testing temperature the strength decreased and the ductility increased. but with increasing solution temperature the strength increased and the ductility decreased. The cleavage fracture is revealed at room temperature in the three microstructures and the mixed (cleavage and intergranular) fractrue at elevated temperature.
WANG Yu;LIN Dongliang(The Public Laboralory of State Education Commission for High Temperature Materials and High Temperature Tests; Shanghai Jiaotong University; Shanghai 200030); C.C. Law(Materials and Mechanics Engineering; United Technologies Coporalion-Pratt & Whitney; East Hartford; CT 06I08; USA). THERMAL ACTIVATION PARAMETERS OF TENSILE DEFORMATION OF GAMMA TITANIUM ALUMINIDE[J]. 金属学报, 1997, 33(11): 1171-1181.
ZHANG Yue; CHU Wuyang; WANG Yanbin; QIAO Lijie; XIAO Jimei(Universityof Science and Technology Beijing; Beijing 100083); WANG Zhonghuai; BAI Chunli)(Institute of Chemistry; Chinese Academy of Sciences; Beijing 100080). STUDY OF CLEAVAGE FRACTURE SURFACE OF TiAl ALLOYS IN NANOMETER SCALE[J]. 金属学报, 1995, 31(5): 191-196.
