材料期刊网

EFFECT OF β-FLECKS ON MECHANICAL PROPERTIES OF Ti-10V-2Fe-3Al ALLOY

ZHOU Yigang YU Hanqing ZENG Weidong Northwestern Polytechnical University , Xi'an , ChinaTANG Jialin China South Aviation Motive Power and Machinery Company , Zhuzhou , China professor , Department of Materials Science and Engineering , Northwestern Polytechnical University , Xi'an 710072 , China

金属学报(英文版)

Effect of β-flecks on properties of tensile elongation and low cycle.fatigue life at room tern. perature for Ti-10V-2Fe-3Al alloy has been investigated.The cracks along initial β-grain boundaries in the β-fleck region may propagate to form intergranular brittle fracture.Under alternating load,the β-fleck often becomes a fatigue origin.While under higher strain,the cracks initiate and propagate to fracture early at the original β-grain boundaries in β-fleck region and at α-grain boundaries.

关键词: Ti-10V-2Fe-3Al alloy , null , null , null

Microstructure and Deformation Behavior of Ti-10V-2Fe-3Al Alloy during Hot Forming Process

GUAN Renguo , ZHAO Zhanyong , Choi KS , Lee CS

武汉理工大学学报-材料科学版(英文版) doi:10.1007/s11595-015-1317-0

关键词:

β斑点对Ti-10V-2Fe-3Al合金性能的影响

周义刚 , 俞汉清 , 曾卫东 , 唐加林

金属学报

研究了β斑点对Ti-10V-2Fe-3Al合金的室温拉伸性能和低周疲劳性能的影响,发现在β斑点区内,裂纹沿原始β晶界扩展形成沿晶脆性断裂,在交变应力作用下,β斑点往往成为疲劳源点,在高应变下,β斑区内的原始β晶界和晶界α处萌生裂纹并导致早期断裂。

关键词: Ti—10V—2Fe—3Al合金 , β-fleck , tensile property , low cycle fatigue life