Tensile and fracture properties of Ti-62A alloy plate with different microstructures

Ti-62A alloy plates with three different types of microstructure,fully equiaxed,bimodal,and Widmanst(a)tten,were obtained by various heat treatments to investigate the effects of microstructure on the tensile and fracture properties at room temperature.The results reveal that Widmanst(a)tten microst...

Full description

Saved in:
Bibliographic Details
Published in:Rare metals 2012-10, Vol.31 (5), p.420-423
Main Authors: Liu, Rui, Hui, Songxiao, Ye, Wenjun, Yu, Yang, Fu, Yanyan, Song, Xiaoyun, Deng, Xiguang
Format: Article
Language:English
Subjects:
Alloy plating
Biomaterials
Chemistry and Materials Science
Crack propagation
Energy
Fatigue failure
Fracture mechanics
Materials Engineering
Materials Science
Metallic Materials
Microstructure
Nanoscale Science and Technology
Physical Chemistry
Scanning electron microscopy
Titanium base alloys
Widmanstatten structure
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ti-62A alloy plates with three different types of microstructure,fully equiaxed,bimodal,and Widmanst(a)tten,were obtained by various heat treatments to investigate the effects of microstructure on the tensile and fracture properties at room temperature.The results reveal that Widmanst(a)tten microstructure exhibits good damage tolerance behavior considering strength,fracture toughness,and fatigue crack growth behavior,while the bimodal microstructure shows good comprehensive properties considering the plasticity synthetically.Optical microscopy (OM) and scanning electron microscopy (SEM) microstructure analyses on fracture and fatigue crack path demonstrate that the dependence of mechanical properties and fatigue crack growth behavior on microstructural feature are attributed to the α lamellae width and the α colony size.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-012-0531-6