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- Title
Effect of Trace B on the Microstructure and Mechanical Properties of a Newly Near α High Temperature Titanium Alloy.
- Authors
Guo, Chongxiao; Zhang, Changjiang; Han, Jianchao; Zhang, Shuzhi; Yang, Fei; Chai, Lihua; Chen, Ziyong
- Abstract
In this study, the microstructural evolution and mechanical properties of a newly near α titanium alloy with trace additions of B by in situ casting route are investigated. The results show that the coarse prior β grain and α lath within matrix alloy are gradually refined with increasing of B addition. The relative refinement mechanism of prior β grain and α lath width is analyzed and discussed. In addition, it is shown that both of ultimate compressive strength (UCS) and yield strength (UYS) increase with B addition, which is mainly attributed to microstructural refinement. However, the compressive ductility and fracture toughness decrease with increasing of B addition, which is due to the cracking of TiB, leading to the acceleration of crack extension.
- Subjects
TITANIUM alloys; MICROSTRUCTURE; MECHANICAL behavior of materials
- Publication
Advanced Engineering Materials, 2017, Vol 19, Issue 12, pn/a
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.201700490