Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4V
The microstructures of Ti6Al4V are complex and strongly affect its mechanical properties and fatigue behavior. This paper investigates the role of microstructure on mechanical and fatigue properties of thin-section Ti6Al4V sheets, with the aim of reviewing the effects of microstructure on fatigue pr...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/7278267 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849415517586063360 |
|---|---|
| author | Y. Fan W. Tian Y. Guo Z. Sun J. Xu |
| author_facet | Y. Fan W. Tian Y. Guo Z. Sun J. Xu |
| author_sort | Y. Fan |
| collection | DOAJ |
| description | The microstructures of Ti6Al4V are complex and strongly affect its mechanical properties and fatigue behavior. This paper investigates the role of microstructure on mechanical and fatigue properties of thin-section Ti6Al4V sheets, with the aim of reviewing the effects of microstructure on fatigue properties where suboptimal microstructures might result following heat treatment of assemblies that may not be suited to further annealing, for example, following laser welding. Samples of Ti6Al4V sheet were subjected to a range of heat treatments, including annealing and water quenching from temperatures ranging from 650°C to 1050°C. Micrographs of these samples were inspected for microstructure, and hardness, 0.2% proof stress, elongation, and fracture strength were measured and attributed back to microstructure. Fractography was used to support the findings from microstructure and mechanical analyses. The strength ranking from high to low for the microstructures of thin Ti6Al4V sheets observed in this study is as follows: acicular α′ martensite, Widmanstätten, bimodal, and equiaxed microstructure. The fatigue strength ranking from high to low is as follows: equiaxed, bimodal, Widmanstätten, and acicular α′ martensite microstructure. |
| format | Article |
| id | doaj-art-698aec915e744e7db7b6f0ce146cad4e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-698aec915e744e7db7b6f0ce146cad4e2025-08-20T03:33:31ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/72782677278267Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4VY. Fan0W. Tian1Y. Guo2Z. Sun3J. Xu4School of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaSchool of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaSchool of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaSchool of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaSchool of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaThe microstructures of Ti6Al4V are complex and strongly affect its mechanical properties and fatigue behavior. This paper investigates the role of microstructure on mechanical and fatigue properties of thin-section Ti6Al4V sheets, with the aim of reviewing the effects of microstructure on fatigue properties where suboptimal microstructures might result following heat treatment of assemblies that may not be suited to further annealing, for example, following laser welding. Samples of Ti6Al4V sheet were subjected to a range of heat treatments, including annealing and water quenching from temperatures ranging from 650°C to 1050°C. Micrographs of these samples were inspected for microstructure, and hardness, 0.2% proof stress, elongation, and fracture strength were measured and attributed back to microstructure. Fractography was used to support the findings from microstructure and mechanical analyses. The strength ranking from high to low for the microstructures of thin Ti6Al4V sheets observed in this study is as follows: acicular α′ martensite, Widmanstätten, bimodal, and equiaxed microstructure. The fatigue strength ranking from high to low is as follows: equiaxed, bimodal, Widmanstätten, and acicular α′ martensite microstructure.http://dx.doi.org/10.1155/2016/7278267 |
| spellingShingle | Y. Fan W. Tian Y. Guo Z. Sun J. Xu Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4V Advances in Materials Science and Engineering |
| title | Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4V |
| title_full | Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4V |
| title_fullStr | Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4V |
| title_full_unstemmed | Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4V |
| title_short | Relationships among the Microstructure, Mechanical Properties, and Fatigue Behavior in Thin Ti6Al4V |
| title_sort | relationships among the microstructure mechanical properties and fatigue behavior in thin ti6al4v |
| url | http://dx.doi.org/10.1155/2016/7278267 |
| work_keys_str_mv | AT yfan relationshipsamongthemicrostructuremechanicalpropertiesandfatiguebehaviorinthinti6al4v AT wtian relationshipsamongthemicrostructuremechanicalpropertiesandfatiguebehaviorinthinti6al4v AT yguo relationshipsamongthemicrostructuremechanicalpropertiesandfatiguebehaviorinthinti6al4v AT zsun relationshipsamongthemicrostructuremechanicalpropertiesandfatiguebehaviorinthinti6al4v AT jxu relationshipsamongthemicrostructuremechanicalpropertiesandfatiguebehaviorinthinti6al4v |