Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5455024 | Materials Characterization | 2016 | 9 Pages |
Abstract
For Ti-alloy tri-modal microstructure can be obtained by the near-β forging (water quenching, WQ) + high temperature toughening and low temperature strengthening treatment (HLT) method. However in actual production, it is hard to accomplish water quenching after near-β forging immediately. In this paper a short time of air cooling (AC) after near-β forging was introduced to consider the temperature drop during the forgings transferring in actual production. For TA15 alloy the formation process of tri-modal microstructure in near-β forging (AC + WQ) + HLT was studied. Under the given near-β forging condition, the influences of the subsequent toughening and strengthening treatment on the obtained tri-modal microstructure were revealed as well as on the corresponding mechanical properties. Then the reasonable HLT route for tri-modal microstructure with excellent comprehensive properties was determined.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Zhichao Sun, Huili Wu, Qingfeng Sun, He Yang,