Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1575355 | Materials Science and Engineering: A | 2014 | 10 Pages |
Abstract
Hot-isostatic-pressing (HIPping) of pre-alloyed powders is an effective, highly material-efficient, novel manufacturing technique for the preparation of near-to-net shape components. However, the effect of pressure during HIPping on the βâα transformation inherent in titanium alloys is not well understood. This effect on phase transformation was investigated on both powder-based and bulk-based Ti-5Al-5Mo-5V-3Cr (Ti-5553). Microstructure characterisation and phase relationships were investigated using scanning electron microscopy and X-ray diffraction methods. The results show that the modest pressure applied in HIPping (100-200 MPa) can influence the α-β phase transformation in Ti-5553. Possible mechanisms related to these changes in phase transformation and microstructure are discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Lingfei Cao, Xiaodong Wu, Suming Zhu, Junfa Mei, Xinhua Wu, Colleen Bettles,