Article ID Journal Published Year Pages File Type
1575355 Materials Science and Engineering: A 2014 10 Pages PDF
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 β→α 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)
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