Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 686, Issue -, Pages 55-63Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.05.280
Keywords
Hot isostatic pressing; Surface qualities; Tensile strength; Fatigue limit
Categories
Funding
- Natural Science Foundation of China [51505166, 51375188]
- Fundamental Researcher Funds for the Central Universities [0118110090]
- Scientific Research Foundation of Huazhong University of Science and Technology [0124110072]
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The effects of two different procedures (SL: simultaneous loading, AL: asynchronous loading) on the surface qualities, microstructure and mechanical properties of Ti6Al4V alloy part during hot isostatic pressing (HIP) were investigated. It was found that, in AL process, the surface qualities significantly improved. Both of microstructure were composed of equiaxed grains and lamellar structure, as well as the prior particle boundaries (PPBs) were clearly observed in SL process. Moreover, tensile strength of samples fabricated by the two different procedures was exactly similar. However, the fatigue limit of parts fabricated from AL process was higher than that of parts produced from SL process. (C) 2016 Elsevier B.V. All rights reserved.
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