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Effects of thermal history on the microstructure evolution of Ti-6Al-4V during solidification
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | Journal of materials processing technology |
| ISSN | 0924-0136,1873-4774 |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | Zhang, S.,Li, J.,Kou, H.,Yang, J.,Yang, G.,Wang, J. |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2016-01-01 |
| 초록 | Ti-6Al-4V specimens with different thermal histories were obtained by controlling their solidification and cooling through an automatic temperature-controlled induction melting apparatus. The final microstructure of Ti-6Al-4V was determined by both isothermal holding temperature and time during solidification, especially near the beta; transus temperature. A unique bimodal microstructure consisting of high aspect ratio alpha; particles and small colonies with fine secondary lamellar alpha; appeared in specimens isothermally held from 950 o C to 970 o C. Water quenching was conducted after isothermal holding treatment for comparison. X-ray diffraction, transmission electron microscopy, and electron probe microanalysis were used to explore the evolution mechanism of the unique bimodal microstructure. Primary alpha; breakdown occurred during isothermal holding treatment because of Ostwald ripening and boundary splitting mechanisms. The formation of small colonies with fine secondary lamellar alpha; was also discussed. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART73233832 |
| 첨부파일 |
추가정보
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| ICT 기술분류 | |
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| 주제어 (키워드) | Ti-6Al-4V,Thermal history,Isothermal holding treatment,Microstructure evolution |