Collapse of lamellar structure and stability with the addition of Misc…
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작성자 최고관리자 작성일20-07-02 09:35 조회393회 댓글0건첨부파일
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TiAl.pdf (3.3M) 0회 다운로드 DATE : 2020-07-02 09:35:23
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구분 | SCI |
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업적 | Collapse of lamellar structure and stability with the addition of Misc… |
상세내용 | ABSTRACT
Misch metal (Mm), consisting of Ce and La, was added to Ti–45Al–3Mo–2Nb alloys in order to investigate phase transformation and microstructural changes. The pseudo-binary phase diagram was estimated via PANDAT softwareTM. The addition of Mm caused a decrease in both the fractions of a2/c lamella and the b0 phase, and served as an important factor for a collapse of lamellar structures. In addition, Mm significantly decreased the colony size of the alloy, resulting in an increase in high-temperature tensile yield strength of * 40% for the alloys with 0.3 at% Mm at 800 C. It appears that the addition of Mm affects the phase stability and increase the proportion of the c phase. The microstructural changes, with respect to Mm additions, were discussed in terms of structural observations during isothermal heat treatments. |
게재지명 | J Mater Sci (2018) 53:12504–12511 |
발표일 | 20180510 |