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Vol.39, No.6, 629 ~ 635, 2001
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| Title |
| Research Papers / Transformations : Kffect of Alloying Elements on the Microstructural Change in Cu-6Ni-3Mn-6Sn Alloy |
| 서승필Seung Pil Seo,박영구Young Koo Park,한승전Seung Zeon Han,이정무Jung Mu Lee,김창주Chang Joo Kim |
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| Abstract |
| The physical and mechanical properties of the Cu-6%Ni-3%Mn-6%Sn-0.5%X(Al,Ti,Si)alloys and Cu-6Ni-3Mn-6Sn alloy were strongly dependent on aging condition. The effects of additions of Al, Si and Ti on the mechanical properties and formation of discontinuous precipitate in the alloy have been investigated. In this alloy discontinuous precipitation occurs during aging at 350℃ for 405 min. But addition of Si and Ti in this alloy, discontinuous precipitation occurs much less than the Cu-6Ni-3Mn-6Sn alloy and grain size is decreased. For Cu-6Ni-3Mn-6Sn-X alloy system, spinodal decomposition and transition of metastable phase does not occur but discontinuous precipitation decreased with addition of 0.5% Si, Ti and Al respectively. Also grain size is reduced by addition of 0.5% Si and Ti on Cu-6Ni-3Mn-6Sn alloy because of forming interphase in grain boundary. |
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