チタン合金のHIP過程における最終段階の焼結速度
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概要
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The sintering rate of the final stage in HIP process of imperfectly sintered Ti–6Al–4V and Ti–13V–11Cr–3Al alloy has been investigated on the basis of power-law creep. Activation energy and stress exponent of HIP-sintering rates of titanium alloy have the values close to the previously reported ones of creep and high temperature deformation. On the other hand, using the finite element method, it was evaluated that the f(D) function reported by P.L.Wilkinson et al. and J. M. Duva et al. etc. is most suitable as long as based on the cell model. A'hs could be determined using this f(D) function. In addition, it was concluded that the equation of the HIP-sintering rate should be corrected by consid-ering the trapped gas in the pore, when the initial relative density at HIP is lower than 0.97.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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