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| 1 | Microstructural Evolution in Directionally Solidified Ni-Base Superalloy IN792+Hf显示文摘微结构进化在 gamma'precipitates 和 MC 类型碳化物上与一个重音在 Ni 底超级合金 IN792+Hf 的方向性的团结(DS ) 期间被调查了。量的图象分析表明团结的增加在 178 K/cm 的经常的热坡度评价直到 100 亩 m/s 导致了罚款和在当演员组 7'size 和冷却的率之间的 gamma'precipitates.The 关系的一致分发也为 DS IN792+Hf.In 被决定吝啬的时间,当 MC 碳化物的区域部分被 S/L 接口形态学显著地影响时, MC 碳化物尺寸被发现两个都依赖于团结率和 S/L 接口形态学。 | S.M.Seo I.S.Kim J.H.Lee C.Y.Jo H.Miyahara K.Ogi | 2008 | Journal of Materials Science & Technology2008，24，1： | 3 |
| 2 | Effect of Re Addition and Withdrawal Rate on the Solidification Behavior of Directionally Solidified Superalloy AM3显示文摘The influence of Re addition and withdrawal rate on the solidification behavior of the first generation single crystal superalloy AM3 was investigated by directional solidification and quenching experiments.The primary dendrite arm spacing and eutectic volume fraction were measured from directionally solidified superalloy AM3 with different Re contents.It is found that the primary dendrite arm spacing is determined by the withdrawal rate,and Re does not influence on the value.The eutectic fraction increases with increasing Re addition.Partition coeffcients of alloying elements were investigated with energy-dispersive X-ray spectrometry(EDS) analysis.The data was submitted to a statistical treatment to establish the solidification path,and the partition coeficients were measured by fitting the curve with a modified Scheil formula.It is shown that the addition of Re results in bigger microsegregation of alloying elements in directionally solidified AM3 superalloy. | F.Long Y.S.Yoo S.M.Seo T.Jin Z.Q.Hu C.Y.Jo | 2011 | Journal of Materials Science & Technology2011，27，2： | 2 |
| 3 | 热暴露下预应变对CMSX-4单晶高温合金的显微组织演变的影响(英文)显示文摘在室温下,对经完全热处理的第二代单晶高温合金CMSX-4实施压缩和拉伸预应变。压缩和拉伸预应变在单晶CMSX-4中产生了剪切带。单晶CMSX-4在950℃下热暴露10h,沿剪切带产生了γ′粒子择优粗化。剪切带上的γ′粒子逐渐侵入γ通道。最后,γ通道沿着剪切带消失。TCP状粒子伴随着γ通道的消失而出现。然而,热暴露10h的普通单晶CMSX-4没有产生TCP沉淀,也没有γ′粒子择优粗化。热暴露100h的预应变CMSX-4沿剪切带产生了γ′粒子和TCP相粒子择优粗化,基体中也有γ′粒子粗化。 | B.G.CHOI C.Y.JO I.S.KIM S.M.SEO H.M.KIM | 2011 | Transactions of Nonferrous Metals Society of China2011，21，6： | 0 |
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