| 凝固速率对定向凝固合金DZ22显微组织的影响 |
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| 引用本文： | 刘忠元,史正兴,佘力,陈荣章,王罗宝,顾林喻. 凝固速率对定向凝固合金DZ22显微组织的影响[J]. 航空学报, 1995, 16(3): 80-84 |
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| 作者姓名： | 刘忠元 史正兴 佘力 陈荣章 王罗宝 顾林喻 |
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| 作者单位： | 西北工业大学４０３教研室，北京航空材料研究所，西安工业学院 |
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| 摘 要： | γ＋γ′共晶为群块状或块状，分布于晶界和枝晶间；ＭＣ型碳化物呈小块状，也分布于晶界和枝晶间。
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| 关 键 词： | 铸造 耐热合金 冷却 速率 结晶 结构 分析 |
EFFECT OF SOLIDIFICATION RATE ON MICROSTRUCTURES OF DIRECTIONALLY SOLIDIFIED SUPERALLOY DZ22 |
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| Liu Zhongyuan,Shi Zhengxing. EFFECT OF SOLIDIFICATION RATE ON MICROSTRUCTURES OF DIRECTIONALLY SOLIDIFIED SUPERALLOY DZ22[J]. Acta Aeronautica et Astronautica Sinica, 1995, 16(3): 80-84 |
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| Authors: | Liu Zhongyuan Shi Zhengxing |
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| Affiliation: | 1. Faculty 403 of Northwestern Polytechnical University, Xi'an, 710072;2. Beijing Institute of Aeronautical Materials, Beijing, 100095;3. Xi'an Institute of Technology, Xi'an,71 |
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| Abstract: | The effect of solidification r ate on the microstructures of directionally solidified superalloyDZ22 is studied wit h the help of ZMLMC directional solidification equipment which has a super hightemperatur e gradient . The r esults show that the size and shapes of Cc , (C+ Cc) and MC change ser i2ously with the increase in cooling r ate. When t he cooling rate is equal to 54. 2K# s- 1, Cc particles dis2tribute evenly; bot h eutect ic (C+ Cc) in group block and MC in block distr ibute in interdentr itic zone. |
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| Keywords: | casting heat resistant alloys cooling rates crystallization structures analyzing |
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