| 高温度梯度定向凝固镍基高温合金DZ125的组织演化 |
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| 引用本文： | 闵志先,沈军,熊义龙,王伟,杜玉俊,刘林,傅恒志.高温度梯度定向凝固镍基高温合金DZ125的组织演化[J].金属学报,2011(4):397-402. |
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| 作者姓名： | 闵志先 沈军 熊义龙 王伟 杜玉俊 刘林 傅恒志 |
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| 作者单位： | 西北工业大学凝固技术国家重点实验室; |
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| 基金项目： | 国家自然科学基金项目50827102; 凝固技术国家重点实验室自主课题项目28-TP-2009资助~~ |
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| 摘 要： | 采用液态金属冷却(LMC)定向凝固结合液淬法,在温度梯度(G)为250 K/cm,凝固速率(V)为2-400 μm/s的条件下系统研究了镍基高温合金DZ125的固/液界面形态、胞/枝晶间距及MC碳化物形态.随着V的增大,界面形态经历了浅胞状→深胞状→粗枝晶→细枝晶的转变.一次胞晶间距随着V的增大而增大,当V=5 μm/...
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| 关 键 词： | 镍基高温合金 定向凝固 微观组织 枝晶间距 |
MICROSTRUCTURAL EVOLUTION OF DIRECTIONALLY SOLIDIFIED Ni-BASED SUPERALLOY DZ125 UNDER HIGH TEMPERATURE GRADIENT |
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| MIN Zhixian,SHEN Jun,XIONG Yilong,WANG Wei,DU Yujun,LIU Lin,FU Hengzhi State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an.MICROSTRUCTURAL EVOLUTION OF DIRECTIONALLY SOLIDIFIED Ni-BASED SUPERALLOY DZ125 UNDER HIGH TEMPERATURE GRADIENT[J].Acta Metallurgica Sinica,2011(4):397-402. |
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| Authors: | MIN Zhixian SHEN Jun XIONG Yilong WANG Wei DU Yujun LIU Lin FU Hengzhi State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi'an |
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| Affiliation: | MIN Zhixian,SHEN Jun,XIONG Yilong,WANG Wei,DU Yujun,LIU Lin,FU Hengzhi State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072 |
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| Abstract: | |
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| Keywords: | Ni-based superalloy directional solidification microstructure dendritic spacing |
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