| 新型高强抗热腐蚀定向凝固高温合金DZ409 |
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| 引用本文： | 李俊涛,燕平,吴剑涛,董建新,王磊,曾强.新型高强抗热腐蚀定向凝固高温合金DZ409[J].钢铁研究学报,2016,28(2):38-44. |
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| 作者姓名： | 李俊涛 燕平 吴剑涛 董建新 王磊 曾强 |
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| 作者单位： | 1. 钢铁研究总院高温材料所,北京 100081;北京钢研高纳科技股份有限公司,北京 100081;2. 北京科技大学材料科学与工程学院,北京,100083;3. 东北大学材料科学与工程学院,辽宁 沈阳,110819 |
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| 基金项目： | 北京市科技计划资助项目 |
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| 摘 要： | 在高温合金设计理论的指导下,综合考虑重型燃机叶片用耐热腐蚀定向凝固高温合金对持久强度、热腐蚀抗力、长期组织稳定性等多方面的要求,设计出 7 种成分的合金.通过热力学平衡相和电子空位数计算,优选3 种成分合金开展力学性能、抗热腐蚀、组织稳定性等研究,进行试验筛选工作,研制出新型抗腐蚀定向凝固高温合金 DZ409 合金.DZ409 合金具有良好的抗腐蚀性能、组织稳定性以及高的力学性能,可用作重型燃机的叶片材料.
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| 关 键 词： | 定向凝固高温合金 力学性能 抗热腐蚀性能 长期组织稳定性 重型燃机 |
Development of a new high strength and hot corrosion resistant directionally solidified superalloy DZ409 |
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| LI Jun- tao,YAN Ping,WU Jian- tao,DONG Jian- xin,WANG Lei,ZENG Qiang.Development of a new high strength and hot corrosion resistant directionally solidified superalloy DZ409[J].Journal of Iron and Steel Research,2016,28(2):38-44. |
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| Authors: | LI Jun- tao YAN Ping WU Jian- tao DONG Jian- xin WANG Lei ZENG Qiang |
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| Affiliation: | 1. Superalloy Department, Central Iron and Steel Research Institute, Beijing 100081, China ;2. Beijing Cisri- Gaona Materials and Technology Co., Ltd., Beijing 100081, China ;3. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China ;4. School of Materials Science and Engineering, Northeastern University, Shenyang 110819?? Liaoning, China |
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| Abstract: | Based on the principles of superalloy design,seven alloy compositions for heavy IGT(Industry Gas Tur-bine)blades application were designed to meet the demand for alloy's properties,such as stress rupture,hot corro-sion resistance,stability of microstructure.Through thermodynamic equilibrium phase calculation and electron va-cancy number calculation of woodyatt method,three kinds of test alloys were studied as primary selections.After testing of mechanical properties,hot corrosion resistance,a new kind of hot resistant directionally solidified super-alloy.DZ409 has high strength,outstanding hot corrosion resistance and microstructure stability properties,and can be used for manufacturing heavy IGT blades. |
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| Keywords: | directionally solidified superalloy mechanical property hot corrosion resistance stability of micro-structure heavy industry gas turbine |
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