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金属学报  1980, Vol. 16 Issue (4): 386-492    
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低铝钛35Ni-15Cr型铁基高温合金的高温长期性能和组织稳定性的研究
郭建亭;徐嘉勋;安万远
中国科学院金属研究所;哈尔滨汽轮机厂;哈尔滨汽轮机厂
AN EVALUATION OF LONG-TERM PERFORMANCE AND MICROSTRUCTURAL STABILITY OF A 35Ni-15Cr TYPE IRON-BASE SUPERALLOY WITH REDUCED Al+Ti CONTENT
Guo Jianting;Xu Jiaxun;An Wangyuan Institute of Metal Research; Academia Sinica Harbin Turbine Works
引用本文:

郭建亭;徐嘉勋;安万远. 低铝钛35Ni-15Cr型铁基高温合金的高温长期性能和组织稳定性的研究[J]. 金属学报, 1980, 16(4): 386-492.
, , . AN EVALUATION OF LONG-TERM PERFORMANCE AND MICROSTRUCTURAL STABILITY OF A 35Ni-15Cr TYPE IRON-BASE SUPERALLOY WITH REDUCED Al+Ti CONTENT[J]. Acta Metall Sin, 1980, 16(4): 386-492.

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摘要: 将一种35Ni-15Cr型铁基高温合金的Al+Ti含量由5%降低至3%,经长达四年之久的高温持久、蠕变及高温长期时效后的冲击试验结果表明,其高温长期性能良好,超过ЭИ787,ЭИ437Б,Nimonic 80和80A等,可以满足700℃长期使用的燃气轮机动叶片的要求.组织结构的研究表明,应力加速相变过程,使γ′相发生定向聚集,使σ相和Laves相提前析出.持久断裂试验后的室温瞬时性能介乎作为燃气轮机动叶片长期使用后的Inconel 700和Inconel X之间,保持到一个可以接受的水平.
Abstract:Four-year performance tests on creep and creep-rupture strength under vari-ous stress levels at 700℃ have been carried out for a modified 35Ni-15Cr iron-base superalloy with Al+Ti content reduced from 5 to 3%. It is shown that thehigh temperature properties of this alloy are superior to those of other superalloysof the same type such as ЭИ787, ЭИ437Б, Nimonic 80 and 80A, etc. It seemsthat such an alloy may meet the demands of turbine blade materials for longtime service at 700℃. However, microstructural observations showed that stressingpromotes phase transformation, e. g. γ' phase tends to coarsen directionally whileσ and Laves phases precipitate out much earlier. The results of room temperaturetensile tests after rupture exposure further confirm the acceptability of such alloyas gas turbine blade material for long-term uses.
收稿日期: 1980-04-18     
[1] 铁基高温合金研究组,金属学报,14(1978) ,227.
[2] #12
[3] #12
[4] Betteridge, W. and Heslop, J., The Nimonic Alloys and Other Nickel-Base High-Temperature Alloys, Edward Arnold, 1974, p. 243.
[5] #12
[6] 铁基高温合金研究组,金属学报,14(1978) ,348.
[7] Susukida, H., Sunamoto, D. and Sakumoto, Y., ASME Gas Turbine Conference and Products Show. 69-GT-12. 2--4.
[8] 郭建亭,朱耀霄,师昌绪,金属学报,10(1974) ,74.
[9] Webster, G. A. and Piearcey, B. J., Metal Sci. J., 1 (1967) , 97.
[10] Sullivan, C. P., Webster, G. A. and Piearcey, B. J., J. Inst. Metals, 96 (1968) , 274.
[11] Tien, J. K. and Copley, S. M., Met. Trans., 2 (1971) , 215.
[12] Tien, J. K. and Copley, S. M., Met. Trans., 2 (1971) , 543.
[13] 郭建亭,金属学报,16(1980) ,30.
[14] Tien, J. K. and Gamble. R. P., Met. Trans.. 2 (1971) . 1663.
[15] 西羲澈,特殊钢,17(1968) ,№5,59
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