金属学报  1983, Vol. 19 Issue (1): 18-136

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一种铁基高温合金750℃长期时效的组织对性能影响的研究

姜晓霞;肖耀天;赵洪星;魏翔云

中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所

EFFECT OF MICROSTRUCTURE ON MECHANICAL PROPERTIES OF AN IRON-BASE SUPERALLOY AFTER 750℃ PROLONGED EXPOSURE

JIANG Xiaoxia; XIAO Yaotian; ZHAO Hongxing; WEI Xianyun(Institute of Metal Research; Academia Sinica; Shenyang)

姜晓霞;肖耀天;赵洪星;魏翔云. 一种铁基高温合金750℃长期时效的组织对性能影响的研究[J]. 金属学报, 1983, 19(1): 18-136.
, , , . EFFECT OF MICROSTRUCTURE ON MECHANICAL PROPERTIES OF AN IRON-BASE SUPERALLOY AFTER 750℃ PROLONGED EXPOSURE[J]. Acta Metall Sin, 1983, 19(1): 18-136.

摘要 参考文献 相关文章 Metrics 全文: PDF(3722 KB)   摘要: 利用性能测试、相分析、X射线及电子衍射、能谱分析,特别是扫描电镜观察析出相的三维形貌等方法研究了一种铁基高温合金750℃长期时效后组织结构对性能的影响。时效时间在200h以内,合金仍然具有令人满意的热强性和塑性。在时效1000h以内,γ′是稳定的;500h以后,开始有针状σ相析出;2000h后,σ相长大成片状,并有针状Laves相或μ相析出。发现TiC随时效时间的增长转变为Laves相。200h时效后持久强度开始下降,与针状σ相析出有关,但对高温塑性及持久塑性的影响不大。 Abstract：The effect of microstructure on mechanical properties of an iron-base superalloy after prolonged exposure at 750℃ has been investigated by means of mechanical properties test, phase analysis, X-ray or electron diffraction, EDS and, especially, SEM observation on 3-dimensional morphology of the phases precipitated. After an exposure up to 200h, the high temperature strength and plasticity of the alloy are still satisfactory. The γ'-phase remained stable till 1000 h aging. The σ-phase was found as needle-like precipitates as a result of 500 h exposure, and it was then grown into plates, accompanied with the precipitation of Laves- or μ-phase after aged for 2000 h. As the exposure went on, TiC became the Lavesphase. It is regarded that the precipitation of the needle-like σ-phase is contributable to the decending of the high temperature endurance of the alloy aged for 200h, however, its high temperature plasticity and stress-rupture are little affected. 收稿日期: 1983-01-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 姜晓霞 肖耀天 赵洪星 魏翔云 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1983/V19/I1/18 1 Muzyka, D. R., The Superalloys, Eds. Sims, C. T.; Hagel, W. C. Wiley, New York, 1972, p. 131． 2 Decker, R. F.; Floreen, S., Precipitation from Iron-Base Alloys, Eds. Speich, G. R.; Clark, J. B., Gordon-& Breach, New York, 1965, p. 69． 3 Cowan, T. W., J. Met., 20(1968) , № 11, 22． 4 Beattie, H. J.; Hagel, W. C., Trans. Metall. Soc. AIME, 233(1965) , 277． 5 Beattie, H. J.; Hagel, W. C., Trans, AIME, 209(1957) , 911． 6 Sullivan, C. P.; Donachie, M. J., Jr., Met. Eng. Q., 11(1971) , №4, 1． 7 Barker, J. F., Ross, E. W.; Radavich, J. F., J. Met., 22(1970) , 31． 8 Wloder, S. T., ASM trans. Q., 57(1964) , 110． 9 肖耀天;杨奇斌;范存淦;黑祖昆等,待发表. 10 Maniar, G. N.; Muzyka, D. R.; Whitney, C. R., Trans. Metall. Soc. AIME, 245(1969) , 701． 11 Decker, R. F.; Floreen, S.; Precipitation from Iron-Base Alloys, Eds. Spcich, G. R.; Clark, J. B., Gordon & Breach, New York, 1965, p. 69． 12 Eiselstein, H. L., Advances in the Technology of Stainless Steel and Related Alloys, ASTM STP № 369, ASTM, Philadelphia, 1965, p. 62． 13 Sims, C. T., J. Met., 18(1966) , 1119． 14 Mihalisin, J. R., Trans, Metall. Soc. AIME, 239(1967) , 180． 15 Donachie, M. J.; Kriege, O. H., J. Mater., 7(1972) , 269．y No related articles found! Viewed Full text Abstract Cited   Shared      Discussed