金属学报  1978, Vol. 14 Issue (3): 227-324

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铝和钛对一种35镍15铬型铁基高温合金组织结构和力学性能的影响

郭建亭

中国科学院金属研究所铁基高温合金研究组

THE EFFECT OF ALUMINIUM AND TITANIUM ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AN IRON-BASE ALLOY

Res. Gp. of Iron-base Superalloy(Institute of Metal Research; Academia Sinica)

郭建亭. 铝和钛对一种35镍15铬型铁基高温合金组织结构和力学性能的影响[J]. 金属学报, 1978, 14(3): 227-324.
. THE EFFECT OF ALUMINIUM AND TITANIUM ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AN IRON-BASE ALLOY[J]. Acta Metall Sin, 1978, 14(3): 227-324.

摘要 参考文献 相关文章 Metrics 全文: PDF(2764 KB)   摘要: 在一种35镍15铬型铁基高温合金中,随铝、钛和及钛铝比不同,合金中出现γ′-Ni_3(Al,Ti),M_3B_2,TiC,Y-Ti_2SC,β-NiAl,α-Ni_2AlTi,η-Ni_3Ti,σ和Layes相。 铝、钛和对γ′相的数量、大小、错配度及化学成份有强烈影响。而钛铝比主要影响γ′相的错配度和成份,对数量和大小几乎没有影响。对于800℃(500小时)和700℃(5000小时)时效后的组织,铝、钛和也有显著影响,析出σ或Laves相的Al+Ti含量分别为5％和4％左右。 铝、钛和及钛铝比并能明显影响室温和650℃瞬时性能、750℃持久时间以及700℃长期时效后的力学性能。 Abstract：In the case of a 35Ni-15Cr type iron-base superalloy, in which phases such as γ′-Ni_3(Al, Ti), M_3B_2, TiC, Y-Ti_2SC, β-NiAl, α-Ni_2AlTi, η-Ni_3Ti, σ and Laves, may be present, total amount of aluminium and titanium and the ratio (Ti/Al) in the alloy exerted marked influences upon these phases. It is found that the variation of Al+Ti contents may change the weight fraction, the size and the chemical composition of γ′-phase and γ-γ′ mismatch, as well as the microstructure of the alloy after prolonged exposure at 800℃ for 500 hrs and at 700℃ for 5000 hrs. The ratio Ti/Al, however, affected the γ-γ′ mismatch and the chemical compositions of γ′-phase, but not the weight fraction and size of γ′-phase. It was observed that either σ or Laves phase was present after prolonged exposure at 800℃ and 700℃ if Al+Ti content of the alloy exceeded 5 or 4% respectively. The tensile properties at room temperature and at 650℃, the stress-rupture properties at 750℃, the tensile properties after prolonged exposure at 700℃ all showed a change of the mechanical properties of the alloy commensurate with the microstructutre aforementioned. 收稿日期: 1978-03-18      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 郭建亭 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1978/V14/I3/227 [1] 郭建亭等,铬和硅对一种35Ni-15Cr型铁基高温合金力学性能和组织结构的影响,待发表. [2] 郭建亭等,金属学报,10(1974) ,74． [3] Raynor, D. and Silcock, J. M., Metal Sci. J., 4 (1970) , 121． [4] Brown, L. M. and Ham, R. K., Strengthening Methods in Crystals, ed. by A. Kelly and R. B. Nicholson, Elsevier, Amsterdam, (1971) , pp. 10-135． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed