Affiliation:
1. Shangrao Normal University
2. Chinese Academy of Sciences
Abstract
The segregation and precipitation behavior of phosphoruswas studied in aNi-Fe-Cr base wroughtsuperalloy. The precipitation behavior of phosphides in the alloy contained 0.025% Pwas examined after soaking at 750-1080°C to determine the precipitation temperature range of MNP-type phosphide. The microstructuresunder these various conditions wereinvestigated by scanning electron microscope(SEM) and energy dispersive spectroscopy (EDS). The precipitation temperature of the phosphide in the alloy was determined to be in the range of 850-1040 °C and the precipitation peak temperature was around 980°C.In addition, the melting temperatureof the phosphide was determined to be between 1200 °C and 1250 °C. The current results indicate the tendency of phosphorus segregated at grain boundaries.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference11 articles.
1. Y. X. Zhu, S. N. Zhang, L. Y. Xu, B. Jing, Z. Q. Hu, C. X. Shi, Superalloys with low segregation, Superalloys 1988. TMS, Warrendale, PA. (1988) 703-712.
2. W. R. Sun, S. R. Guo, D .Z. Lu, Z. Q. Hu, Effect of phosphorus on the microstructure and stress rupture properties in an Fe-Ni-Cr base superalloy, Metall. Mater. Trans. A. 28 (1997) 649-654.
3. W. D. Cao, R. L. Kennedy, The effect of phosphorus on mechanical properties of alloy 718, Superalloys 718, 625, 706 and Various Derivatives 1994. TMS, Warrendale, PA. (1994) 463-477.
4. M. Q. Wang, J. H. Du, Q. Deng, Z. L. Tian, J. Zhu, The effect of phosphorus on the microstructure and mechanical properties of ATI 718Plus alloy, Mater. Sci. Eng. A. 626 (2015) 382-389.
5. T. Alam, P. J. Felfer, M. Chaturvedi, L. T. Stephenson, M. R. Kilburn, J. M. Cairney, Segregation of B, P, and C in the Ni-based superalloy Inconel 718, Metall. Mater. Trans. A. 43 (2012) 2183-2191.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献