STRUCTURE AND PROPERTIES OF CASTINGS OF BODY PARTS TURBINES FROM NICKEL ALLOYS AFTER HOT ISOSTATIC PRESSING

Н. А. Лысенко, В. В. Клочихин, В. В. Наумик

Abstract


The influence of hot isostatic pressing (HIP) on the density, microstructure and physico-mechanical properties of castings of body parts of the turbine from heat-resistant Nickel alloys ВХ4Л-ВИ and ВЖЛ14-ВИ. Comprehensive studies have shown that the HIP provides the quality of castings by reducing shrinkage microporosity. Surgery of the hip, followed by heat treatment according to the standard mode enhances the mechanical and heat resistant properties. The analysis of obtained results allows to consider the possibility of combining the process of the HIP and high-temperature thermal processing followed by aging, which provides higher performance, lower energy consumption and significant cost savings compared to the individual processes of the HIP and heat treatment.

Keywords


heat-resistant alloys, body casting, gas-static treatment, microporosity

References


Supersplavy II. Zharoprochnye materialy dla aerokosmicheskikh promishlenykh energeticheskikh ustanovok [Superalloys II. Heat-resistant materials for aerospace industrial power plants]. Мoscow, Меtallurgiya Publ., 1995. 305 p.

Kachanov, Y. B. Sostoyanie i perspektivy razvitiya rabot po zharoprochnym splavam dla lopatok turbin [The state and prospects for the development of works on heat-resistant alloys for turbine blades]. Tekhnologiya logkikh splavov, 2005, no. 1, pp. 10-17.

Маc-Holvin, J. M. Mnogotsiklovaya ustalost nikelevykh splavov [Multi-cycle fatigue of nickel alloys]. Zharoprochnye splavy dla gazovykh turbin. Materiali mezhdunar. konf. [Heat-resistant alloys for gas turbines : proceedings of the international conference]. Мoscow, Маshynostroyenie Publ., 1981, pp. 322–341.

Padalko, A. G. Praktika gorachego izostaticheskogo pressovaniya neorganicheskikh materialov: monografiya [The practice of hot isostatic pressing of inorganic materials]. Moscow, ITK Akademkniga Publ., 2007, pp. 194-230.

Lysenko, N. A., Klochikhin, V. V., Tsevirko, E. I. Vliyanie GIP na strukturu i svoistva monokristallicheskikh lopatok iz splava ЖС26-ВИ [Influence of HIP on the structure and properties of monocrystalline blades from ЖС26-ВИ alloy]. Vestnik dvigatelestroeniya, 2010, no. 1, pp. 109-115.

Zhemaniuk, P. D., Klochikhin, V. V., Lysenko, N. A. Vliyanie gorachego izostaticheskogo pressovaniya i termoobrabotki na strukturu i svoistva otlivok iz zharoprochnogo nikelevogo splava [The effect of hot isostatic pressing and heat treatment on the structure and properties of castings from a heat-resistant nickel alloy]. Vestnik dvigatelestroeniya, 2013, no. 1, pp. 9-18.

Kachan, A. Y., Lysenko, N. A., Dudnikov, A. S. Kachestvo otlivok rabochikh lopatok turbiny, modifitsirovannykh nanochastitsami tugoplavkikh soedineniy i obrabotannykh GIP [Quality of castings of turbine blades modified by nanoparticles of refractory compounds and processed with HIP]. Vestnik dvigatelestroeniya, 2014, no. 1, pp. 75-81.

Sorokin, L. I. Svarivaemost zharoprochnykh splavov, primeniayemykh v aviatsionnykh gazoturbinnykh dvigateliakh [Weldability of heat-resistant alloys used in aircraft gas turbine engines]. Svarochnoye proizvodstvo, 1997, no. 4, pp. 4-11.




DOI: https://doi.org/10.32620/aktt.2017.7.18