The ATD thermal analysis of selected nickel superalloys
Journal Title: Archiwum Odlewnictwa - Year 2010, Vol 10, Issue 2
Abstract
The study presents the results of the ATD thermal analysis made on selected nickel alloys used by WSK Rzeszów for parts of aircraft engines. The aim of the studies was investigation of solidification parameters, especially Tlik and Tsol. The said parameters are very important in the determination of pouring temperature and maximum operating temperature of castings. Another important technical information is the quality of “master heat” ingots, examined for the stability of chemical composition and presence of different impurities. It has been concluded that the pouring temperature of CMSX-4 and MAR-247 alloys should be comprised in a range from 1470 to 1480°C, while for the remaining alloys the recommended range of pouring temperatures is from 1440 to 1450°C. Examinations have also proved that some batches of the supplied ingots are contaminated with non-metallic impurities, located mainly in the region of shrinkage cavities.
Authors and Affiliations
F. Binczyk, J. Śleziona
Keywords
Related Articles
- EP ID EP71741
- DOI -
- Views 110
- Downloads 0
Production of Steel Casts in Two-Layer Moulds with Alkaline Binders Part 1. Backing sand with the alkaline inorganic binder RUDAL
Steel casts in Z.N. POMET were produced in moulds made of the moulding sand Floster. This sand did not have good knocking out properties, required a significant binder addition (4.5-5.0 parts by weight), and the casting...
Corrosion behaviour of the AlSi6Cu4 alloy and cast AlSi6Cu4-graphite particles composite
The corrosion behaviour of the AlSi6Cu4 alloy as a composite matrix and of composites with 8% vol. of graphite particles was investigated. The corrosion experiments were performed over a range of elevated temperatures an...
Control of cast iron and casts manufacturing by Inmold method
In this paper the usability of cast iron spheroidizing process in mould control by ATD method as well as by ultrasonic method were presented. Structure of instrumentation needed for control form performance of cast iron...
Sigma phase in the cast alloy based on the FeB3BAl intermetallic phase
The paper presents study results for cast alloy based on the FeB3BAl intermetallic phase. The study material was Fe-28Al-5Cr-1Mo-0,1Zr- 0,005B% at. alloy in the cast state. The microscopic research, phase analysis with X...
Ultralight magnesium-lithium alloys for plastic working
Various chemical compositions of ultralight magnesium-lithium alloys were examined and metallographic studies of these alloys, designed for further plastic working, were carried out. The preliminary results of mechanical...