QUANTITATIVE METALOGRAPHY OF HEAT TREATED ŽS6K SUPERALLOY
Journal Title: Materials Engineering - Materialove inzinierstvo (MEMI) - Year 2011, Vol 18, Issue 4
Abstract
Alloy ŽS6K is former USSR superalloy used in DV – 2 jet engine. It is used for turbine rotor blade and whole cast small sized rotors with working temperature up to 800 ÷ 1050°C. This alloy was evaluated after annealing at 800 °C/ 10 and followed by cooling with various rate, presented with cooling in water, oil and air. Cooling rates, represented by various cooling mediums, have a significant influence on diffusion processes, which are going in structure. Methods of quantitative metallography (Image Analyzer software NIS – Elements for carbides evaluation, measuring of secondary dendrite arm spacing and coherent testing grid for γ' - phase evaluation) are used for evaluation of structural characteristics on experimental material – Ni base superalloy ŽS6K.
Authors and Affiliations
Juraj Belan
Keywords
Related Articles
- EP ID EP139966
- DOI -
- Views 126
- Downloads 0
CHANGES OF RHEOLOGICAL PARAMETERS OF POLYPROPYLENE AND POLYETHYLENE AFTER EXPOSURE IN ALIPHATIC n-HEXANE
Rheological properties of thermoplastic polymer materials before and after exposure to a chemical solution were evaluated using the frequency sweep test, which monitors changes in viscoelastic properties of polymers with...
TRIBOLOGICAL PROPERTIES OF CrAgN THIN FILMS
CrN and CrAgN thin films were magnetron sputtered onto the substrate made from Vanadis 6 cold work tool steel. The films were examined on tribological properties using a high temperature Pin-on-disc tribometer. Obtained...
SELF-LUBRICATING THIN FILMS FOR TOOL STEELS
Specimens made from Vanadis 6 cold work tool steel were machined, ground, heat processed by standard regime and finally mirror polished. After that, they were layered with CrAgN. The Ag-content in the layers was chosen t...
AN APPARATUS OF INCREASED PRECISION FOR THE MEASUREMENT OF ELECTRO-OPTICAL PARAMETERS OF LIQUID CRYSTALS
The ferroelectric liquid crystals (FLCs) are demanding high attention now a day, because of their potential applications in many electro-optical devices, particularly in displays. The suitable applications of FLCs in dev...
Influence of deformation technology on fatigue properties of titanium
The influence of commercially pure Titanium microstructure on fatigue properties and their improvement or deterioration is analyzed in the presented contribution. One tested material was after cold drawing the other afte...