Results 71 to 80 of about 2,116 (231)
Effect of the cooling rate on microstructure and hardness of MAR-M247 Ni-based superalloy [PDF]
, 2012 The effect of cooling rate on the microstructure of MAR-M247 Ni-based superalloy was investigated via physical simulation of the casting process. Solidification experiments with cooling rates in the range of 0.25–10 K/s showed smooth temperature profiles
Chen +20 more
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Advanced Engineering Materials, Volume 27, Issue 24, December 2025.In the present study, metastable CrMnNi steels with varying chemical compositions and a concomitantly altered stacking fault energy are processed via directed energy deposition and afterwards tested via tensile tests at different temperatures. The present study shows the influence of the manufacturing process on the elemental deformation mechanisms for
Julia Richter +8 more
wiley +1 more source
Metal matrix composites for aircraft propulsion systems [PDF]
Studies of advanced aircraft propulsion systems have indicated that performance gains and operating costs are possible through the application of metal matrix composites.
Signorelli, R. A.
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Journal of Advanced Materials in Engineering, 2020 In this study, the effect of Ta/W ratio on the microstructure and stress rupture properties of Ni-based single crystal (SX) superalloy PWA1483 was investigated. For this purpose, single crystal (SX) superalloys with different Ta/W ratios (0.75, 1.0, 1.32
A. Borouni, A. Kermanpur
doaj
Longitudinal shear behavior of several oxide dispersion strengthened alloys [PDF]
Two commercial oxide dispersion strengthened (ODS) alloys, MA-753 and MA-754, and three experimental ODS alloys, MA-757E, MA-755E, and MA-6000E, were tested in shear at 760 C. Comparisons were made with other turbine blade and vane alloys. All of the ODS
Glasgow, T. K.
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Progress in advanced high temperature materials technology [PDF]
Significant progress has recently been made in many high temperature material categories pertinent to such applications by the industrial community. These include metal matrix composites, superalloys, directionally solidified eutectics, coatings, and ...
Ault, G. M., Freche, J. C.
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Tensile Behavior of Long-term Aged Nickel-base Superalloy
High Temperature Materials and Processes, 2015 The microstructural change of directionally solidified nickel-base superalloy which was aged at 900 °C for 1500 hours and tensile behavior at different temperatures were investigated by scanning electron microscope (SEM) and transmission electron ...
Xia P. C., Chen F. W., Xie K., Yu J. J.
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Calibration approach to electron probe microanalysis: A study with PWA-1480, a nickel base superalloy [PDF]
The utility of an indirect calibration approach in electron probe microanalysis is explored. The methodology developed is based on establishing a functional relationship between the uncorrected k-ratios and the corresponding concentrations obtained using
Terepka, F. M. +2 more
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Effect of Y on Oxidation Behavior of Directionally Solidified Ni-Based Single-Crystal Superalloy
Chinese Journal of Mechanical EngineeringThe effect of yttrium (Y) addition on the oxidation behavior of a Ni-based directionally solidified single-crystal superalloy is investigated in this study. Isothermal oxidation tests for samples with different levels of Y addition are conducted at 1100 °
Zihan Zhao +4 more
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Nihon Kikai Gakkai ronbunshu, 2016 Low cycle fatigue tests at elevated temperature were conducted on a Ni-based directionally solidified superalloy subjected to transverse loading. To investigate the effect of the arrangement and the orientation of crystal grains on the crack initiation ...
Takashi YOKOYAMA, Masaru SEKIHARA
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