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Article
Mechanism of α-Cr precipitation and crystallographic relationships between α-Cr and δ phases in Inconel 718 alloy after long-time thermal exposure
To study the precipitation mechanism of α-Cr phase in Inconel 718 alloy, the samples after long-time aging at 650 and 677°C were examined by microstructural observations and chemical phase analysis methods. Co...
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Article
Relationship Between Grain Boundary Segregation of Antimony and Temper Embrittlement in Titanium-Doped Nickel-Chromium Steel
The antimony segregation at grain boundary was observed and the temper embrittlement in titanium-doped nickel-chromium steel was analyzed. It is concluded that the antimony segregation at grain boundary is non...
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Article
Effects of simulated on-fire processing conditions on the microstructure and mechanical performance of Q345R steel
A series of simulated on-fire processing experiments on Q345R steel plates was conducted, and the plates’ Brinell hardness, tensile strength, and impact energy were tested. Microstructure morphologies were sys...
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Article
Nucleation mechanisms of dynamic recrystallization for G3 alloy during hot compression
Dynamic recrystallization (DRX) mechanisms of a nickel-based corrosion-resistant alloy, G3, were investigated by hot compression tests with temperatures from 1050 to 1200 °C and strain rates from 0.1 to 5.0 s−1. ...
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Article
Constitutive behavior and processing maps of low-expansion GH909 superalloy
The hot deformation behavior of GH909 superalloy was studied systematically using isothermal hot compression tests in a temperature range of 960 to 1040°C and at strain rates from 0.02 to 10 s−1 with a height red...
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Article
The Correlation Between Grain Orientation Evolution and Stress Rupture Properties of Waspaloy
The grain orientation evolution of Waspaloy with different initial grain sizes under the same stress rupture tests were systematically investigated by electron back-scattered diffraction (EBSD). Correlation b...
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Article
Hot corrosion behavior and mechanism of FGH96 P/M superalloy in molten NaCl–Na2SO4 salts
Hot corrosion behavior of FGH96 powder metallurgy (P/M) superalloy in 25 % NaCl + 75 % Na2SO4 molten salts at 650, 700, and 750 °C was investigated in this paper. The methods of mass loss measurement, X-ray diffr...
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Article
A new insight into rapid oxidation of alloy 925 contaminated by oxide powder
Rapid oxidation takes place both in the laboratory and in industrial conditions when alloy 925 is contaminated by oxide powder, and the oxidation rate is much higher than normal. Herein, the rapid oxidation be...
