Results 71 to 80 of about 514 (117)
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The nature of thermal stabilization of austenite
Metal Science and Heat Treatment, 1972Upon thermal stabilization of austenite the yield stress is increased while the tensile strength remains unchanged. This is associated with the lowering of the MS point. Increasing the incipient shear strength decreases the MS point, in accordance with the requirement for the enhancement of the difference between the free energies of austenite and ...
B. G. Serebrennikova, M. E. Blanter
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Thermal and Mechanical Stability of Austenite in Metastable Austenitic Stainless Steel
Metallurgical and Materials Transactions A, 2019The roles of grain size, texture, strain, and strain rate on the thermal and mechanical stability of austenite in AISI 321 metastable austenitic stainless steel were studied. Ultrafine grain (UFG), fine grain (FG), and coarse grain (CG) specimens with average grain sizes of 0.24, 3, and 37 µm sizes, respectively, were investigated.
A. A. Tiamiyu +4 more
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Effect of Austenite Stability on Pack Aluminizing of Austenitic Stainless Steels
JOM, 2014Aluminide coatings were applied to the surfaces of several austenitic stainless steels—UNS S30300, S30400, S30900, S31000, and S31600 (Type 303, 304, 309, 310, and 316)—by the halide activated pack cementation process. The coating compositions, microstructures, and hardness were determined for the different steels coated at 850°C for 25 h.
Christopher Lopez +6 more
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Thermal stabilization of austenite
Metal Science and Heat Treatment, 19721. To determine the thermal stabilization characteristic of austenite the complex magnetometric method that requires special apparatus can be replaced with measurements of the hardness. 2. There is a good correlation between the results obtained by measuring the hardness and the data obtained by magnetic analysis.
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Phase stability of a manganese-stabilized austenitic stainless steel
Proceedings, annual meeting, Electron Microscopy Society of America, 1989Development of manganese-stabilized stainless steels has been prompted by two objectives: (1) replacement of nickel, normally used to stabilize austenitic stainless steels, since it is an expensive, strategic material, and (2) reduction of long-term induced radioactivity of neutron-irradiated stainless steels by replacing nickel, molybdenum, and ...
E.A. Kenik, P.J. Maziasz, R.L. Klueh
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A cyclic austenite reversion treatment for stabilizing austenite in the medium manganese steels
Scripta Materialia, 2017Abstract Tailoring the fraction and stability of retained austenite in the medium manganese steel has always been an issue of great industrial interest. A novel cyclic austenite reversion treatment (ART) is proposed to obtain considerable amount of retained austenite in a Fe-0.21C-4.53Mn (wt%) steel, and it is found to be more efficient by comparison
Jianing Zhu +5 more
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Metallurgical and Materials Transactions A, 2016
The influence of martensite fraction (f α′) on the stabilization of austenite was studied by quench interruption below M s temperature of an Fe-13Cr-0.31C (mass pct) stainless steel.
Huang, QL +3 more
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The influence of martensite fraction (f α′) on the stabilization of austenite was studied by quench interruption below M s temperature of an Fe-13Cr-0.31C (mass pct) stainless steel.
Huang, QL +3 more
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Metallurgist, 2018
Published sources are reviewed devoted to use of heat treatment for high-strength automotive steels based on the phenomenon of carbon redistribution between martensite and untransformed austenite during quenching and partitioning. The possibility of implementing quenching and partitioning heat treatment providing presence of an increased amount of ...
M. V. Maisuradze, M. A. Ryzhkov
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Published sources are reviewed devoted to use of heat treatment for high-strength automotive steels based on the phenomenon of carbon redistribution between martensite and untransformed austenite during quenching and partitioning. The possibility of implementing quenching and partitioning heat treatment providing presence of an increased amount of ...
M. V. Maisuradze, M. A. Ryzhkov
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CORROSION 2014, 2014
Abstract The primary focus of this research was to investigate the effect of different process parameters on the microstructure of aluminide coatings applied to austenitic stainless steels using the halide activated pack cementation (HAPC) process. The stainless steels studied included: UNS S30400, S31000, and S31600.
Armen Kvryan +6 more
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Abstract The primary focus of this research was to investigate the effect of different process parameters on the microstructure of aluminide coatings applied to austenitic stainless steels using the halide activated pack cementation (HAPC) process. The stainless steels studied included: UNS S30400, S31000, and S31600.
Armen Kvryan +6 more
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Sensitization of manganese-stabilized austenitic steels
Proceedings, annual meeting, Electron Microscopy Society of America, 1990In an earlier study of the phase stability of manganese-stabilized austenitic steels based on Fe-12 Cr-20 Mn-0.25 C (wt %), significant precipitation of tau carbides (M23C6) was found to occur both in the matrix and at grain boundaries during aging near 600°C.
E. A. Kenik +2 more
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