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Austenitic solidification mode in austenitic stainless steel welds
Metallurgical Transactions A, 1979The micro- and macrostructures of about 50 different stainless welds of the AISI/AWS 300 series are analyzed. The results indicate that in welding condition corresponding to a typical SMA welding those and only those welds in which the ratio Creq/Nieq≲1.48, where Nieq and Creq are the nickel and chromium equivalents on the Schaeffler diagram, solidify ...
T. Takalo, N. Suutala, T. Moisio
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Strengthening austenitic steels by using nanotwinned austenitic grains
Scripta Materialia, 2012Abstract A novel strategy for strengthening austenite steels is introduced by using the unique strengthening effect of nanoscale twins. Austenite grains containing multiple nanoscale twins can be strengthened to a yield strength of a few GPa with very high work-hardening rates.
K. Lu, F.K. Yan, H.T. Wang, N.R. Tao
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Ordering kinetics of Fe3Pt austenites and reversed austenites
Metallurgical Transactions A, 1980Fe3Pt austenites undergo an ordering reaction belowT c in addition to the martensite transformation at a much lower temperature. It is to be expected that theM s temperature will be affected by the degree of austenite order and the progress of austenite ordering can be conveniently represented by the variation ofM s temperature.
H. Chang, S. Sastri
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Transformation to pearlite from austenitized and recrystallized austenite
Materials Science and Engineering, 1986Abstract The influence of hot deformation and austenization temperature on the subsequent isothermal transformation to pearlite was studied for 40Cr steel (which contains 0.38%C and 0.89%Cr). The deformation of austenite above its recrystallization temperature may accelerate or retard the subsequent pearlite transformation, and the decrease in ...
C.K. Yao +3 more
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Austenite grain growth in alumina-forming austenitic steel
Journal of Materials Research, 2016Abstract
Qiuzhi Gao +3 more
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Ferritic-austenitic solidification mode in austenitic stainless steel welds
Metallurgical Transactions A, 1980The macro-and microstructures of about fifty different stainless welds of the AISI/ AWS 300 series are analyzed. The results indicate that under conditions corresponding to a typical shielded metal arc (SMA) welding the welds with a ratio in the range 1.48≾Cr eq /Ni eq ≾1.95, where Ni
N. Suutala, T. Takalo, T. Moisio
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Transformation to pearlite from hot-deformed and austenitized austenite
Materials Chemistry and Physics, 1987Abstract The influence of hot deformation and austenization temperature on the subsequent isothermal transformation to pearlite was studied for steels 40Cr and 50CrV. The deformation of austenite above or below its recrystallization temperature may accelerate the subsequent pearlite transformation.
C.K. Yao, X.Y. Men, Y.M. Zhang
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Thermodynamics of carbon in austenite and Fe-Mo austenite
Metallurgical Transactions A, 1976A Cahn Electrobalance has been used to determine directly and very accurately the carbon content of iron, iron-0.48 wt pct molybdenum and iron-1.16 wt pct molybdenum specimens which were equilibrated with a series of methane-hydrogen gas mixtures of constant composition.
Joseph A. Lobo, Gordon H. Geiger
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Materials Science and Engineering, 1979
Abstract The effect of short re-austenitizing cycles at various temperatures on the average austenite grain size, the formation of carbides, the austenite stabilization and the kinetics of the bainite transformation in three model steels was studied. Optical and electron microscopy and X-ray diffraction showed that the austenite grain size decreases ...
Pavel Chráska, Jiří Dubský
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Abstract The effect of short re-austenitizing cycles at various temperatures on the average austenite grain size, the formation of carbides, the austenite stabilization and the kinetics of the bainite transformation in three model steels was studied. Optical and electron microscopy and X-ray diffraction showed that the austenite grain size decreases ...
Pavel Chráska, Jiří Dubský
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2007
Abstract The first step in the hardening of steel is getting it hot enough to form austenite, from which martensite can form upon quenching. Not all steels have the same austenitization requirements, however. High-carbon wear-resistant steels, such as bearing and tool steels, require the presence of carbides during austenitization; plain
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Abstract The first step in the hardening of steel is getting it hot enough to form austenite, from which martensite can form upon quenching. Not all steels have the same austenitization requirements, however. High-carbon wear-resistant steels, such as bearing and tool steels, require the presence of carbides during austenitization; plain
openaire +1 more source