Results 331 to 340 of about 103,556 (374)

Effect of Austenite Stability on Pack Aluminizing of Austenitic Stainless Steels

JOM, 2014
Aluminide 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.
Vilupanur A. Ravi, Armando Coronado, Christopher Lopez, Obed Villalpando, Sutine Sujittosakul, Armen Kvryan, Shahan Kasnakjian   +6 more
openaire   +2 more sources

Stabilization of Austenite by Hydrogen

Nature, 1960
ATTEMPTS to study the possible effects of hydrogen on the austentite–martensite transformation in steels have always to reckon with the difficulty of retaining adequate amounts of hydrogen in them, regardless of the amounts initially present. The austenitizing and heat treatment of steels are generally carried out at virtually atmospheric pressures or ...
C. Dasarathy, E. G. Ramachandran
openaire   +2 more sources

The diffusion of carbon in austenite

Acta Metallurgica, 1988
Abstract A calculation of the variation with concentration of the diffusivity of carbon in austenite is given. Absolute rate theory is used to calculate the intrinsic jumping frequency of C-atoms located in differing atomic configurations in the austenite lattice.
C. Ko, Rex B. McLellan
openaire   +2 more sources

The nature of expanded austenite

Surface and Coatings Technology, 2000
Abstract This paper attempts to reduce some of the confusion that exists over the nature of the nitrogen-rich layer produced by nitriding austenitic stainless steel at temperatures below 500°C. Cross-sectional transmission electron microscopy shows that the modified layer is dominated by a cubic phase with considerable expansion of the austenite ...
M.P Fewell, J.M Priest, David R. G. Mitchell, Ken Short, G.A. Collins   +4 more
openaire   +2 more sources

The distribution of boron in austenite

Metallurgical Transactions, 1972
The partitioning of boron between grain boundary and austenite matrix sites in steel has been examined by the use of boron autoradiography. Results show that inalloyscontainingO.0037at.pctB and 0.68 at. pct C, boron segregates to the austenite grain boundary with a binding energy of 9.6 ±1.0 kcal/mole.
J. E. Morral, W. F. Jandeska
openaire   +2 more sources

The thermodynamics of nitrogen austenite

Scripta Metallurgica, 1970
Nitrogen austenite solute-solute binding energy derivation from experimental data for comparison with carbon ...
Rex B. McLellan, Kurt Alex
openaire   +2 more sources

The diffusivity of carbon in austenite

Acta Metallurgica, 1976
Abstract The “tracer” diffusion coefficient of carbon in austenite at 1000°C has been measured as a function of carbon concentration. A carbon density gradient was avoided by investigating the mobility of C 14 atoms in diffusion couples constructed so that total concentration of C 12 + C 14 atoms was constant at every point. The “tracer” diffusion
Rex B. McLellan, D.C. Parris
openaire   +2 more sources

Austenite Stability and Strain Hardening in C-Mn-Si Quenching and Partitioning Steels

Metallurgical and Materials Transactions. A, 2020
C. Finfrock, A. Clarke, G. Thomas, K. Clarke   +3 more
semanticscholar   +1 more source

Kinetics of Reverted Austenite in 18 wt.% Ni Grade 300 Maraging Steel: An In-Situ Synchrotron X-Ray Diffraction and Texture Study

JOM, 2020
L. P. M. dos Santos, M. Béreš, Mirela Oliveira de Castro, P. Sarvezuk, Leonardo Wu, L. F. G. Herculano, A. Paesano, C. C. Silva, M. Masoumi, H. F. D. de Abreu   +9 more
semanticscholar   +1 more source

Decomposition of austenite

Metal Science and Heat Treatment, 1985
V. G. Konarev, A. L. Geller, A. A. Baranov   +2 more
openaire   +2 more sources