Effect of deoxidation practice and heat treatment on the hydrogen attack of carbon steels

1987 ◽  
Vol 18 (11) ◽  
pp. 1971-1977
Author(s):  
Hugo F. López
Keyword(s):  
Heat Treatment ◽  
Carbon Steels ◽  
Hydrogen Attack ◽  
Deoxidation Practice

The Influence of Carbonitriding and Heat Treatment on the Properties of Low- and High-Carbon Steels

1994 ◽  
Vol 163-165 ◽  
pp. 239-246 ◽  
Author(s):  
M. Przylecka ◽  
W. Gestwa ◽  
M. Kulka
Keyword(s):  
Heat Treatment ◽  
Carbon Steels ◽  
High Carbon

High-strength carbon steels with hereditary fine crystal structure. IV. Some traits of the structure forming processes in the heat treatment of powdered carbon steels

1987 ◽  
Vol 26 (4) ◽  
pp. 339-345
Author(s):  
I. D. Radomysel'skii ◽  
A. I. Dzyubenko ◽  
A. P. Lyapunov ◽  
A. S. Drachinskii ◽  
Yu. N. Podrezov ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Heat Treatment ◽  
High Strength ◽  
Carbon Steels ◽  
Fine Crystal ◽  
Powdered Carbon ◽  
Fine Crystal Structure

Anisotropy of the charpy impact value of carbon steels and corrective heat treatment

1982 ◽  
Vol 7 (2) ◽  
pp. 147-161 ◽  
Author(s):  
Tsunemichi Imai ◽  
Yoshinori Nishida ◽  
Shiro Kogiso
Keyword(s):  
Heat Treatment ◽  
Charpy Impact ◽  
Carbon Steels

Effect of heat treatment on the resistance to crack propagation during cyclic loading of low-carbon steels

1978 ◽  
Vol 20 (10) ◽  
pp. 811-815
Author(s):  
M. N. Georgiev ◽  
V. N. Danilov ◽  
N. Ya. Mezhova ◽  
I. V. Nikitin ◽  
P. S. Sokolov
Keyword(s):  
Heat Treatment ◽  
Cyclic Loading ◽  
Crack Propagation ◽  
Carbon Steels ◽  
Low Carbon ◽  
Low Carbon Steels

Recent Applications of XSA in Heat Treatment and Fatigue of Steels

1983 ◽  
Vol 27 ◽  
pp. 179-190
Author(s):  
E. Macherauch ◽  
B. Scholtes
Keyword(s):  
Heat Treatment ◽  
Residual Stresses ◽  
Experimental Work ◽  
Carbon Steels ◽  
X Ray ◽  
Lattice Strains ◽  
Heat Treated ◽  
Computer Controlled

This paper is intended to give an exemplary review of recent investigations performed in the X-ray laboratory of the Institut für Werkstoffkunde I of the Universität Karlsruhe, FRG, concerning particular problems of residual stresses of heat-treated and fatigued steels. The experimental work was mainly performed with computer-controlled Karlsruhe type ψ-diffractometers. If linear distributions of residual lattice strains occurred the sin2ψ-method was applied to determine residual stresses. The experiments were performed with plain carbon steels of 0.22 and 0.45 wt.-% carbon (German grade Ck 22 and Ck 45) and some low alloyed steels.

Investigation of Acoustic Signals During W1 Tool Steel Quenching

2015 ◽  
Author(s):  
Chetan P. Nikhare ◽  
Ihab Ragai ◽  
David Loker ◽  
Shannon Sweeney ◽  
Chris Conklin ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Tool Steel ◽  
Acoustic Emissions ◽  
Treatment Temperature ◽  
Carbon Steels ◽  
Design Parameters ◽  
Fluid Medium ◽  
Audible Sound ◽  
Quenching Process ◽  
Sound Signature

Quenching is an important part of the heat treatment process for strengthening medium and high carbon steels. In the heat treatment cycle, the metal is heated to a desired temperature (above the eutectoid temperature) in the furnace and then cooled in a fluid medium such as water, brine, oil or air. Depending on the cooling rate, the mechanical and metallurgical properties of the metal can be altered in order to achieve the specific design parameters that are required by the part. The process in which the metal is cooled rapidly is termed the quenching process. Due to rapid cooling in a medium, such as water, brine, or oil, the quenching process produces an audible sound signature, as well as, acoustic emissions. In this paper, W1 tool steel is investigated through the use of a beam former that is equipped with 32 microphones. Using this device, it is demonstrated that the audible sounds that are produced when quenching depend on the heat treatment temperature and the size of the specimen.

scholarly journals Thermodynamic, Kinetic, and Microstructure Data for Modeling Solidification of Fe-Al-Mn-Si-C Alloys

2020 ◽  
Vol 51 (6) ◽  
pp. 2946-2962
Author(s):  
Jyrki Miettinen ◽  
Sami Koskenniska ◽  
Ville-Valtteri Visuri ◽  
Mahesh Somani ◽  
Timo Fabritius ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Cooling Rate ◽  
Electron Probe ◽  
Shell Growth ◽  
Carbon Steels ◽  
Experimental Measurements ◽  
Solidification Behavior ◽  
Delta Ferrite ◽  
Equilibrium Solidification ◽  
Cracking Tendency

AbstractIn this study, a set of thermodynamic, kinetic, and microstructure data is presented to simulate the non-equilibrium solidification of Fe-Al-Mn-Si-C alloys. The data were further validated with the experimental measurements and then used in a thermodynamic–kinetic software, IDS, to establish the effect of the alloying and cooling rate on the solidification behavior of high-AlMnSi (Al ≥ 0.5 wt pct, Mn ≥ 2 wt pct, Si ≥ 1 wt pct) steels. The modeling results were additionally validated by conducting electron probe microanalysis (EPMA) measurements. The results reveal that (1) solidification in high-AlMnSi steels occurs at much lower temperatures than in carbon steels; (2) increasing the cooling rate marginally lowers the solidus; (3) the microsegregation of Mn in austenite is much stronger than that of Si and Al due to the tendency of Al and Si to deplete from the liquid phase; (4) the residual delta ferrite content may be influenced by a proper heat treatment but not to the extent that could be expected solely from thermodynamic calculations; (5) in high-AlMnSi steels containing less than 0.2 wt pct carbon, the cracking tendency related to the strengthening above the solidus and the shell growth below the solidus may be much lower than in carbon steels.

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