Results 131 to 140 of about 658 (184)

Hydrogen in microalloyed steels

Steel Research, 2001
To understand and control hydrogen induced cracking and stress corrosion cracking, the processes of hydrogen absorption, diffusion and trapping are of interest. Fundamentals of these processes are described and of the determination of permeation coefficient, diffusivity and solubility of H in iron and steels, using the electrochemical double cell. With
Grabke, H., Gehrmann, F., Riecke, E.
openaire   +2 more sources

Fatigue of Microalloyed Bar Steels

SAE Technical Paper Series, 2000
<div class="htmlview paragraph">The fatigue behavior of five microalloyed steels, processed with hardnesses between 25-28 HRC containing microstructures ranging from precipitation-hardened ferrite-pearlite to bainite, were evaluated in both low cycle (strain controlled) and high cycle (stress controlled fatigue.
John A. Johnson   +2 more
openaire   +1 more source

Plasma nitriding of microalloyed steel

Surface and Coatings Technology, 1995
Abstract 3icroalloyed or high strength low alloy (HSLA) steels are carbon-manganese steels containing small amounts of Nb, V or Ti. The excellent mechanical properties of these alloys, particularly high yield strength, usually obviate the need for expensive quench and tempering operations.
F. Mahboubi   +4 more
openaire   +1 more source

Use of Zirconium in Microalloyed Steels

Advanced Materials Research, 2006
In this work, three Zr microalloyed steels with different levels of Zr were compared with plain C-Mn, Nb and Nb-Ti steels. Austenitic grain size was compared as a function of temperature for these steels. A qualitative assessment of the potential of Zr to delay austenite recrystallization, was also undertaken. Of course, the actual use of Zr depends on
A.R.B. Maia   +4 more
openaire   +1 more source

Microalloyed steel for railroad wheels

Steel in Translation, 2008
Radical improvement in the reliability and longevity of railroad wheels at high train speeds and loads depends primarily on improvements in the properties of wheel steel: increased static and cyclic strength, high- and low temperature strength, and wear resistance, and low likelihood of the formation of martensitic surface zones.
S. Ya. Shipitsyn   +4 more
openaire   +1 more source

Microalloyed Forging Steels

Materials Science Forum, 1998
Microalloyed forging steels have been developed to improve the competitiveness of wrought steel components, especially in the automotive sector, by achieving the desired properties in the as-forged condition, thus eliminating the need to subsequently heat treat, straighten and stress relieve the previously specified low alloy steels.
openaire   +1 more source

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