Results 101 to 110 of about 5,352 (232)

Physico-Chemical Processes from the X70 Steel Making and Continuous Casting that Influence its Properties

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2019
The paper presents the processes of elaboration and casting that favourably influence the properties of microalloyed steel. High strength microalloyed steel used to manufacture main oil and gas pipelines must meet, in addition to special technical ...
Gigi STRAT   +3 more
doaj   +1 more source

Influence of Nb microaddition on microstructure and texture evolution in a Fe-21Mn-1.3Al-1.5Si-0.5C TWIP steel under uniaxial hot-tensile conditions [PDF]

open access: yes, 2017
Advanced high-strength steels as Twinning Induced Plasticity (TWIP) steels have been developed using microalloying elements and subsequent thermo-mechanical processing techniques.
Cabrera Marrero, José M.   +2 more
core   +2 more sources

Metallurgical Effects of Niobium and Molybdenum on Heat-Affected Zone Toughness in Low-Carbon Steel

open access: yesApplied Sciences, 2019
Modern weldable high strength steel grades are typically based on low-carbon alloy concepts using microalloying for obtaining a good strength-toughness balance.
Hardy Mohrbacher
doaj   +1 more source

Effect of precipitates on the austenite grain growth of titanium microalloyed high performance steel

open access: yes工程科学学报, 2016
An austenite grain growth model was established by analyzing the quantificational relationship between precipitates and austenite grain size. The austenite grain size of Ti microalloyed steel with the interaction of TiN and TiC panicles was calculated by
LUO Xu   +3 more
doaj   +1 more source

Twin-induced plasticity of an ECAP-processed TWIP steel [PDF]

open access: yes, 2017
The TWIP steels show high strain hardening rates with high ductility which results in high ultimate tensile strength. This makes their processing by equal channel angular pressing very difficult.
Benito Páramo, José Antonio   +3 more
core   +2 more sources

Increase quality welded joints pipe when using flux cored wire [PDF]

open access: yes, 2015
The article presents a mathematical model of nonlinear thermal processes when multiarc welding of electric welded pipes, allowing to assess changes in the structure of the welded joint obtained using flux cored wire.
Yakovlev, D. S., Яковлев, Д. С.
core  

Development of Innovative Method of Steel Surface Hardening by a Combined Chemical-thermal Treatment [PDF]

open access: yes, 2016
The aim of the article is a hardening of the surface steel layers due to the combination treatment. Samples of steel 38Cr2MoAl were hardened by complex chemical and thermal treatment such as carburizing and subsequent boriding.
Kostyk, K. (Kateryna)
core  

An Analysis on Surface Cracks Formation of H Beam of Nb-V Microalloying Steel BS55C

open access: yesTeshugang, 2006
The causes of surface cracks formation of H beam of Nb-V microalloying steel BS55C-0. 14~0. 17C,0.45~0.55Si,1.25~1.45Mn,0.08~0. 10V,0.03~0.05Nb have been analyzed.
刘建华   +4 more
doaj  

Istraživanje promjena raspodjele i brzine deformacije u okolini prijeloma s videoekstenziometričkom metodom [PDF]

open access: yes, 2010
The paper deals with the strain distribution and the strain rate of material in the surroundings of its fracture. Three steels applied in the automotive industry (DP - dual phase steel, microalloyed steel HR 45 and IF - interstitial free steel) were used
M. Mihaliková
core   +1 more source

Hardenability, transformation and precipitation effects in vanadium steels. [PDF]

open access: yes
Recent work has highlighted unusual effects of vanadium when used in conjunction with other microalloying additions on the hardenability of steels. Positive and negative synergistic effects have been observed, but studies into the mechanisms have been ...
Platt, Geoffrey K.
core  

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