Results 71 to 80 of about 463 (184)

Determining the Role of Acicular Ferrite Carbides in Cleavage Fracture Crack Initiation for Two Medium Carbon Microalloyed Steels. [PDF]

Materials (Basel), 2023
Jovanović G, Glišić D, Dikić S, Međo B, Marković B, Vuković N, Radović N.   +6 more
europepmc   +1 more source

Analysis and Modeling of Stress-Strain Curves in Microalloyed Steels Based on a Dislocation Density Evolution Model. [PDF]

Materials (Basel), 2022
Sobotka E, Kreyca J, Poletti MC, Povoden-Karadeniz E.   +3 more
europepmc   +1 more source

A new approach to etching low-carbon microalloyed steels to reveal prior austenite grain boundaries and the dual-phase microstructure. [PDF]

J Microsc, 2023
Rodriguez-Galeano KF, Romano-Acosta LF, Palmiere EJ, Rainforth WM.   +3 more
europepmc   +1 more source

Coarse Grained Heat-Affected Zone Microstructure and Brittleness of Ti-Nb-B Microalloyed High Toughness and Wear Resistant Steel

Metals, 2019
The effects of B, Ti-Nb, and Ti-Nb-B microalloying on the microstructure and properties of the coarse grain heat affected zone (CGHAZ) of C-Mn-Si-Mo wear-resistant steel have been investigated by means of thermal simulation, mechanical property test ...
Defa Li, Kaiming Wu, Hangyu Dong, Oleg Isayev, Oleksandr Hress   +4 more
doaj   +1 more source

Impact properties of microalloyed steels

Metalurgija, 2000
Impact properites of two grades of microalloyed steels (Re>MPa) work hardened by static and dynamic inuaxial tension are presented. Properties are analysed by impact testing at very high impact loading rate (v=785 m/s) and by fatigue testing at ultrasonic, high frequency (20 kHz).
openaire  

Niobium in Microalloyed Rail Steels

, 2017
Rail steels rely primarily on possessing adequate wear and rolling contact fatigue resistance. These properties, together with the toughness, can in principle be optimized by implementing thermomechanical processing assisted by controlled niobium additions. The purpose of the current work is to develop a Nb-microalloying strategy in the context of high-
openaire   +1 more source

Influence of Niobium as Microalloying Element in 3%Si Steel Grade for Electrical Industry

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2012
The paper presents the results of the laboratory research on the chemical composition and crystallographic texture in 3% Si steels and their influence on the level of magnetic losses in the final sheet.
Ana DONIGA
doaj  

A new strategy for developing a Nb microalloyed fire-resistant steel: Effects of boron and cooling rate

Journal of Materials Research and Technology
This study investigates the correlation among cooling rates, boron addition, and their subsequent effects on the microstructure and mechanical properties of niobium microalloyed steels, specifically with an intent to develop new fire-resistant steels ...
A.M. Ferreira, E.A. Ariza, L.F. Bauri, P.M.C.D. Gomes, F.M.S.B. Carvalho, M. Masoumi, J.D. Poplawsky, H. Goldenstein, A.P. Tschiptschin   +8 more
doaj   +1 more source

Optimized carbon extraction replicas for transmission electron microscopy of nanoprecipitates in microalloyed low-carbon steels

Journal of Materials Research and Technology
Nanoprecipitates play a decisive role in strengthening of microalloyed low-carbon steels. The direct carbon extraction replica (CER) method is a promising way to extract the nanoprecipitates from the surrounding iron matrix for a detailed ...
Amir Sabet Ghorabaei, Bart J. Kooi
doaj   +1 more source

Contribution to evaluation of mechanical properties during impact loading [PDF]

Metalurgija, 2008
The paper analyzes the influence of the impact rate of up to 120 ms-1 with a constant energy on the relative compression of high-grade unalloyed steels, Cu and Zn, and the evaluation of energy consumed during the impact bending test at the impact rate of
Buršák, M., Mamuzić, I., Michel’, J.   +2 more
doaj