Results 51 to 60 of about 887 (181)
工程科学学报, 2016 The effect of grain refinement by TiN particles in the simulated coarse-grained heat-affected zone of a high-strength low-alloy steel was investigated by means of analytical characterization techniques such as in-situ microscopy and electron back ...
WAN Xiang-liang +2 more
doaj +1 more source
The Role of Carbon Content on the Microstructure of Rapidly Solidified Fe–Cr–Ni Duplex Steels
steel research international, Volume 96, Issue 3, March 2025.In this study, the effect of carbon content on the microstructure of three Fe–Cr–Ni duplex steels produced by rapid solidification is evaluated. In this research, using scanning electron microscopy and transmission electron microscopy for microstructural analyses, it is revealed that carbon additions change the microstructure formation from primary ...
Emanuelle Machado Amaral +3 more
wiley +1 more source
steel research international, Volume 96, Issue 2, February 2025.A low‐carbon (0.23 wt%) carbide‐free bainitic steel is successfully developed with a total alloying addition of 4.9 wt%, which is relatively lower than alloying additions reported in similar category of steels. The present findings indicate that the currently designed low‐alloy steel composition is amenable to generation of nearly carbide‐free bainitic
Poulami Chakraborty +8 more
wiley +1 more source
工程科学学报, 2017 The influences of rare earth (RE) and Ti-RE complex treatment on the microstructures and toughness in the coarse grain heat-affected zone (CGHAZ) of C-Mn steel were investigated using a Gleeble-1500D thermal simulator with input heat energy of 65 kJ·
ZHANG Sheng-hua +3 more
doaj +1 more source
Study of Pipeline Steels with Acicular Ferrite Microstructure and Ferrite-bainite Dual-phase Microstructure [PDF]
Materials Research, 2015 Three kinds of X70 steels with the same chemical composition and different microstructures fabricated by varying processes were compared in aspect of the microstructures and mechanical properties using SEM, TEM and tensile testing machine.
Xiurong Zuo, Zhengyue Zhou
doaj +1 more source
steel research international, Volume 96, Issue 1, January 2025.A physically based mean field model is employed to describe the microstructural evolution during the thermomechanical control process of X70 high‐strength low‐alloy steels, due to the interaction between strain‐induced precipitation of niobium and titanium carbonitrides and static recrystallization of austenite.
Maria‐Ioanna T. Tzini +1 more
wiley +1 more source
Teshugang, 2018 The controlled rolling and cooling test was conducted on V-N-Cr microalloyed low carbon steel. There are three cooling mode, including cooling with furnace, cooling with insulation quilt, and air cooling, and the microstructure, mechanical properties and
王宝华 +5 more
doaj
The Use of Compressed Air for Micro-Jet Cooling After MIG Welding
Archives of Metallurgy and Materials, 2016 The material selected for this investigation was low alloy steel weld metal deposit (WMD) after MIG welding with micro-jet cooling. The present investigation was aimed as the following tasks: obtained WMD with various amount of acicular ferrite and ...
Hadryś D. +4 more
doaj +1 more source
The Journal of Engineering, Volume 2025, Issue 1, January/December 2025.An arc welding process for long butt joint of high carbon −75Mn steel plates without preheating was selected, assuring quality of weld and productivity. Abstract In order to ensure the stability of the track mechanical device, this paper solves the problem of attaching the lock flange to the side of the rail.
Yong‐Il Jon +3 more
wiley +1 more source
Hot Deformation of AISI 4340 Steel From a Dynamic Material Modeling Perspective
Advances in Materials Science and Engineering, Volume 2025, Issue 1, 2025.This study presents numerical simulations of hot deformed AISI 4340 steel using Deform 3D, conducted at temperatures of 1000°C–1150°C and strain rates of 3–12 s−1. Processing maps and constitutive modeling characterize deformation mechanisms and flow stress behavior. Dynamic recrystallization acts as the dominant softening mechanism.
Japheth Obiko +6 more
wiley +1 more source