Results 31 to 40 of about 2,013,900 (214)

Thermomechanical and Microstructural Analysis of the Influence of B- and Ti-Content on the Hot Ductility Behavior of Microalloyed Steels

Metals, 2022
The effects of the combined addition of B and Ti, as well as the influence of different strain rates on the hot ductility behavior of low carbon, continuously cast, microalloyed steels were investigated in this work.
Marina Gontijo, Arnab Chakraborty, Richard F. Webster, Sergiu Ilie, Jakob Six, Sophie Primig, Christof Sommitsch   +6 more
doaj   +1 more source

Influence of prior austenite grain size distribution on the microstructure and mechanical properties of a welded micro-alloyed ABS EH36 steel [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2020
Main objective of the study was to investigate the prior austenite grain size distribution on microstructures and mechanical properties of welded micro-alloyed ABS EH36 steel. Shielded metal arc welding (SMAW) is processed using AWS A5.1 E7016, Dia.
Ganwarich Pluphrach, Tri Kharanan
doaj   +1 more source

Effect of cerium on welding performance of 700 MPa high-strength steel used in construction machinery

工程科学学报, 2020
As the use of high-strength thick plates is increasing in marine engineering, bridge engineering, petroleum pipelines, and other fields, the required performance level of thick welded plates is also increasing.
Bin LU, Fu-rong CHEN, Wei-jian LIU, Jian-guo ZHI   +3 more
doaj   +1 more source

Three-Dimensional Observation of Upper Bainite in the Initial Stage of Transformation in 0.4 wt%C TRIP Steel

Metals, 2023
Three-dimensional microstructures of bainitic ferrites and prior austenite grains (PAGs) were observed in the initial stage of upper bainite transformation by using a serial sectioning technique and orientation analysis by electron back scattering ...
Shotaro Jimbo, Shoichi Nambu
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Characterization of individual retained austenite grains and their stability in low-alloyed TRIP steels [PDF]

, 2007
In situ three-dimensional (3-D) X-ray diffraction experiments have been performed at a synchrotron source on low-alloyed multiphase TRIP steels containing 0.25 wt.% Si and 0.44 wt.% Al and produced with different bainitic holding times, in order to ...
Jimenez-Melero, E.; id_orcid, van Dijk, N. H., Offerman, S. E., Wright, J. P., van der Zwaag, S., Zhao, L., Jimenez-Melero, E., Sietsma, J.   +7 more
core   +1 more source

Control of Upstream Austenite Grain Coarsening during the Thin-Slab Cast Direct-Rolling (TSCDR) Process

Metals, 2019
Thin-slab cast direct-rolling (TSCDR) has become a major process for flat-rolled production. However, the elimination of slab reheating and limited number of thermomechanical deformation passes leave fewer opportunities for austenite grain refinement ...
Tihe Zhou, Ronald J. O’Malley, Hatem S. Zurob, Mani Subramanian, Sang-Hyun Cho, Peng Zhang   +5 more
doaj   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Inoculation of Austenite Primary Grains in Cast Iron [PDF]

, 2014
The modification is a widespread method of improving the strength properties of cast iron. The impact in terms of increasing amounts of eutectic grains has been thoroughly studied while the issue of the impact on the mechanical properties of primary ...
Kopyciński, D., D. Kopyciński, A. Szczęsny, Szczęsny, J., Guzik, E., Ronduda, M., E. Guzik, M. Ronduda, J. Dorula, D. Siekaniec, Dorula, J., Siekaniec, D.   +11 more
core   +1 more source

Kinetics of Austenite Formation in a Medium-Carbon, Low-Alloy Steel with an Initial Martensite Microstructure: Influence of Prior Austenite Grain Size

Journal of Manufacturing and Materials Processing
The impact of prior austenite grain size (PAGS) on the kinetics of austenite formation with an initial martensite microstructure was investigated in a medium-carbon, low-alloy steel.
Navneeth Rajakrishnan, Morteza Sadeghifar, Pinaki Bhattacharjee, Henri Champliaud, Mohammad Jahazi   +4 more
doaj   +1 more source