Results 91 to 100 of about 13,871 (155)

Effect of alloy treatment and coiling temperature on microstructure and bending performance of ultra-high strength strip steel [PDF]

open access: yes, 2018
Two different high strength B-containing microalloyed steel strips produced in industrial processing conditions, one treated with Ti and the other treated with Al, processed by controlled rolling, accelerated cooling and coiling in two different ...
A. Maatta   +35 more
core   +1 more source

Achieving ultrafine martensite-bainite duplex microstructures by combining prior cold deformation with chronological control of phase transformation in GCr15 bearing steel

open access: yesJournal of Materials Research and Technology
In this work, a strategy is proposed by combining prior cold deformation with chronological control of phase transformation to achieve ultrafine martensite-bainite duplex microstructures in GCr15 bearing steel, which is the specimens with 0∼45 % prior ...
Xiaohui Lu   +7 more
doaj   +1 more source

Comparative Fatigue Analysis of Structural Steels Considering Welding and Surface Effects

open access: yesStrain, Volume 61, Issue 2, April 2025.
ABSTRACT There are limited data on the very high‐cycle fatigue for structural steel welds for over 10 million cycles. The purpose of this research is a fatigue performance comparison of the welds made of steels S355JR+AR and S275JR+AR. The goal of reaching the gigacycle fatigue domain is achieved using the ultrasonic fatigue testing at 20 kHz.
Yevgen Gorash   +6 more
wiley   +1 more source

Enhancing strength without sacrificing ductility in medium-carbon multiphase bainitic steel through increased intercritical annealing temperatures

open access: yesJournal of Materials Research and Technology
In bainitic steels, enhancing strength often comes at the expense of ductility. In this paper, a medium-carbon multiphase bainitic steel was produced through intercritical annealing (IA) at various temperatures, followed by isothermal bainite ...
Wenlu Yu   +9 more
doaj   +1 more source

Effect of Boron on Structure and Mechanical Properties of 780 MPa Low Carbon Bainite Steel

open access: yesTeshugang, 2018
The tested low carbon bainite steel (/%: 0.08C, 0.11~0.13Si, 1.10~1.12Mn, 0.008〜0.009P, 0.002S, 0.21~0.23Ni, 0.020~0.021Ti, 0.003〜0.004Nb, 0~0.0010B, 0.0007~0.0008O, 0.0031~0.0033N) is melted by a 50kg vacuum induction furnace, rolled to 45mm plate ...
Zhao Yanqing   +6 more
doaj  

Effects of normalizing and tempering temperature on the bainite microstructure and properties of low alloy fire-resistant steel bars

open access: yesHigh Temperature Materials and Processes
Different combinations of normalizing and tempering were carried out to optimize the microstructure and enhance the high-temperature mechanical properties of HRB400FR fire-resistant steel bars. The results showed that with the increasing of the tempering
Zheng Zhichao   +8 more
doaj   +1 more source

Effect of Pipe Flattening in API X65 Linepipe Steels Having Bainite vs. Ferrite/Pearlite Microstructures

open access: yesMetals, 2018
The influence of microstructure on pipe flattening response was assessed using two different commercially produced U-ing, O-ing, and expansion (UOE) pipes from API X65 steels having either a bainitic microstructure (steel B) or a ferrite/pearlite ...
Singon Kang   +3 more
doaj   +1 more source

Effect of Austempering Temperature on Microstructure Evolution, Mechanical Properties and Wear Resistance of Carbon-Free Nano-Bainite Steel

open access: green, 2023
Gang Niu   +9 more
openalex   +1 more source

Vanadium Effect on a Medium Carbon Forging Steel

open access: yesMetals, 2016
In the present work the influence of vanadium on the hardenability and the bainitic transformation of a medium carbon steel is analyzed. While V in solid solution enhances the former, it hardly affects bainitic transformation.
Carlos Garcia-Mateo   +4 more
doaj   +1 more source

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