Results 21 to 30 of about 460 (108)

Influence of equal-channel angular extrusion on impact toughness of aluminum and brass at room and low temperatures [PDF]

open access: yesInternational Journal of Mechanical and Materials Engineering, 2014
Abstract Background Equal-channel angular extrusion is a severe plastic deformation process that can be used for grain refinement to improve material properties of bulk metals. In this paper, the effect of equal-channel angular extrusion on the impact toughness of aluminum 1100 and brass C26000 was investigated.
Wang, Jyhwen   +3 more
openaire   +1 more source

Tempforming as an Advanced Processing Method for Carbon Steels

open access: yesMetals, 2020
The microstructural mechanisms providing delamination toughness in high-strength low-alloyed steels are briefly reviewed. Thermo-mechanical processing methods improving both the strength and impact toughness are described, with a close relation to the ...
Anastasiya Dolzhenko   +2 more
doaj   +1 more source

The Role of Splitting Phenomenon under Fracture of Low-Carbon Microalloyed X80 Pipeline Steels during Multiple Charpy Impact Tests

open access: yesApplied Mechanics, 2022
The ambiguity of the splitting effect on X80 low-carbon microalloyed pipeline steels’ tendency towards brittle fracture prompted an experimental study of impact toughness scattering based on multiple Charpy impact tests in a temperature range from 20 °C ...
Matvey Matveevich Kantor   +3 more
doaj   +1 more source

Low temperature impact toughness of structural steel welds with different welding processes

open access: yesKSCE Journal of Civil Engineering, 2015
Influence of welding process and welding consumable on the impact toughness at low temperatures of the Heat Affected Zone (HAZ) and the weld metal in a structural steel weldment was investigated. A comparison of the low temperature impact toughness was made between the welded joints fabricated by Shielded Metal Arc Welding (SMAW) and Flux Cored Arc ...
Hyun-Seop Shin   +4 more
openaire   +1 more source

The Influence of Spheroidizing Annealing Process on the Microstructure and Low-Temperature Impact Toughness of Q235 Steel Used in Coal Explosion-Proof Equipment

open access: yesMetals
To improve the low-temperature impact toughness of Q235B steel, this paper adopts a heat treatment method combining quenching and spheroidizing annealing to enhance its microstructure and properties and conducts a detailed analysis of the evolution of ...
Hongkui Zhang   +3 more
doaj   +1 more source

Effect of temperature on impact toughness of nuclear grade low-carbon tubular steel

open access: yesMaterials Research Express
In this study, the low-temperature impact toughness and tensile properties of nuclear grade low carbon tubular steel were systematically studied. A comparative discussion was conducted on the quantitative relationships between temperature and impact ...
Dongsheng Li   +3 more
doaj   +1 more source

Determination of low temperature toughness index of X80 unequaldiameter tee in stations of China-Russia Eastern Gas Pipeline

open access: yesYou-qi chuyun, 2020
To address the fracture control problem of X80 unequal-diameter tee used in China-Russia Eastern Gas Pipeline under low temperature environment (-45 ℃), the finite element model for X80 unequal-diameter tee with defects was built taking into ...
Zeguang YOU   +3 more
doaj   +1 more source

Effect of Quenching Cooling Method on Low-temperature Impact Toughness of 20Cr1Mo1VTiB High Temperature Bolting Steel

open access: yesTeshugang, 2023
The effect of quenching cooling method on the mechanical properties of 20Cr1Mo1VTiB steel bar after overall heat treatment was studied through microstructure test methods such as mechanical property test, scanning electron microscope (SEM), transmission ...
Gong Xueting   +3 more
doaj  

Effect of Segregation Band on the Microstructure and Properties of a Wind Power Steel before and after Simulated Welding

open access: yesMetals
This article uses scanning electron microscopy (SEM) and electron back-scattering diffraction (EBSD) to study the effect of C and Mn segregation on the microstructure and mechanical properties of high-strength steel with 20 mm thickness used for wind ...
Xuelin Wang   +3 more
doaj   +1 more source

Achieving superior low-temperature toughness in high-strength low-carbon steel via controlling lath boundary segregation

open access: yesJournal of Materials Research and Technology, 2023
The optimal aging temperatures of 400–550 °C for high strength steels falls into the dangerous temperature range of temper-embrittlement. To obtain a good low-temperature toughness, temperatures above 600 °C are usually selected for aging treatments ...
Xinghao Wei   +7 more
doaj   +1 more source

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