Results 11 to 20 of about 14,573,304 (284)

Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel [PDF]

open access: yesMetals, 2018
Effects of tempering temperature on the microstructures and low temperature impact toughness of 42CrMo4-V steel were investigated. Microstructures of 42CrMo4-V steel after tempering at 570–720 °C for 3 h were experimentally investigated using scanning ...
Chen Sun   +4 more
doaj   +5 more sources

Effect of tempering temperature on low-temperature impact toughness of 35MnB steel

open access: yesJournal of Materials Research and Technology
Medium carbon boron steel is a cost-effective, high-strength steel used for bolts. This paper aims to provide a theoretical foundation and data support for optimizing heat treatment and improving performance in wind turbine bolts by systematically ...
Ping Ni   +4 more
doaj   +5 more sources

Mechanism Analysis for the Enhancement of Low-Temperature Impact Toughness of Nodular Cast Iron by Heat Treatment. [PDF]

open access: yesMaterials (Basel)
The low-temperature impact toughness of nodular cast iron can be significantly enhanced by heat treatment, and thus meet the severe service requirements in the fields of high-speed rail and power generation, etc. In order to explore the enhancement mechanism, microstructure, hardness, composition and other characteristics of as-cast and heat-treated ...
Zhuang H, Shen J, Yu M, An X, Hu J.
europepmc   +3 more sources

Impact Toughness Modification of NIST Low-Energy Charpy Verification Specimens for Testing at Room Temperature

open access: yesJournal of Research of the National Institute of Standards and Technology, 2017
The possibility for the National Institute for Standards and Technology (NIST) to certify Charpy reference specimens for testing at room temperature (21 °C ± 1 °C) instead of −40 °C was investigated in a previous study, in which a slightly increased likelihood of specimen jamming was observed at the low-energy level (13 J to 20 J). Moreover, there is a
Enrico, Lucon, Ray L, Santoyo
core   +4 more sources

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   +2 more sources

Simulation of impact toughness with the effect of temperature and irradiation in steels

open access: yesNuclear Engineering and Technology, 2019
One of the important requirements for the application of reduced activation ferritic/martensitic steel is to retain proper mechanical properties in irradiation and high temperature conditions.
Chenchong Wang   +4 more
doaj   +3 more sources

Low temperature impact toughness of the main gas pipeline steel after long-term degradation [PDF]

open access: yesOpen Engineering, 2014
AbstractThe correlation of microstructure, temperature and Charpy V-notch impact properties of a steel 17G1S pipeline steel was investigated in this study. Within the concept of physical mesomechanics, the dynamic failure of specimens is represented as a successive process of the loss of shear stability, which takes place at different structural/scale ...
Maruschak Pavlo   +3 more
doaj   +3 more sources

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

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   +2 more sources

A review on the advance of low-temperature toughness in pipeline steels

open access: yesJournal of Materials Research and Technology, 2023
The escalating global demand for energy resources, particularly oil and natural gas, underlines the critical need for enhancing the performance of pipeline infrastructure.
Penghui Bai   +10 more
doaj   +1 more source

High strength low-alloy steels impact toughness assessment at different test temperatures [PDF]

open access: yesAdvanced Technologies & Materials, 2021
In many production processes, as well as in the exploitation of machine components and structures, materials are exposed to impact loads. In structures made of welded joints of high strength low-alloy steels with their constituents (parent metal, weld metal and heat-affected-zone), the toughness test determines the tendency of steel to brittle fracture,
Srđan Bulatović   +3 more
openaire   +2 more sources

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