Results 31 to 40 of about 460 (108)

TiN-containing high-heat-input welding steels: Optimizing Ti/N ratio and precipitation temperature for enhanced low-temperature impact toughness in coarse-grained heat-affected zones

open access: yesJournal of Materials Research and Technology
To enhance the low-temperature impact toughness of the coarse-grained heat-affected zone (CGHAZ) in high-heat-input welding steels, TiN-containing steels with tailored Ti and N contents were designed.
Junjie Hao   +5 more
doaj   +1 more source

Effect of Post-Weld Heat Treatment on -20℃ Impact Toughness of Heat Affected Coarse Grain Zone of Steel 07MnCrMoVR

open access: yesTeshugang, 2020
The microstructure and properties of the heat affected coarse grain zone of steel 07MnCrMoVR with post¬weld heat treated at 460 ~ 660 °C for 2 h are analyzed by means of optical microscope, scanning microscope, transmission electron microscope and impact
冯路路, 乔文玮, 鲁修宇, 周峰
doaj  

Low Temperature Impact Toughness of Hot Rolled Steel Sheet Pile SY390BZ

open access: yesTeshugang, 2011
Material for test of hot rolled steel sheet pile SY390BZ (% : 0. 23C, 0.44Si, 0.91Mn, 0.06V, 0.010P 0. 002S) is melted by a 55 kg vacuum induction furnace, cast to Φ170 mm round ingot, rolled to 12 mm sheet with 20% reduction in last flat pass and ...
任安超   +6 more
doaj  

Low temperature impact toughness and fracture mechanism of cast QT400-18L ductile iron with different Ni additions [PDF]

open access: yesChina Foundry, 2013
Different contents of Ni (0.3wt.% to 1.2wt.%) were added to the QT400-18L ductile iron to investigate the effect of Ni addition on the impact toughness of cast ductile irons at low temperatures.
Zhang Xinning   +2 more
doaj  

Development of 10.9 Grade 32CrB4 Quenched and Tempered Round Steel for Fasteners [PDF]

open access: yesTeshugang
There is an urgent need to develop low-cost, high-strength, and toughness grades of steel for domestic wind power fasteners in order to enhance the competitiveness of the industrial chain and fully participate in market competition.
Peng Feng, Li Xu, Li Bopeng, Zhang Yue, Wang Zhanzhong, Guo Shibei
doaj   +1 more source

Effect of Heat Treatment Technique on the Low Temperature Impact Toughness of Steel EQ70 for Offshore Structure

open access: yesHigh Temperature Materials and Processes, 2017
AbstractCircle quenching and tempering (CQ&T), intercritical quenching and tempering (IQ&T) and regular quenching and tempering (Q&T) were used to study the influence of heat treatment techniques on the low temperature impact toughness of steel EQ70 for offshore structure. The steels with 2.10 wt. % Ni (steel A) and 1.47 wt.
Su-Fen Tao   +4 more
openaire   +1 more source

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

open access: yesMaterials
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 ...
Huanyu Zhuang   +4 more
openaire   +2 more sources

Dynamic Plastic Deformation Mechanism of 301 Stainless Steel at Low Temperatures

open access: yesGaoya wuli xuebao
Deep space exploration faces challenges from extreme temperatures and complex high-speed operating environments, placing higher demands on the low-temperature impact resistance of materials.
Tingting HUANG   +5 more
doaj   +1 more source

Effects of (Ti, Mo)C precipitation on the microstructure, impact toughness, and sulfide stress corrosion cracking resistance of linepipe steels

open access: yesJournal of Materials Research and Technology
There is a growing need to develop high-performance linepipes owing to the accelerated resource depletion attributable to the increasing interest in mining in extreme environments.
Seoyoon Gong   +4 more
doaj   +1 more source

New insights from crystallography into the effect of Ni content on ductile-brittle transition temperature of 1000 MPa grade high-strength low-alloy steel

open access: yesJournal of Materials Research and Technology
The significant effect of Ni content (0.92, 1.94 and 2.94 wt%) on ductile-brittle transition temperature (DBTT) and microstructure in a 1000 MPa grade high-strength low-alloy (HSLA) steel was studied.
Zeqing Ni   +4 more
doaj   +1 more source

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