Results 1 to 10 of about 56,097 (240)

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

Journal 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, Chunlei Shang, Hong-Hui Wu, Guoqiang Ma, Shuize Wang, Guilin Wu, Junheng Gao, Yimian Chen, Jinyong Zhang, Jiaming Zhu, Xinping Mao   +10 more
doaj   +2 more sources

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

Metals, 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, Pai-Xian Fu, Hong-Wei Liu, Hang-Hang Liu, Ning-Yu Du   +4 more
doaj   +2 more sources

Maintaining modulus of polypropylene composites with ultra-high low temperature toughness by synergistic branched polyethylene and nucleating agents

Journal of Materials Research and Technology, 2023
In this work, the synergistic effect of highly branched polyethylene (HBPEs, s = 1, 2) elastomers featuring dendritic structure and α-type nucleating agents (NA1, NA2) on the toughness and stiffness of block polypropylene (PP–B) was investigated.
Qingyue Shen, Xulan Liu, Ran Zhao, Feng Guo, Zepeng Mao, Shuangjun Chen   +5 more
doaj   +2 more sources

Effects of Quenching and Tempering Heat Treatment Processing on the Microstructure and Properties of High-Strength Hull Steel

Metals, 2022
The construction of heavy polar icebreakers is usually done with special hull steels, which require comprehensive properties such as good low-temperature toughness, high strength, and superior fatigue resistance.
Hongmei Zhang, Mingshuai Huo, Zhiqiang Ma, Hui Wu, Guanqiao Su, Lianjie Li, Tao Zhang, Fei Lin, Fenghua Chen, Zhengyi Jiang   +9 more
doaj   +1 more source

Research Status of Ultra-low Temperature Pressure Vessel Steel [PDF]

Teshugang
 Steel for ultra-low-temperature pressure vessel is steel specifically applied to liquid nitrogen （-196 ℃） and below， and requiring sufficient mechanical strength and toughness under extreme low-temperature conditions.
Cao Lujun, Zhou Yucheng, Sun Shihao, Hu Jikang
doaj   +3 more sources

Development of new 7%Ni steel for LNG storage tanks

You-qi chuyun, 2021
Considering the scarcity of nickel in China and cost-saving for construction of LNG storage tanks, it is very significant to develop a new generation of low-nickel steel for storage tanks.
Kaili CHEN, Lianyun XI, Zhanglong XIE, Junping WU, Wunong FANG   +4 more
doaj   +1 more source

Effect of Nitrogen Content and Final Rolling Temperature on Low-temperature Impact Toughness of Titanium Microalloyed High-strength Steel CGLC700 [PDF]

Teshugang
Aiming at the problem of poor low-temperature impact toughness of titanium microalloyed high-strength steel CGLC700， by thermodynamic calculations and high-temperature in-situ observations， as well as the use of electron backscattering diffraction ...
Chen Yufeng, Zhang Junfen, Xue Qihe, Bai Jun, Yang Shufeng, Li Jingshe   +5 more
doaj   +2 more sources

Improvement in low-temperature toughness of Fe-6.5Mn-0.08C Medium-Mn steel by multi-step heat treatment

Journal of Materials Research and Technology, 2023
In this study, a novel multi-step heat treatment method, including intercritical annealing and tempering, is proposed to improve the low-temperature toughness of Fe-6.5Mn-0.08C medium-manganese (Mn) steel.
Seung-Hyeok Shin, Young-Chul Yoon, Sang-In Lee, Byoungchul Hwang   +3 more
doaj   +1 more source

Effect Mechanism of Curling Temperature on the Toughness of Titanium Microalloyed High-strength Steel GCL700 [PDF]

Teshugang
The effect of curling temperature on the mechanical properties of Ti microalloyed high-strength steels was investigated using electron backscatter diffraction， transmission electron microscopy， scanning electron microscopy and mechanical experiments.The ...
Wang　Yi, Che　Zhichao, Chen　Yufeng, Yang　Shufeng, Zhang　Junfen, Xue　Qihe, Li　Jingshe
doaj   +3 more sources

Mg effect on the cryogenic temperature toughness of Al-Mg alloys

Materials & Design, 2022
In this study, the Mg and temperature effects on cryogenic impact toughness of Al-Mg alloys are investigated. Cryogenic Charpy impact tests are conducted for several Al-Mg alloys: AA5083 (=reference), Al-6 Mg, Al-8 Mg, and Al-8.5 Mg.
Kwangtae Son, Michael E. Kassner, Tae-Kyu Lee, Ji-Woon Lee   +3 more
doaj   +1 more source