Results 1 to 10 of about 130,649 (289)

Research progress in metal-oxide supported on graphene as catalysts in oxygen reduction reaction

Cailiao gongcheng, 2023
Catalysts have an essential effect on oxygen reduction reactions(ORR). In recent years, many efforts have been made to search high-performance non precious metal catalysts that can replace Pt metals.
WANG Jun, DU Zhenzhen, WANG Jing, YU Fan, WANG Xudong, LI Jiongli   +5 more
doaj   +1 more source

Study on the impact wear mechanism and damage modes of compacted graphite cast iron

Journal of Materials Research and Technology, 2022
The impact wear mechanism of compacted graphite cast iron (CGI) at different temperatures (room temperature, 300 °C, 400 °C, and 500 °C) and impact frequencies (10 Hz, 12 Hz, and 14 Hz) was analyzed.
Yue Wu, Jianping Li, Hua Chen, Zhong Yang, Yongchun Guo, Minxian Liang   +5 more
doaj   +1 more source

Creep deformation and damage mechanism of compact graphite cast iron with different pearlite contents

Journal of Materials Research and Technology, 2023
The creep deformation and damage mechanism of compacted graphite cast iron (CGI) with varying pearlite contents were studied at 450 °C, 500 °C, and 550 °C, with accompanying stress ranges from 40 MPa to 150 MPa.
Wu Yue, Li Jianping, Chen Hua, Ma Zhijun, Yang Zhong, Guo Yongchun, Liang Minxian   +6 more
doaj   +1 more source

The damage mechanism of tension-tension fatigue interaction with creep damage of the compacted graphite cast iron alloy at high temperatures

Materials Research Express, 2023
The tension-tension fatigue test of the compacted graphite cast iron (CGI) alloy was carried out by RDL100 universal testing at 500 °C and 550 °C, respectively. A tension-tension trapezoidal load is applied to the CGI specimen.
Wu Yue, Pei Zehui, Ma Zhijun, Yang Zhong, Guo Yongchun, Liang Minxian, Li Jianping, Chen Hua   +7 more
doaj   +1 more source

Inhibition characteristics research of aluminum alloy polishing dust explosion through addition of ultrafine Al(OH)3 inerting agent

Heliyon, 2023
Investigations into the deactivation of explosion sensitivity and reduction of flame propagation for aluminium alloy polishing wastes were carried out by the addition of ultrafine Al(OH)3 inerting agent.
Chen Lv, Xinqun Wang, Sheng Xue, Xinxing Xia, Shuang Wang   +4 more
doaj   +1 more source

Multi-Objective Lightweight Optimization Design of the Aluminium Alloy Front Subframe of a Vehicle

Metals, 2023
The aluminium alloy front subframe of an automobile was developed through multi-operating condition topology optimization and multi-objective optimization methods. By considering the influences of loads on the strength, static stiffness, and modal of the
Xiangchao Meng, Youping Sun, Jiangmei He, Wangzhen Li, Zhifeng Zhou   +4 more
doaj   +1 more source

Influence of the Duration and Temperature of the Al-Fin Process for the Cast Iron Insert on the Microstructure of the Bimetallic Joint Obtained in the Piston Casting Process

Metals, 2023
The aim of this work was to determine the effect of the duration and temperature of the Al-Fin process for casting the bimetallic joint on the formation of the metallurgical bond between the AlSi9 aluminium alloy piston and the cast iron insert ...
Krzysztof Szwajka, Joanna Zielińska-Szwajka, Tomasz Trzepieciński   +2 more
doaj   +1 more source

Web Crippling Behaviour of High-Strength Aluminium Alloy Channel Sections under Concentrated Loading: Numerical Modelling and Proposed Design Rules

Buildings, 2023
Two types of high-strength aluminium alloy (HA)—namely, AA-6086 and 7075-T6—have been developed and extensively used in recent years. These high-strength aluminium alloys offer advantages such as lower prices and higher yield strength than traditional ...
Gang Sun, Xiao-Yong Sun, Jian-Hang Fu
doaj   +1 more source

Calculation and Prediction of Crushing Process of Al–Mg–Si Alloy Thin-Walled Components

Metals, 2020
Crushing performance is being widely investigated because it is the key performance indicator of the thin-walled beam structure in automobile safety components.
Hui Guo, Yunlai Deng, Shitong Fan, Renjie Pan   +3 more
doaj   +1 more source

Effect of thermal exposure on microstructure and high-temperature fatigue life of Al-Si piston alloys

Journal of Materials Research and Technology, 2020
A very effective approach is proposed here to increase the high-temperature fatigue life of an Al-Si piston alloy. Compared with traditional T6 heat treatment, the high-temperature fatigue life can be improved by three times of magnitude with thermal ...
F. Xia, X.S. Gao, M.X. Liang, Y.C. Guo, J.P. Li, Z. Yang, J.L. Wang, L.L. Zhang   +7 more
doaj   +1 more source