Results 11 to 20 of about 311,710 (262)

Welding procedure research of white copper heat exchanger [PDF]

open access: yesE3S Web of Conferences, 2021
In order to satisfy the corrosion resistance requirement, the original pipe material of a heat exchanger is replaced by BFe30-1-1white copper. Based on analysis of the welding characteristics, joint structure and factors affecting the welding quality of ...
Chengjun Jiang   +4 more
doaj   +1 more source

A comparative analysis of thermos-mechanical behavior of CNT-reinforced composite plates: Capturing the effects of thermal shrinkage

open access: yesCase Studies in Thermal Engineering, 2022
In this study, an analytical model based on the classical laminate theory (CLT) is developed for the prediction of the effective thermal expansion coefficients (ETECs) of general angle-ply laminates (symmetrical and asymmetrical). The applications of the
Xu-Hao Huang   +4 more
doaj   +1 more source

Research progress of flame retardant modified polycarbonate/acrylonitrile butadiene styrene alloys: a review [PDF]

open access: yesPeerJ Materials Science
This paper focuses on the current status and significance of research on flame-retardant modified polycarbonate/acrylonitrile butadiene styrene alloys (PC/ABS).
Hongwu Zhang   +5 more
doaj   +2 more sources

Fracture failure analysis of the pump shaft [PDF]

open access: yesE3S Web of Conferences, 2020
The failure reasons of the circulating pump shaft in the upper section of the quench tower were analyzed by means of chemical composition analysis, macroscopic observation, metallographic examination and fracture section analysis.
Jiang Chengjun   +3 more
doaj   +1 more source

Fracture analysis of fastening bolt of closing resistance for 1 100 kV GIS circuit breaker

open access: yesZhejiang dianli, 2023
The contact of the closing resistance of a certain 1 100 kV circuit breaker is faulty. Two short bolts are falling off and two long bolts are broken and separated.
SUN Qingfeng   +5 more
doaj   +1 more source

Effect of Corrosion Time on the Corrosion Behavior of N80 Steel in 0.5 MPa CO2 Simulated Oilfield Water [PDF]

open access: yesCailiao Baohu, 2021
At present, the effect of corrosion time on the corrosion behavior of N80 oil casing steel in 0.5MPa CO2 environment has less been studied.By the means of SEM, XRD, EDS and electrochemical test, the effect of corrosion time on the corrosion ...
SHI Yun-sheng, YANG Hong, GAN Lei, DENG Kuan-hai, FAN Chun-ling, LIN Yuan-hua
doaj   +1 more source

Investigation on the water vapor oxidation of Super304H at 600 ℃

open access: yesMaterials Research Express, 2021
Steam oxidation is the main limited factor for the heat-resistant steel in fossil power plant. Disclosing the oxidation mechanism and kinetics could be helpful for the daily inspection to ensure the safety operation.
Zhoufeng Zhao   +7 more
doaj   +1 more source

Effect of Pre-Strain on Crack Growth Behavior of Zr702/TA2/Q345R Composite Plate

open access: yesMetals, 2022
The influence of pre-strain on the fatigue crack growth behavior of Zr702/TA2/Q345R composite plate is studied by experiments and the finite element method.
Binbin Zhou   +6 more
doaj   +1 more source

Advances of Phase-Field Model in the Numerical Simulation of Multiphase Flows: A Review

open access: yesAtmosphere, 2023
The phase-field model (PFM) is gaining increasing attention in the application of multiphase flows due to its advantages, in which the phase interface is treated as a narrow layer and phase parameters change smoothly and continually at this thin layer ...
Jingfa Li, Dukui Zheng, Wei Zhang
doaj   +1 more source

Current status and future prospects of inspection and testing for medium-pressure urban gas pipelines

open access: yes管道保护
To ensure the safe and stable operation of urban gas pipelines, enhance inspection and testing technologies, and promote the development and application of new methods and equipment, the development history of regular pipeline inspections was reviewed ...
Mingjian LIU   +3 more
doaj   +1 more source

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