Results 61 to 70 of about 10,087 (226)

Underwater Wet Repair Welding of API 5L X65M Pipeline Steel

Polish Maritime Research, 2017
This paper presents results of the research of effect of polymer insulation of pipeline made of API 5L X65M steel as well as underwater wet welding parameters on properties of joints made by covered electrodes.
Rogalski Grzegorz, Fydrych Dariusz, Łabanowski Jerzy   +2 more
doaj   +1 more source

Nine percent nickel steel heavy forging weld repair study [PDF]

The feasibility of making weld repairs on heavy section 9% nickel steel forgings such as those being manufactured for the National Transonic Facility fan disk and fan drive shaft components was evaluated.
Berry, R. F., Jr., Brooks, T. G., Gerringer, A. H., Young, C. P., Jr.   +3 more
core   +1 more source

Моделирование процессов межфазного взаимодействия при электродуговой сварке и наплавке под флюсом [PDF]

, 2011
Показано, що для оцінки металургійних властивостей флюсів при електродуговому зварюванні у більшості моделей обмежуються розглядом реакції шлак-метал, що суперечить фізичній моделі електродугового зварювання під флюсом.

core  

Recent Advances in Recycling of Copper‐Based Waste Materials: A Critical Review

cMat, Volume 2, Issue 2, June 2025.
ABSTRACT Copper plays a crucial role in the civilization of our lives. This review examines the flow of copper from the mining of ores to the end‐of‐life product, with particular emphasis on the recovery and re‐functionalization of copper and copper‐containing wastes. Beginning with the analysis of the global copper market, reserves, supply, and demand,
Rui‐Ting Zhan, Hong‐Bo Zhang, Jian‐Nan Pei, Hao Yang, Wang Lu, Pei‐Yuan Ye, Bo He, Shi‐Long Luo, Zhou‐Guang Lu, Feng Jiang, Zheng‐He Xu   +10 more
wiley   +1 more source

Waste-based consumable for hardfacing by welding: a look from the Circular Economy

Dyna
In the present work, the obtaining of a consumable for the restore parts by welding from the perspective of the circular economy is addressed, using industrial solid residuals (slag from steel production, graphite from fragments of electrodes of arc ...
Azucena Elizabeth Bernal-Gutiérrez, Carmen Isabel Ulloa-Méndez, Rodolfo Najarro-Quintero, Amado Cruz-Crespo, Lorenzo Perdomo-González, Alejandro Duffus-Scott   +5 more
doaj   +1 more source

Langley Research Center Standard for the Evaluation of Socket Welds [PDF]

, 1985
A specification utilized for the nondestructive evaluation of socket type pipe joints at Langley Research Center (LaRC) is discussed. The scope of hardware shall include, but is not limited to, all common pipe fittings: tees, elbows, couplings, caps, and
Berry, R. F., Jr.
core   +1 more source

Advancing aqueous zinc‐ion batteries with carbon dots: A comprehensive review

EcoEnergy, Volume 3, Issue 2, Page 254-295, June 2025.
Carbon dots (CDs), with their distinctive structure and superior electrochemical properties, represent an innovative class of carbon‐based materials with broad potential applications for optimizing aqueous zinc‐ion batteries (AZIBs) performance. This comprehensive review highlights the potential application of CDs in AZIBs.
Mingying Chen, Junjie Ma, Yanhong Feng, Quanping Yuan, Yinghong Wu, Yifan Liu, Guangzhi Hu, Xijun Liu   +7 more
wiley   +1 more source

STUDENT WELDING SKILL COMPETITION DEVELOPMENT MODEL WITH KKNI AND COMPETENCY CERTIFICATION APPROACH IN VOCATIONAL SCHOOL [PDF]

, 2014
This study aims to (1) obtain a model of the organization of the Student Welding Skill Competition, (2) determine the organization of the Student Welding Skill Competition model implementation, (3) determine the management of the Student Welding Skill ...
Arif, Marwanto, Putut, Hargiyarto, Riswan Dwi, Djatmiko   +2 more
core  

Use of frit-disc crucibles for routine and exploratory solution growth of single crystalline samples [PDF]

, 2015
Solution growth of single crystals from high temperature solutions often involves the separation of residual solution from the grown crystals. For many growths of intermetallic compounds, this separation has historically been achieved with the use of ...
Canfield, Paul, Canfield, Paul, Jo, Na Hyun, Kaluarachchi, Udhara, Kong, Tai   +4 more
core   +4 more sources

Assessing Groundwater Potential in the Ziway Lake Watershed Using Geographical Information System, Analytic Hierarchy Process, and Drinking Water Quality Index

Global Challenges, Volume 9, Issue 6, June 2025.
This study identifies groundwater potential zones in Ethiopia’s Ziway Lake watershed using GIS and the SWAT model. Over half the area shows moderate to very high potential. Nearly 40% of high‐potential zones also have good to excellent water quality. The results offer a practical tool for sustainable groundwater management, with potential application ...
Tariku Takele, Abraham Mechal, Berihu Abadi Berhe   +2 more
wiley   +1 more source