Role of the micro/macro structure of welds in crack nucleation and propagation in aerospace aluminum-lithium alloy [PDF]
Al-Li alloys offer the benefits of increased strength, elastic modulus and lower densities as compared to conventional aluminum alloys. Martin Marietta Laboratories has developed an Al-Li alloy designated 2195 which is designated for use in the cryogenic
Talia, George E.
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Simulation of a Gas Tungsten Arc Welding Process in COMSOL [PDF]
, 2012 The purpose of this project is to model the transport phenomena (heat transfer, fluid flow, and current flow) in a gas tungsten arc welding (GTAW) process using COMSOL Multiphysics.
Hu, Junling, Yang, Xiang
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Method for defect free keyhole plasma arc welding [PDF]
, 1993 A plasma arc welding process for welding metal of increased thickness with one pass includes operating the plasma arc welding apparatus at a selected plasma gas flow rate, travel speed and arc current, to form a weld having a penetration ratio to weld ...
Fisher, Walter J. +3 more
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FEATURES OF VENTILATION OF ARC WELDING WORKPLACES IN SMALL ROOMS
, 2022 Владимир Шаптала +3 more
openalex +2 more sources
Shaping the human face: Periosteal bone modeling across ontogeny
The Anatomical Record, Volume 309, Issue 2, Page 271-292, February 2026.Abstract Facial morphology is a defining aspect of Homo sapiens that distinguishes our species from fossil ancestors and plays a central role in estimating age, sex, and ancestry in both past and present populations. Understanding how the face develops during postnatal ontogeny is essential for interpreting adult facial variation.
Sarah E. Freidline +5 more
wiley +1 more source
Characteristics and performance of the variable polarity plasma arc welding process used in the Space Shuttle external tank [PDF]
Significant advantages of the Variable Polarity Plasma Arc (VPPA) Welding Process include faster welding, fewer repairs, less joint preparation, reduced weldment distortion, and absence of porosity.
Hung, R. J., Lee, C. C., Liu, J. W.
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Развитие электродуговой сварки [PDF]
, 2011 Приведены исторические сведения об открытии сварочной дуги и ее применении, основоположниках и научных направлениях в развитии электродуговой сварки, а также подготовке кадров.Historical information is resulted about discovery of welding arc and its ...
Литвинов, А. П. +1 more
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Perchloric Acid, an Effective Catalyst for Thermosetting Self‐Crosslinking Hydroxy Acrylic Resins
Journal of Applied Polymer Science, Volume 143, Issue 4, January 20, 2026.Perchloric acid is an effective catalyst for the crosslinking of hydroxy acrylate resins. Its action is based on the intermediate formation of alkyl perchloric esters. Transesterification gives volatile alkyl perchlorates that evaporate to give a catalyst‐free resin.
Patrick Wienefeld, Gerrit A. Luinstra
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Comparative study of electrogas and shielded metal arc welding processes on steel A537 welded joints
Materials Research ExpressIn this research, the electro-gas welding process was compared with a shielded metal arc welding process for welding steel A573 from a mechanical properties point of view.
Mahmoud Abbas +3 more
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Plastic Behavior and Design Methodology for Curved Members in Seismic Applications
JAPAN ARCHITECTURAL REVIEW, Volume 9, Issue 1, January–December 2026.This study investigated the plastic behavior of curved members through static analysis and extensive parametric studies, focusing on initial elastic stiffness, plastic strength, slenderness effects, and section compactness. Estimation equations were developed and validated, contributing to the development of a connection design methodology that ...
Kun‐Sian Lin +2 more
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