Results 11 to 20 of about 6,181 (222)

PLASTICITY PROPERTIES OF ADVANCED HIGH-STRENGTH STEEL WELD CONSTRUCTION OF TRANSPORT MEANS – SIMULATION BY THE MESH-FREE METHOD [PDF]

open access: yesTransport Problems, 2022
Advanced high-strength steel (AHSS) is being used increasingly often in the structure of means of transport. Welds made of these steels can crack in the heat-affected zone (HAZ) and have inferior mechanical properties compared to the base material. The
Bożena SZCZUCKA-LASOTA   +4 more
doaj   +1 more source

Investigations on 2Cr13 Stainless Valves after Dry-Type Laser Degumming

open access: yesMicromachines, 2022
The disabled glue on valve surfaces is known to reduce aircraft durability and performance. In this paper, glue contaminants were removed from 2Cr13 stainless valves by dry-type laser processing with a cold air gun and compared with the chemical soaking ...
Guang Li   +9 more
doaj   +1 more source

Analysis of Impact of Chosen Parameters on the Wear of Camshft

open access: yesArchives of Metallurgy and Materials, 2014
The paper provides an analysis of the reasons for excessive wear of the camshafts system components based on models developed to describe the impact of selected material, technological and operational factors.
Burdzik R.   +5 more
doaj   +1 more source

The Effect of Heat Treatment on the Microstructure and Properties of H13ESR Large Mould Steel Forging Round Bar [PDF]

open access: yesTeshugang
In order to meet the technical requirements of H13ESR large sizes and high-quality mould steel forged round metallographic structure and impact energy, three heat treatment processes were used to trial-produce forged round bar with diameter of 600 mm ...
Li Jin, Zhou Xu, Su Chao, Yan Lei
doaj   +1 more source

Non-destructive Evaluation Method of Large-scale Casting Piece Based on Metallographic Structure Statistical Analysis

open access: yesJournal of Aeronautical Materials, 2018
Aimed at the great metallographic structure differences between every part of the large-scale thin-wall complex integral precise titanium alloy casting, a non-destructive evaluation method based on metallographic structure statistical analysis is ...
ZHAO Wenzheng   +4 more
doaj   +1 more source

CHOICE OF TESTING EQUIPMENT FOR ANALYSIS OF THE INDUSTRIAL ALLOYS STRUCTURE

open access: yesЛитьë и металлургия, 2012
The comparison of structure images (steel, cast iron, aluminum alloys) obtained with the help of scanning and metallographic microscopes has been made. The type of a microscopy to be used has been analyzed concerning the study of metallographic sections,
A. G. Anisovich
doaj   +1 more source

Plastic Properties of Fine-Grained WMD After Micro-Jet Cooling

open access: yesArchives of Metallurgy and Materials, 2014
Micro-jet welding is an innovative method of weld forced cooling immediately after welding. It allows to obtain weld with superior properties in comparison to conventional welding.
Hadryś D., Węgrzyn T., Piwnik J.
doaj   +1 more source

Usability of high pressure steam pipelines in thermal power plants for exploitation after the expiry of designed period [PDF]

open access: yesTehnika, 2015
Thermal power plants are constructed of components, especially integrated pipelines, that during the work are exposed at the same time to long-term load (strain), high temperatures in terms of creep, aggressive environment, fatigue and other mechanisms ...
Temelkovska Bratica K.   +1 more
doaj   +1 more source

Properties and Microstructure of Laser Welded Dissimilar Joints of TP347-HFG and S235JR Steels with Additional Material [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
Paper presents results of laser welding of dissimilar joints. Flange pipe joints of austenitic TP347-HFG and low carbon S235JR steels were performed. Possibility of laser girth welding of dissimilar joints was presented.
H. Danielewski   +3 more
doaj   +1 more source

Gas Mixtures for Welding with Micro-Jet Cooling

open access: yesArchives of Metallurgy and Materials, 2015
Welding with micro-jet cooling after was tested only for MIG and MAG processes. For micro-jet gases was tested only argon, helium and nitrogen. A paper presents a piece of information about gas mixtures for micro-jet cooling after in welding.
Węgrzyn T.
doaj   +1 more source

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