Results 81 to 90 of about 22,923,337 (261)

Two‐Stage Isothermal Transformation of Austenite into Nanobainite in a Chemically Inhomogeneous Medium‐Alloy Steel Containing 0.5 wt% C

open access: yessteel research international, EarlyView.
The effect of chemical inhomogeneity on the microstructure and properties of nanobainitic steel is investigated. A two‐stage isothermal heat treatment that produced a more uniform microstructure is designed. The first‐stage temperature is higher than the MS of depleted bands; conversely, the second‐stage temperature is lower than the first‐stage ...
Bogdan Garbarz   +5 more
wiley   +1 more source

Credibility of various plastometric methods in simulation of hot rolling of the steel round bar

open access: yesMetalurgija, 2014
Rolling of round bar made of steel 32CrB4 was simulated physically. The interrupted torsion test led to the final microstructure with coarser grains, however, thanks to comparatively large dimensions of the sample this type of experiment was not so ...
P. Kawulok   +6 more
doaj  

A YOLO11-Based Method for Segmenting Secondary Phases in Cu-Fe Alloy Microstructures

open access: yesInformation
With the development of industrialization, the demand for high-performance metal materials has increased, and copper and its alloys have been widely used. The microstructure of these materials significantly affects their performance.
Qingxiu Jing   +6 more
doaj   +1 more source

Substitution of Ti by Nb in Maraging Steel: Effects on Strengthening Mechanisms and Crystallographic Behavior

open access: yessteel research international, EarlyView.
This work demonstrates that replacing Ti with Nb in maraging steel forms nanoscale Nb–Mo particles along boundaries, strengthening the alloy without relying on Ti phases. Heat‐treatment tuning promotes uniform crystal orientation and balanced grain boundaries, enabling strong yet ductile behavior.
Mohamad Masoumi   +14 more
wiley   +1 more source

Influence of welding current in resistance spot welding on the properties of Zn coated steel DX51D [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2016
The paper deals with the resistance spot welding of three galvanized car body sheets DX51D + Z - EN 10142/2000. The quality of welded joints was evaluated by destructive tests and non-destructive tests.
Luboš Kaščák   +2 more
doaj  

Burial of a Man-At-Arms in Kudash I Burial Ground

open access: yesПоволжская археология, 2017
The article features a comprehensive analysis of items discovered in male burial 160 of Kudash I burial ground – a unique source of materials for the research of interactions between the local and foreign population on the Middle Kama region in 3rd – 5th
Kazantseva Olga A. , Nagiev Zaur Sh.
doaj   +1 more source

In Situ Investigation of Microstructure Evolution and Stress Generation During Low‐Pressure Carburizing and Quenching by Means of Synchrotron X‐Ray Diffraction

open access: yessteel research international, EarlyView.
This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar   +6 more
wiley   +1 more source

Microstructure Evolution in Directionally Solidified Fe–C–Mn–(Si) Peritectic Steels

open access: yessteel research international, EarlyView.
This study investigates how growth velocity and silicon additions affect dendritic morphology, primary arm spacing, and mushy‐zone evolution in directionally solidified quaternary peritectic steels. Silicon substantially broadens the freezing range and lengthens the mushy zone, increasing susceptibility to interdendritic cracking.
André Phillion   +4 more
wiley   +1 more source

Research on Influential Mechanism of HAZ Impact Toughness for Shipbuilding Steel with Mg Addition

open access: yesMetals, 2018
The welding performance of shipbuilding steel under large heat input could be improved greatly by the addition of Mg to the steel, but the impact toughness of the heat affect zone (HAZ) is not stable.
Hui-rong Li   +4 more
doaj   +1 more source

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