Results 11 to 20 of about 887 (181)

Acicular Ferrite in Micro Welding Technologies

open access: yesArchives of Metallurgy and Materials, 2014
Laser jest szeroko stosowany w mikro-spawaniu. Oprócz tej metody, spawanie z chłodzeniem mikrojetowym powinno być traktowane jako ważna metoda spawania cienkościennych konstrukcji.
Węgrzyn T., Piwnik J., Hadryś D.
doaj   +2 more sources

Effect of Cr Content on Microstructure and Mechanical Properties of Low Carbon Steel Welds

open access: yesInternational Journal of Electrochemical Science, 2015
The effect of Cr content on the formation of acicular ferrite was investigated in low carbon steel welds where submerged arc welding was performed. Three specimens with different Cr content were fabricated and their properties were evaluated.
Hee-jin Lee, Hae-woo Lee
doaj   +1 more source

Microstructure Characteristics and Mechanical Properties of Flash Butt Welded 590 MPa V-N Microalloyed Heavy-Duty Truck Wheel Steel

open access: yesMetals, 2023
This study reports the welded joint of a novel 590 MPa V-N microalloyed wheel steel on microstructure and mechanical properties after flash butt welding.
Cairu Gao   +7 more
doaj   +1 more source

Transformation of M/A Constituents during Tempering and Its Effects on Impact Toughness of Weld Metals for X80 Hot Bends

open access: yesAdvances in Materials Science and Engineering, 2019
Impact toughness of the weld metal is one of the important factors affecting the quality of hot bends, which is strongly dependent on the microstructure transformation during hot bending and tempering.
Gui-ying Qiao   +5 more
doaj   +1 more source

Effect of Heat Input on Microstructure and Corrosion Behavior of High Strength Low Alloy Steel Welds

open access: yesInternational Journal of Electrochemical Science, 2021
High strength low alloy (HSLA) steel was welded by metal active gas arc welding (MAG), and the effect of heat input on microstructure and corrosion behavior of HSLA welds was investigated by optical microscope (OM), scanning electron microscopy (SEM ...
Hua Qin, Yingchun Tang, Ping Liang
doaj   +1 more source

Laboratory- and Semi-Industrial-Scale Thermomechanical Processing of TRIP-Aided Steel with Acicular Ferrite

open access: yesApplied Sciences, 2021
The modification of the deformation and cooling methods resulting in the obtainment of acicular ferrite promotes an increase in the proportion of retained austenite (RA) and a corresponding increase in mechanical properties in Si-Al TRIP-aided steel. The
Adam Skowronek, Adam Grajcar
doaj   +1 more source

Scanning Tunneling Microscopy of Intermediate Transformation Structures in Electric Arc Surfacing Modified with Titanium Carbonitrides on Pipe Steel

open access: yesCrystals, 2023
In the present paper, the structure of electric arc coatings modified with nanodispersed titanium carbonitride additives on low-carbon pipe steel is studied using optical, scanning tunneling, and transmission electron microscopy.
Kuznetsov Pavel   +2 more
doaj   +1 more source

Characterization of Microstructure in High-Hardness Surface Layer of Low-Carbon Steel

open access: yesMetals, 2020
Surface hardening improves the strength of low-carbon steel without interfering with the toughness of its core. In this study, we focused on the microstructure in the surface layer (0–200 μm) of our low-carbon steel, where we discovered an unexpectedly ...
Haitao Xiao   +6 more
doaj   +1 more source

Microstructure and inclusion evolution in rare earth treated C-Mn steel

open access: yes工程科学学报, 2015
The microstructure and inclusions in rare earth treated C-Mn steel were studied,the size distribution of the nuclei inducing acicular ferrite nucleation was subjected to statistical analysis,and the formation and growth processes of rare earth inclusions
SONG Ming-ming   +5 more
doaj   +1 more source

Effect of forging load and heat treatment process on the corrosion behavior of A588-1%NI for weathering steel application in a marine environment

open access: yesJurnal Ilmiah SINERGI, 2022
The study focused on the effect of forging load and heat treatment on the corrosion behavior of A588-1%Ni weathered steel. The samples used were hot forged steel (A588%-1%Ni) with a load of 50 tons and 75 tons at a temperature of 800-850 °C.
Miftakhur Rohmah   +2 more
doaj   +1 more source

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