Results 41 to 50 of about 1,260 (138)

Defects, Microstructure, and Hardness of As-Built and Heat-Treated 13 Hot Work Tool Steel and 17-4 PH Stainless Steel Obtained by Fused Filament Fabrication

open access: yesJournal of Manufacturing and Materials Processing
Fused Filament Fabrication (FFF) is a low-cost additive manufacturing process that produces metallic parts from printing with a metal-polymer filament, followed by a debinding–sintering process.
Morgane Mokhtari   +5 more
doaj   +1 more source

Uso da técnica de dilatometria no estudo do efeito de diferentes aditivos na sinterização de Si3N4 Use of dilatometry to study the effect of different additives on the sintering of Si3N4

open access: yesCerâmica, 2000
Nos últimos anos vem sendo testados óxidos de terras raras pesadas como aditivos de sinterização, via fase líquida, do nitreto de silício (Si3N4). Este trabalho visou o estudo do comportamento da sinterização do Si3N4 aditivado com um concentrado de ...
S. Ribeiro   +2 more
doaj   +1 more source

In Situ Alloying of H13 Tool Steel With TiC via PBF‐LB/M

open access: yessteel research international, EarlyView.
H13 tool steel is in situ alloyed with titanium carbides (TiC) in amounts up to 30 wt.%. This approach offers the advantage that the carbides melt only partially during processing, preventing excessive carbon enrichment of the steel matrix. The resulting microstructure consists of coarse, undissolved and fine, reprecipitated carbides, leading to grain ...
Oliver Bürgi   +2 more
wiley   +1 more source

Exploiting Residual Elements Arising from Scrap Steel in Future Sustainable Steel Alloy Design

open access: yessteel research international, EarlyView.
Herein, the effects of residual elements Cu and Sn on grain growth, recrystallization, and phase transformation in C–Mn steel are summarized, and a case study is presented on how the presence of residual elements can be exploited to reduce deliberate Nb microalloying while achieving the same grain size control and strength during thermomechanical ...
Claire Davis   +5 more
wiley   +1 more source

Effect of Inter-Pass Temperature and Time on Martensite Formation in the Heat-Affected Zone During Multi-Pass Welding of P91 Steel

open access: yesMetals
Dilatometry was used to simulate and analyze martensite formation in the grain-coarsened heat-affected zone (GCHAZ) of P91 steel for high inter-pass temperatures during multi-pass welding.
Druce Dunne, Huijun Li, Elena Pereloma
doaj   +1 more source

Phase Equilibrium and Austenite Decomposition in Advanced High-Strength Medium-Mn Bainitic Steels

open access: yesMetals, 2016
The work addresses the phase equilibrium analysis and austenite decomposition of two Nb-microalloyed medium-Mn steels containing 3% and 5% Mn. The pseudobinary Fe-C diagrams of the steels were calculated using Thermo-Calc.
Adam Grajcar   +3 more
doaj   +1 more source

Investigation with using thermal analysis of gas evolution and sintering of nanopowders of zirconia prepared by sol-gel method

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2020
Thermal and XRD analyses were used to study partially stabilized zirconia powders produced by sol-gel method in order to investigate gas evolution in annealing in air and densification behavior of these powders in compaction and subsequent sintering. It
Е. Шевелева   +3 more
doaj   +1 more source

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

open access: yessteel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi   +3 more
wiley   +1 more source

Microstructure Evolution of Cold-Rolled Carbide-Free Bainite Steel Sheets During Continuous Annealing Process

open access: yesMetals
A modified carbide-free bainite (CFB) steel has been developed, building on existing alloys for compatibility with commercial continuous annealing lines (CALs), featuring a low austenitization temperature and short overaging time.
Bahareh Mobedpour   +2 more
doaj   +1 more source

Experimental determination of continuous cooling transformation diagram for high strength steel X155CrMoV12

open access: yesMetalurgija, 2022
The article is a result of investigations which deals with the phase transformations of tool steel X155CrMoV12. The experimental data obtained was used to evaluate the resulting Continuous Cooling Transform (CCT) diagram, which consists of seven dilation
M. Krbaťa   +6 more
doaj  

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