Results 51 to 60 of about 607 (184)

Hydrogen‐Enhanced Stress Corrosion Cracking of Wire Arc Additive Manufactured Inconel 625 Superalloy in NaCl Solution: Mechanism of Synergistic Degradation

open access: yesMaterials and Corrosion, EarlyView.
Hydrogen‐enhanced SCC of WAAM Inconel 625 in 3.5 wt.% NaCl solution. Hydrogen charging reduces passive film stability (lower corrosion potential) and promotes pitting at Laves phase/matrix interfaces. Stress corrosion cracks propagate along Laves‐rich regions, leading to quasi‐cleavage brittle fracture.
Xu Zhang   +5 more
wiley   +1 more source

Field Exposure of Duplex Stainless Steel in the Marine Environment: The Impact of the Exposure Zone

open access: yesCorrosion and Materials Degradation
Owing to its corrosion resistance, stainless steel is a sustainable alternative to carbon steel as a structural material in challenging seawater environments. Studies on carbon steel indicate that among all marine corrosion zones (i.e., atmospheric zone,
Saman Hosseinpour   +3 more
doaj   +1 more source

Analysis of Super Duplex Stainless Steel Properties as an Austenite-Ferrite Composite

open access: yesMaterials Sciences and Applications, 2015
Super duplex stainless steel (SDSS) is considered as a composite formed from a microstructure of an approximately equal mixture of two primary constituents (γ-austenite and α-ferrite phases) and the secondary precipitates (sigma, chi, alpha-prime, etc.). While the formation of these phases affects the properties of SDSS, however there are no rules that
Fady M. Elsabbagh   +3 more
openaire   +2 more sources

Transferable Hot‐Deformation Flow‐Curve Modeling Across Steels Through Transfer Learning

open access: yesMaterials Genome Engineering Advances, EarlyView.
We propose a transferable sequence model that moves steel hot‐deformation ML beyond the “one‐case, one‐model” paradigm. Pretrained across compositions/windows and personalized with four extreme‐condition curves, it improves accuracy and robustness in 10‐fold evaluation.
Changqing Shu   +9 more
wiley   +1 more source

Development of Super-purifying Ferritic Stainless Steels by 150 t VD/VOD Process

open access: yesTeshugang, 2011
Four grades of super-purifying ferritic stainless steel 409LI, 439M , 460LI and 470LI without containing Ni and Mo are pilot-produced by using a new 150 t VD/VOD unit with EAF-AOD-VOD three steps process at AST, ThyssenKrupp.
何立波, 黄宝, 张志勤
doaj  

Study on Homogenization Process of Super Austenitic Stainless Steel 254SMo

open access: yesTeshugang, 2023
The tested super austenitic stainless steel 254SMo(/%:0.011C,0.30Si,0.46Mn,20.25Cr,17.75Ni,6.13Mo,0.64Cu,0.212N) is melted by 20 t electric arc furnace + AOD +LF refining,the as-cast microstructure of 254SMo steel has been studied. It is found that there
史咏鑫   +4 more
doaj  

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

open access: yessteel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt   +2 more
wiley   +1 more source

Tribocorrosion Behavior of Medium-Entropy Super Austenitic Stainless Steel in Acidic Environments

open access: yesLubricants
Although extensive studies have examined the tribocorrosion behavior of stainless steels, the performance of medium-entropy austenitic super stainless steels (MEASS) under severe combined corrosion and mechanical wear conditions has not been fully ...
Chia-Chi Liu   +7 more
doaj   +1 more source

Effect of Solution Temperature on Microstructure and Properties of Super Austenitic Stainless Steel 022Cr24Ni17Mo5Mn6NbN

open access: yesTeshugang, 2022
The tested super austenitic stainless steel 022Cr24Ni17Mo5Mn6NbN (/% : 0. 028C, 0. 33Si, 6. 21Mn, 24. 93Cr, 17. 03Ni, 4. 24Mo, 0. 45N) is melted by 1 t non vacuum induction furnace and electroslag remelting process, and rolled into Φ 40 mm bar after Φ360
史咏鑫   +5 more
doaj  

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

open access: yessteel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin   +4 more
wiley   +1 more source

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