Results 51 to 60 of about 8,846 (205)

The aggregate index of systemic inflammation is positively correlated with the risk of all-cause mortality in sepsis-associated acute kidney injury

Scientific Reports
Sepsis is a major health problem worldwide, and sepsis-associated acute kidney injury (SA-AKI) patients usually experience severe conditions, high mortality, and long length of stay. The predictive value of aggregate index of systemic inflammation (AISI)
Ruming Liu, Yanqi Fan, Bokang Jia, Panshi Li   +3 more
doaj   +1 more source

Electrochemical Hydrogenation-Induced Effects on the Room-Temperature Impact Toughness of Metastable and Stable Austenitic Stainless Steels

Metals
In the present work, four grades of austenitic stainless steels, namely AISI 321, AISI 316Ti, AISI 309, and AISI 310S, are investigated in terms of electrochemical hydrogenation effect on their room-temperature impact toughness.
Ladislav Falat, Lucia Čiripová, František Kromka, Róbert Džunda, Ivan Petrišinec   +4 more
doaj   +1 more source

Development and Design and Heat Treatment of Production, Storage and Mine Drilling Pipes in Petroleum and Geothermal Industries

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
In this study, sequential anddifferent temperature heat treatments were applied to steels after austenatingheat treatment applied to different AISI steel types.
İsmail Topcu, Batuhan Unal, Arda Devrım, Bilge Vanlı   +3 more
doaj   +1 more source

Fatigue Strength in Additive Toolmaking: A Study of Metal Binder Jetting and Electron Beam Melting for Processing Carbide‐Rich Cold‐Work Tool Steels

steel research international, EarlyView.
Focusing on the critical tap hole region of the blast furnace, this work examines binder characteristics, prepares tap hole clay with different formulations, and evaluates their physical properties. The findings confirm the advantages of composite binders and offer a new binder option for tap hole clay.
Frederik Tegeder, Lennart Mirko Scholl, Sandra Wieland, Christian Weck, Marie Franke‐Jurisch, Alexander Bezold, Thomas Weißgärber, Christoph Broeckmann   +7 more
wiley   +1 more source

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

steel 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, Anke Kaletsch, Christoph Broeckmann   +2 more
wiley   +1 more source

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

steel 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, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source

Toward the Application of Multiaxial Failure Criteria: Mean Stress Sensitivity of Carbide‐Rich, High‐Alloy PM‐HIP Tool Steels Under Axial and Torsional Cyclic Loading

steel research international, EarlyView.
This study quantifies axial and torsional long‐life fatigue (LLF) behavior of three carbide‐rich PM‐HIP tool steels, correlating LLF strength with intrinsic defect size and cleanliness, thereby extracting material‐specific mean stress sensitivities and Haigh diagrams.
Lennart Mirko Scholl, Frederik Tegeder, Tobias Hajeck, Alexander Bezold, Christoph Broeckmann   +4 more
wiley   +1 more source

Creep Performance of Stainless Steel 316 Brackets: Insights From Conventional and Advanced Modeling Approaches

steel research international, EarlyView.
Creep behavior of SS 316 brackets is examined through experiments, conventional creep laws, and advanced constitutive modeling. Long‐term deformation, stress redistribution, and life prediction are compared under service‐relevant loads. The study highlights the limits of classical models and demonstrates improved accuracy using advanced approaches for ...
Mohsin Sattar, Jan Hosek, Maaz Akhtar, Uliana Finaeva, Muhammad Muzamil, Naser A. Alsaleh, Asad A. Zaidi, Barun Haldar   +7 more
wiley   +1 more source

Influence of Surface Roughness and Temperature on Niobium Cathodic Cage Duplex Treatment Applied to VP20TS Steel

steel research international, EarlyView.
Niobium cathodic cage duplex treatment is applied to VP20TS steel to evaluate the influence of surface roughness and temperature on coating performance. Results show that higher temperatures promote thicker nitride layers and increased microhardness, while finer surface preparation enhances adhesion and wear resistance, revealing optimal conditions for
Alan Bruno Costa Cardoso, Ediones Maciel de Sousa, João Rodrigues de Barros Neto, Leandro Almeida Silva, Luciana Sgarbi Rossino, Rômulo Ribeiro Magalhães de Sousa, Marcos Guilherme Carvalho Braulio Barbosa   +6 more
wiley   +1 more source

The Influence of the Pretreatment of Tool Steel on the Running‐In Phase of Diamond‐Like Carbon Coatings

steel research international, EarlyView.
The influence of tool steel pretreatment on the running‐in behavior of TiNb‐diamond‐like carbon (DLC) coatings is investigated. Ion etching promotes carbide protrusion and increases coating roughness, while post‐deposition polishing reduces surface asperities.
Matěj Buřil, Ladislav Cvrček, Jan Walter, Miha Čekada, Marie Kudrnová, František Lukáč   +5 more
wiley   +1 more source