Results 91 to 100 of about 7,618 (233)

Low‐Voltage Pulsed GMA‐AM Application for Controlling Heat Input and Improving Deposition Quality of 309LSi Multilayered Structures

steel research international, EarlyView.
This manuscript presents a study on the effects of parameter control of low‐voltage pulsed‐GMA‐AM application for producing 309LSi multilayered build‐ups, which can simultaneously lead to reduced heat input up to 32.1%, enable pulsed‐spray transfer, provide stable depositing conditions and preserve dimensional consistency, favoring fabrication of a 114‐
Petrônio L. C. C. C. Fernandes, Guilherme G. S. Figueiredo, Ivan B. M. Picchi, Edwar A. T. López, Tiago F. A. Santos   +4 more
wiley   +1 more source

Effect of Different Surface Treatments on Resistance to Abrasive Wear of AISI 4140 Steel

steel research international, EarlyView.
This study investigates how different surface treatments affect resistance to abrasive wear of AISI 4140 Steel. The wear rate was significantly higher in samples subjected to conventional treatments than in samples coated using the HVOF process, demonstrating the superior efficiency of coatings applied by thermal spraying in mitigating abrasive wear ...
Everton Freitas de Oliveira, Tomasz Trzepieciński, Valmir Dias Luiz, Jorge Luis Coleti   +3 more
wiley   +1 more source

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

Information
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, Ruiyang Wu, Zhicong Zhang, Yong Li, Qiqi Chang, Weihui Liu, Xiaodong Huang   +6 more
doaj   +1 more source

Thermodynamics and Kinetics of Ammonia‐Based Reduction of Natural Hematite

steel research international, EarlyView.
Ammonia is investigated as a carbon‐free hydrogen carrier for reducing natural hematite into metallic iron. Higher temperature and smaller particle size promote faster reduction, while ammonia dissociation generates hydrogen that indirectly drives the reduction reaction. At 850 °C, high reduction degrees and porous metallic iron structures are achieved,
Medard Turyasingura, Basit Ali, Michael Lubwama, Peter Wilberforce Olupot, Marcel A. J. Somers   +4 more
wiley   +1 more source

Microstructure and Non-Metallic Inclusion Modification in Steel Deoxidized by Complex Fe-Si-Mn-Al Alloy

Eng
This study evaluates the effects of semi-industrial and synthetic Fe–Si–Mn–Al deoxidizers on the microstructure, non-metallic inclusions, and hardness of St3 steel.
Assylbek Nurumgaliyev, Talgat Zhuniskaliyev, Oleg Zayakin, Dmitrii Renev, Irina Volokitina, Nurbek Aitkenov, Gulmira Sultamurat, Yesmurat Myngzhassar, Tair Tushiyev, Assylbek Abdirashit   +9 more
doaj   +1 more source

Development of a wide field of view X‐ray imaging detector and its application in X‐ray multi‐scale imaging

Journal of Synchrotron Radiation, EarlyView.
A wide field of view X‐ray imaging detector has been developed, and applied to wide‐range X‐ray multi‐scale imaging to visualize a relatively large object from its entire structure to the cellular level.A wide field of view X‐ray imaging detector with an effective field of view of more than 90 mm has been developed.
Masato Hoshino, Kentaro Uesugi
wiley   +1 more source

Study on ductile fracture of electroslag welding and its heat affected zones

Hanjie xuebao
Electroslag welding involves high heat input, which may cause material hardening in the weld and heat-affected zone. At the same time, the electroslag weld is in an inaccessible state, making the welding quality difficult to control.
Yue YIN, Xiaoqi XU, Keyu PU
doaj   +1 more source

Sodium Diclofenac‐Loaded Drug Delivery Microspheres: Impact on Calcium Hydroxide Paste Properties and Biological Response

Australian Endodontic Journal, EarlyView.
ABSTRACT This study evaluated whether the incorporation of sodium diclofenac‐loaded microspheres into a calcium hydroxide paste enhances antibiofilm activity while maintaining physicochemical properties and biocompatibility. Calcium hydroxide paste, calcium hydroxide combined with sodium diclofenac, and calcium hydroxide containing sodium diclofenac ...
João Vitor Oliveira de Amorim, Murilo Priori Alcalde, Leonardo Cabau, Rodrigo Ricci Vivan, Paulo Henrique Weckwerth, Marco Antonio Hungaro Duarte, Guilherme Ferreira da Silva   +6 more
wiley   +1 more source

Exploring Use‐Wear Texture Quantification Through Confocal Microscopy on Tools Made From Volcanic Rocks (Basalt and Phonolite)

Archaeometry, EarlyView.
ABSTRACT Functional analysis is essential for reconstructing lithic tool use. Recent approaches combining confocal microscopy and surface texture analysis provide quantitative alternatives to traditional visual use‐wear analysis, although their application to coarse‐grained, heterogeneous rocks remains challenging because of their complex surface ...
Idaira Brito‐Abrante, Amelia Rodríguez‐Rodríguez, Juan José Ibáñez   +2 more
wiley   +1 more source

Fatigue Behavior of Post‐Processed Additively Manufactured 316L Stainless Steel: Experiments and Fatigue Damage Modeling

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study experimentally and numerically investigates fatigue damage in additively manufactured 316L stainless steel produced by selective laser melting using the powder bed fusion–laser beam process. More than 100 specimens were tested under tensile and strain‐controlled fatigue loading to evaluate the effects of surface condition, hot ...
M. Subasic, J. Shu, E. Keller, J. Faleskog, R. Mansour, P. Krakhmalev, M. Åsberg, J. Shipley, J. Gårdstam, R. Magnusson, P. Waernqvist, B. Forssgren, P. Efsing   +12 more
wiley   +1 more source