Results 131 to 140 of about 55,060 (259)

Phase Transformation Behavior of Continuously Cooled Fe–C–V–(Mo) Alloys

steel research international, EarlyView.
Additions of vanadium and molybdenum microalloying are shown to reshape phase transformations in clean low‐carbon steels. By tracking microstructural shifts during continuous cooling, the work uncovers the correlation between transformation kinetics, ferrite morphology, and hardness.
Anastasiya Tselikova, Jannik Zuraszek, Ulrich Krupp, Rolf Schmidt, Hardy Mohrbacher, Alexander Gramlich   +5 more
wiley   +1 more source

Comparison of Vickers hardness measurement in high hardness range [PDF]

, 2015
The paper describes comparison of Vickers hardness measurement in the high hardness range. The measurements were performed on the block made of WC-Co hardmetal on the reference Vickers hardness machine. The software package for the indentation analysis was developed.
Katić, Marko, Alar, Željko, Aleksandrov Fabijanić, Tamara   +2 more
openaire  

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

steel 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, Jose A. Jimenez, Carlos Garcia‐Mateo, Radhakanta Rana   +3 more
wiley   +1 more source

Fabrication and characterization of Si3N4 ceramics without additives by high pressure hot pressing [PDF]

High pressure hot-pressing of Si3N4 without additives was performed using various kinds of Si3N4 powder as starting materials, and the relation between densification and alpha-beta phase transformation was studied.
Koizumi, M., Shimada, M., Tanaka, A., Yamada, T.   +3 more
core   +1 more source

Surface Micro‐Discharge Plasma for Multiple Teeth Bleaching: Efficacy, Mechanism and Safety

High Voltage, EarlyView.
ABSTRACT Hydrogen peroxide (H2O2) is the commonly‐used bleaching chemical in clinical practice, but its excessive concentrations can cause tooth damage. Atmospheric pressure cold plasma is considered a promising new technique for tooth bleaching. Surface micro‐discharge (SMD) devices can generate large‐scale plasma, which holds potential for treating ...
Ruike Chen, Haoran Feng, Yinglong Li, Hong Pan, Hangbo Xu, Zhen Jiao, Dongjie Cui, Ruonan Ma   +7 more
wiley   +1 more source

Vickers indentation hardness of stoichiometric and reduced single crystal TiO2 (rutile) from 25 to 800 C [PDF]

The indentation microhardness of stoichiometric and reduced single crystal rutile (TiO2) from 25 to 800 C is presented in this paper. The results serve two main purposes. One is to assess the effect of rutile's stoichiometry on its hardness. The other is
Deadmore, Daniel L., Dellacorte, Christopher   +1 more
core   +1 more source

Exploring the Agency of Algorithmic Technology in Talent Management Decision‐Making: An Actor‐Network Theory Perspective

Human Resource Management Journal, EarlyView.
ABSTRACT Guided by the Actor‐Network Theory (ANT) perspective, this study explores user experiences with the perceived agency of algorithmic technology in the context of talent management (TM) decisions. Through a qualitative analysis of 11 client companies utilizing algorithmic TM decision‐making technology provided by an HR tech service firm, we ...
Violetta Khoreva, Vlad Vaiman, Sunghoon Kim   +2 more
wiley   +1 more source

Laboratory Evaluation of the Physicochemical Properties of Novel Pre‐Mixed Putty‐Type Bioceramic Materials

Australian Endodontic Journal, EarlyView.
ABSTRACT This study aimed to compare the physicochemical properties of EndoSequence Root Repair Material (ERRM) Fast and CeraPutty with ProRoot MTA and Biodentine, focusing on setting time, radiopacity, microhardness, and pH. Setting time was measured using a Gilmore‐type indenter applied every 5 min until no indentation was observed (n = 15 per group).
So‐Mang Lee, Minju Song, Sang Won Kwak, Hyeon‐Cheol Kim   +3 more
wiley   +1 more source

Vickers Hardness and Shrinkage Stress Evaluation of Low and High Viscosity Bulk-Fill Resin Composite. [PDF]

Polymers (Basel), 2020
Comba A, Scotti N, Maravić T, Mazzoni A, Carossa M, Breschi L, Cadenaro M.   +6 more
europepmc   +1 more source

Dose‐Dependent Effects of Simulated Clinical Radiotherapy on the Structure and Properties of Root Dentine

Australian Endodontic Journal, EarlyView.
ABSTRACT Head and neck radiotherapy (HNRT) can expose teeth to moderate radiation doses, yet the effects on root dentine under clinically relevant conditions remain unclear. This in vitro study compared dentine subjected to 0, 30, or 50 Gy IMRT. Palatal roots from 35 maxillary molars were allocated to non‐irradiated, 30 Gy (oropharyngeal simulation ...
Anna Victória Costa Serique, Lívia Ribeiro, Julia Menezes Savaris, Luíz Carlos de Lima Dias‐Júnior, Eduardo Antunes Bortoluzzi, Mariana Comparotto Minamisako, Paulo Marcelo Rodrigues, Nayara Cardoso Cábia, Ricardo Machado, Bruno Alexandre Pacheco de Castro Henriques, Cleonice da Silveira Teixeira, Lucas da Fonseca Roberti Garcia   +11 more
wiley   +1 more source