Results 101 to 110 of about 36,063 (292)

Exploring the Tribological Properties of 3D Printed Polymer Composites: An Experimental Study

open access: yesPolymer Composites, EarlyView.
Tribological pin‐on‐disc testing of FDM‐manufactured pins. Pins made from PLA, TPU, bronze‐filled PLA (BRO), and their combinations were tested against a SAE 1020 steel disc to evaluate friction, wear, and surface morphology. ABSTRACT In recent years, additive manufacturing, especially 3D printing, has been gaining more space in the production of parts
G. Lasch   +10 more
wiley   +1 more source

Mechanical Behavior Analysis of a Friction Stir Welding (FSW) for Welded Joint Applied to Polymer Materials

open access: yesFracture and Structural Integrity, 2018
Welding is a technique of fusion joining the material involving a process of inter-molecular diffusion adhesion. Polymer welding is an assembly method among several known assembly techniques such as gluing. This welding process applies to thermoplastics;
Hachellaf kaddour   +3 more
doaj  

First‐Principles Investigation of Zn Doping Impacts on the Structural, Electronic, Mechanical, Thermodynamic, and Optical Properties of α‐NiS for Photocatalytic Activity

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
This study employs first‐principles density functional theory + U calculations to explore the effects of Zn doping on the structural, electronic, and photocatalytic properties of NiS. The results reveal that Zn incorporation narrows the band gap, enhances visible‐light absorption, and promotes efficient charge separation, highlighting Zn–NiS as a ...
Fikadu Takele Geldasa   +1 more
wiley   +1 more source

Yttrium Addition Co‐Enhances the Plasticity and Corrosion Resistance of TiB2‐Refined Al‐Mg‐Zn Alloys

open access: yesRare Metals, EarlyView.
ABSTRACT To address the degradation of corrosion resistance induced by Al‐5Ti‐B grain refiner during the strengthening of Al‐Mg‐Zn alloys, this study innovatively employed a rare earth element yttrium (Y) alloying strategy to achieve synergistic enhancement of mechanical strength and corrosion resistance.
Wen‐Tao Qin   +9 more
wiley   +1 more source

Breaking Hardness–Toughness Trade‐Off in Novel (V, Nb)C Carbides via Nanoscale Phase Separation and Local‐Chemical‐Order Dislocation Network

open access: yesRare Metals, EarlyView.
ABSTRACT Transition metal carbides demonstrate exceptional mechanical properties but confront a critical hardness–toughness trade‐off. Spinodal decomposition‐mediated phase separation is an effective approach to enhance mechanical properties in carbide ceramics through high‐temperature treatment.
Zhi‐Xuan Zhang   +6 more
wiley   +1 more source

Effect of thermal cycling on the mechanical properties of conventional, milled, and 3D-printed base resin materials: a comparative in vitro study [PDF]

open access: yesPeerJ
Purpose The purpose of this study is to evaluate the impact of thermal cycling on the mechanical properties of conventional, milled, and 3D-printed denture base materials.
Shuang Xiao, Ruo-Jin Zhang, Fa-Bing Tan
doaj   +2 more sources

Evaluation of mechanical characteristics of steel bars by non-destructive Vickers micro-hardness tests

open access: diamond, 2023
Silvia Caprili   +7 more
openalex   +1 more source

Mechanical Behavior and Failure Analysis of Prosthetic Retaining Screws after Long‐Term Use In Vivo. Part 2: Metallurgical and Microhardness Analysis [PDF]

open access: yes, 2007
Purpose: This study involved testing and analyzing multiple retrieved prosthetic retaining screws after long‐term use in vivo to: (1) detect manufacturing defects that could affect in‐service behavior; (2) characterize the microstructure and alloy ...
Al Jabbari, Youssef S.   +4 more
core   +1 more source

Dynamic Phase Transformation Mechanisms in Ti48Al5Nb2Cr0.6Re0.1C Alloy With Heterogeneous Layered Microstructure

open access: yesRare Metals, EarlyView.
ABSTRACT Introducing solid‐state phase transformations into the design of heterogeneous structures is considered an effective strategy for simultaneously optimizing both microstructure and mechanical properties. This study investigates the thermodynamic and kinetic mechanisms of the γ → α transformation in Ti48Al5Nb2Cr0.6Re0.1C alloy under different ...
Ke‐Xuan Li   +6 more
wiley   +1 more source

The effect of vibratory stress on the welding microstructure and residual stress distribution [PDF]

open access: yes, 2001
Previous studies have suggested that weld microstructure may be modified by the presence of static stresses. In this investigation, vibratory stress was applied to mild steel specimens while they were being welded to observe its effect on the residual ...
Munsi, A.S.M.Y.   +2 more
core  

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