Results 61 to 70 of about 115,773 (314)

Tool Wear and Machinability Assessment of Ti-6Al-4V with Cemented Carbide Tools During Large Overhang Milling with Varying Shank Lengths

open access: yesJournal of Manufacturing and Materials Processing
Large overhang milling cutters face challenges, including poor cutting stability and surface quality when machining deep-cavity parts in aerospace and other industries.
Aisheng Jiang   +7 more
doaj   +1 more source

Effect of N/C Ratio on Precipitation Behavior of (Cr,Fe)23C6 Carbide in Novel Cast Austenitic Heat-Resistant Steels during Directional Solidification

open access: yesMetals, 2018
The precipitation of (Cr,Fe)23C6 carbide could significantly degrade the mechanical properties of Nb-bearing cast austenitic heat-resistant steels, designed for exhaust components of automotive gasoline engines at 1000 °C.
Yinhui Zhang, Jian Yang
doaj   +1 more source

Brittle–ductile transition during diamond turning of single crystal silicon carbide [PDF]

open access: yes, 2013
In this experimental study, diamond turning of single crystal 6H-SiC was performed at a cutting speed of 1 m/s on an ultra-precision diamond turning machine (Moore Nanotech 350 UPL) to elucidate the microscopic origin of ductile-regime machining ...
Reuben, Robert L   +5 more
core   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

Experimental research on multi-structural parameter optimization of rhombic tooth endmill based on DOE in CFRP milling

open access: yesJournal of Materials Research and Technology
The rhombic tooth endmill, with its complex structure, is a frequently utilized cutting tool when milling carbon fiber reinforced polymer (CFRP). It offers the advantages of a small cutting force and good machining surface quality.
Xiaochen Zuo   +5 more
doaj   +1 more source

Production and Properties of High Entropy Carbide Based Hardmetals

open access: yesMetals, 2021
Dense, high-entropy carbide cobalt-bonded hardmetals with two different compositions, namely (Hf-Ta-Ti-Nb-V)C-19.2 vol% Co and (Ta-Ti-Nb-V-W)C-19.2 vol% Co, were successfully manufactured by gas pressure sintering (SinterHIP) at 1400 °C and 100 bar Ar ...
Johannes Pötschke   +4 more
doaj   +1 more source

Inelastic deformation and failure of tungsten carbide under ballistic-loading conditions [PDF]

open access: yes, 2010
High-speed photography has been used to investigate the dynamic behaviour of similar grades of WC-Co hardmetals during ballistic impacts with velocities in the range of 28-484 m/s.
Hazell, P.J.   +10 more
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Design and magnetic properties of gradient Fe(Si)/Fe structure soft magnetic composites

open access: yesJournal of Materials Research and Technology
Soft magnetic composites (SMCs) play a key role in the electric energy conversion, developing higher magnetization and lower loss SMCs is a strategy for modern power system and electric devices.
Xiaoyu Wang, Ziru Zheng, Kun Peng
doaj   +1 more source

Zirconium carbide, hafnium carbide and their ternary carbide nanoparticles by an in situ polymerization route

open access: yesRSC Advances, 2015
Anin situpolymerization route for the synthesis of zirconium carbide, hafnium carbide and their ternary carbide nanoparticles.
Chunlei Yan   +3 more
openaire   +1 more source

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