Results 71 to 80 of about 44,589 (331)

Effect of Copper Content on the Microstructure and Mechanical Properties of As‐Cast Refractory MoNbTi Multiprincipal Element Alloys

Advanced Engineering Materials, EarlyView.
Copper addition profoundly impacts MoNbTi multiprincipal element alloys. This study reveals copper's dual role, promoting microstructural refinement and strengthening intermetallics at optimal concentrations. An ideal copper content significantly boosts hardness and compressive strength, achieving superior mechanical performance.
Eder Lopes Ortiz, João Felipe Queiroz Rodrigues, Renato Baldan, Erik Poloni, Giovana da Silva Padilha, Wislei Riuper Osório, Ausdinir Danilo Bortolozo   +6 more
wiley   +1 more source

Indentation Hardness of Optical Glass

Journal of the Ceramic Association, Japan, 1972
This investigation was made to clarify how the indentation hardness of optical glass depends upon the effect of densification or plastic flow.To examine the effect densification has upon indentation hardness, optical glasses with Knoop indentations were heat-treated at temperatures below their transition temperature.
Tetsuro Izumitani, Isao Suzuki
openaire   +3 more sources

Additive Processing of Ti‐17 by Wire Arc Directed Energy Deposition: An Investigation of the Microstructure and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study focuses on processing the titanium alloy Ti‐17 using wire arc directed energy deposition (waDED), with an emphasis on the microstructure and mechanical properties. The waDED typical heat‐affected zone banding is characterized and related to the local mechanical properties.
Alexander Wenda, Thomas Klein, Florian Fahrnberger, Marcel Czipin, Karin Hartl, Clemens Simson, Martin Stockinger, Herbert Hutter   +7 more
wiley   +1 more source

Design of Multiphase Compositionally Complex Alloys for Enhanced Hardness at Elevated Temperatures and Machinability: Comparative Study with Inconel 718

Advanced Engineering Materials, EarlyView.
This study compares the mechanical properties of Inconel 718 with two newly developed compositionally complex alloys (CCAs). Inco‐like‐H alloy demonstrates significantly improved wear resistance, surface finish, and hardness, notably at high temperatures. This CCA requires no heat treatment and is well suited for additive manufacturing. Its performance
Laurent Peltier, Gaël Le Coz, Fodil Meraghni, Jérome Slowensky   +3 more
wiley   +1 more source

Micromechanical Characterization of 316L‐V4E Steel Transitions Produced by Electron Beam Powder Bed Fusion with Dual‐Hopper Alternating Layer Strategy

Advanced Engineering Materials, EarlyView.
This work applies High‐Speed Nanoindentation to study multi‐material transitions in powder bed fusion–electron beam melting components. The aim is to assess the mechanical gradients and interfacial behavior between American iron and steel institute 316L stainless steel and V4E tool steel in additively manufactured structures.
Laia Ortiz‐Membrado, William Sjöström, Francesc Barberà Flichi, Carlos Botero, Anton S. Tremsin, Antonio Mateo, Emilio Jiménez‐Piqué   +6 more
wiley   +1 more source

Do the Mechanical and Chemical Properties of Invisalign\u3csup\u3eTM\u3c/sup\u3e Appliances Change After Use? A Retrieval Analysis [PDF]

, 2016
Aim: To investigate the mechanical and chemical alterations of Invisalign appliances after intraoral aging. Materials and methods: Samples of Invisalign appliances (Align Technology, San Jose, California, USA) were collected following routine treatment ...
Bradley, T. Gerard, Eliades, George, Eliades, Theodore, Teske, Lauren, Zinelis, Spiros   +4 more
core   +1 more source

Factors Resulting in Micron Indentation Hardness Descending in Indentation Tests

Chinese Journal of Aeronautics, 2009
AbstractSome factors that affect the experimental results in nanoindentation tests such as the contact depth, contact area, load and loading duration are analyzed in this article. Combining with the results of finite element numerical simulation, we find that the creep property of the tested material is one of the important factors causing the micron ...
Li Min, Chen Weimin
openaire   +2 more sources

Micromechanical Insights into Sinter‐Based Additively Manufactured NiTi with Nb as a Sintering Aid

Advanced Engineering Materials, EarlyView.
This study investigates the microstructural and micromechanical behavior of NiTiNb made through filament‐based materials extrusion via chemically correlated nanoindentation. B19' remnants from the original powder lead to Nb gradients within NiTiNb grains due to the short sintering times required in liquid‐phase sintering.
Nerea Abando, Rebecca A. Gallivan, Nensi Toncich, Arnold Müller, Ralph Spolenak   +4 more
wiley   +1 more source

Fracture toughness of a zirconia engineering ceramic and the effects thereon of surface processing with fibre laser radiation [PDF]

, 2010
Vickers hardness indentation tests were employed to investigate the near-surface changes in the hardness of a fibre laser-treated and an as-received ZrO2 engineering ceramic.
Lawrence, Jonathan, Shukla, Pratik, Wu, H.   +2 more
core   +3 more sources

Deformation Behavior of Optical Ceramic Nanomultilayers: The Role of Aperiodicity

Advanced Engineering Materials, EarlyView.
Ceramic nanomultilayers demonstrate optical and mechanical behavior tunability through aperiodicity. Within the studied systems, optically optimized coatings exhibit an average ultraviolet, visible, and near‐infrared spectral transmittance above 90%.
Danielle E. White, Wenjuan Cheng, Koushik Jagadish, Edoardo Rossi, Yu‐Tsun Shao, Andrea M. Hodge   +5 more
wiley   +1 more source