Results 21 to 30 of about 9,866 (290)

Periodic topological lattice with different indentation hardness on opposite surfaces

Materials & Design, 2019
Different surface properties are needed simultaneously in many applications, especially under an indentation load or impact load. This study proposes one class of novel periodic topological mechanical metamaterials, 2D topological honeycomb structure and
Xiao-Fei Guo, Li Ma
doaj   +1 more source

Mechanical properties of self-ion irradiated pure tungsten using nano-indentation test and micro-tensile test

Nuclear Materials and Energy, 2022
The existing nano-indentation method and developmental micro-tensile testing method are more attractive in accurately defining the irradiation effect on the mechanical behavior and adopted in this study to identify the detailed irradiation behavior of ...
J.H. Yu, H. Kurotaki, M. Ando, T. Nozawa
doaj   +1 more source

Indentation Size Effect on the Hardness of Silicon Carbide Ceramics [PDF]

Kemija u Industriji, 2010
The Vickers hardness of CVD SiC ceramics is determined as a function of the indentation load. Vickers hardness pyramid-shaped sharp diamond indenter with angle between opposite faces at an angle of 136° was used to apply five indentation loads of 4.91; 9.
.Grilec, K:, Rede, V., Ćurković, L.
doaj  

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Investigation of the mechanism of the indentation size effect for titanium

Mechanical Engineering Journal, 2019
In this study, we investigated the mechanism of the indentation size effect for Ti, whose crystal structure is hexagonal close-packed. Indentation tests were performed for two types of single-crystal Ti with different crystal orientations: (0001) and ...
Shota HASUNUMA, Hirohisa MIYAZAKI, Takeshi OGAWA   +2 more
doaj   +1 more source

The Effect of Nitrogen Flow Rate on the Loadbearing Capacity from Nano- to Macro-Hardness of Austenitic Stainless Steels Magnetron Sputtering-Coated with Stainless Steel Films [PDF]

Materials Research, 2020
UNS S31603 stainless steel (SS) substrates were covered by reactive magnetron-sputtering with protective SS coatings of the same steel specification. A mechanical characterization study (through nano-, micro- and macro-hardness tests) of samples obtained
Carlos M. Garzón, Giovanny A. Vergara, Abel A. C. Recco   +2 more
doaj   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola P. I. Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source

Exploring Microstructure–Physical Property–Corrosion Response Relationship in Intermetallic Compounds of Al‐Cu Bimetallic Interfaces

Advanced Engineering Materials, EarlyView.
Al‐Cu intermetallic compounds (IMCs) have a significant influence on the properties of Al‐Cu bimetallic interfaces formed in compound casting. This article provides a deeper understanding of microstructure, crystallography, thermal properties, hardness, and corrosion response of Al‐Cu IMCs with the goal of facilitating the optimization of the ...
Alireza Nazarahari, Tatiana Blank, Christian Hinte, Huseyin Can Ozdemir, Khemais Barienti, Christian Klose, Dermican Canadinc, Hans Jürgen Maier   +7 more
wiley   +1 more source

Temperature dependent mechanical property of PZT film: an investigation by nanoindentation.

PLoS ONE, 2015
Load-depth curves of an unpoled Lead Zirconate Titanate (PZT) film composite as a function of temperature were measured by nanoindentation technique. Its reduce modulus and hardness were calculated by the typical Oliver-Pharr method.
Yingwei Li, Shangming Feng, Wenping Wu, Faxin Li   +3 more
doaj   +1 more source

Investigation of the indentation size effect based on measurement of the geometrically necessary dislocation density by electron backscatter diffraction

Mechanical Engineering Journal, 2018
In this study, we investigated the mechanism of the indentation size effect based on measurement of the geometrically necessary (GN) dislocation density. The GN dislocation density was measured around impressions by electron backscatter diffraction (EBSD)
Shota HASUNUMA, Hirohisa MIYAZAKI, Kensuke SHIMADA, Takeshi OGAWA   +3 more
doaj   +1 more source