Results 21 to 30 of about 399,302 (324)
Asymmetric indentation: problem and solution
Vickers and Knoop testers are the most common tools used to measure the hardness of materials. However, a very small tilt in the sample surface even in the order of a fraction of a degree produces a noticeable asymmetry, which affects the accuracy of the
M. El-Sayed Ali +3 more
doaj +1 more source
High-performance and low-cost composites are engineers’ dream for technological applications. To fulfill the material for an engineering application, it is important to understand the mechanical properties of the material.
M. Rekaby +3 more
semanticscholar +1 more source
Xiaoshuang Rao
exaly +2 more sources
In this study, Al-B4C composites were produced with various particle sizes (B4C: 3.5 and 20 µm) and reinforcement rates (B4C%: 1, 3, 6, 9, 12, 15, 30%) by the powder metallurgy method.
Mahmut Can Şenel, Mevlüt Gürbüz
doaj +1 more source
Conventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests [PDF]
We evaluate Vickers hardness and true instrumented indentation test (IIT) hardness of 24 metals over a wide range of mechanical properties using just IIT parameters by taking into account the real contact morphology beneath the Vickers indenter ...
Bulychev +6 more
core +1 more source
Depth-sensing indentation tests in studying plastic instabilities [PDF]
This review surveys the phenomenon of plastic instabilities occurring in depth-sensing indentation measurements. Investigations presented focus on the characterization of Portevin-Le Chatelier type instabilities observed in different metal alloys during ...
Bobji +14 more
core +1 more source
Improvement design of existing threshing machine at Kilang Sawit Risda, Ulu Keratong [PDF]
Palm oil is very important in the agricultural and economic sectors in Malaysia. It’s origin is in the tropical rain forest region of West Africa, which the main belt runs through the southern latitudes of Cameron, Cote D’ ivoire, Ghana, Liberia, Nigeria,
Chen, Chit Wee +8 more
core +2 more sources
Influence of different polishing materials in the material removal of steel samples [PDF]
The quality of injection moulded polymer optic parts depends on the surface finish of the respective mould. In order to improve and control the surface finish of the mould it is important to be able to keep the material removal constant during the ...
Almeida, Rui +3 more
core +2 more sources
Result analysis of EURAMET Vickers comparison between INRiM and UME (EURAMET.M.H-K1.b.c)
A bilateral key comparison between INRiM (National Metrology Institute of Italy) and TUBITAK UME (National Metrology Institute of Turkey) had been decided to be organized in the field of Hardness Metrology to determine the consistency of the national ...
C. Kuzu, A. Germak, C. Origlia, E. Pelit
doaj +1 more source
On the Application of Vickers Micro Hardness Testing to Isotactic Polypropylene
Hardness is a useful measure of a material’s resistance to permanent indentation; but for viscoelastic polymers, hardness data are highly dependent on the test type and the parameter set chosen.
Hao Wu +7 more
semanticscholar +1 more source

