The influence of heterogenous porosity on silicon nitride/steel wear in lubricated rolling contact [PDF]
, 2000 Heterogeneous porosity is detected on the surface and subsurface of hot isostatically pressed (HIPed) silicon nitride spherical rolling elements. The extent of the localised porosity accounts for an area of 6% of the rolling element surface and 4% of the
Hadfield, M, Kang, J
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Conventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests [PDF]
, 2010 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
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A Potential Function Derivation of a Constitutive Equation for Inelastic Material Response [PDF]
, 1983 Physical and thermodynamic concepts are used to develop a potential function for application to high temperature polycrystalline material response. Inherent in the formulation is a differential relationship between the potential function and constitutive
Elfoutouh, N. A., Stouffer, D. C.
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Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]
, 2010 Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Chen, Zhen Guo, +7 more
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THE METHOD OF ACCELERATED TESTS FOR HARDNESS MATERIAL
Nauka ta progres transportu, 2011 The methods of endurance testing of aluminum alloys at high frequencies from 0.3 to 44.0 kHz are considered.
S. E. Bielskyi +2 more
doaj
Post-fire hardness and impact resistance tests of high-strength grade 8.8 steel bolts [PDF]
Archives of Civil EngineeringThe article presents results of hardness and impact resistance tests of grade M20-8.8 bolts, previously subjected to simulated fire conditions. The tests were aimed at assessing the effect of temperature, fire exposure time, and cooling method on the ...
Paweł A. Król
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'Fire hardening' spear wood does slightly harden it, but makes it much weaker and more brittle [PDF]
, 2016 It is usually assumed that 'fire hardening' the tips of spears, as practised by hunter-gatherers and early Homo spp., makes them harder and better suited for hunting.
Chan, Tak Lok, Ennos, Antony Roland
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Investigating the Wear Behaviour of Induction Hardened 100Cr6 Steel
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018 100Cr6steel surface was induction hardened in order to be used in a bushingmanufacturing. After examininig themicrostructure and hardness variations of the hardened surfaces, ball-on disctype wear tests were carried out.
Gülcan Toktaş +2 more
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, 2016 For macrohardness mapping of large components (forgings, castings), a CNC system was developed to position and record indentation sites on a Vickers-Armstrong manual hardness tester. This document covers operation, design and manufacturing notes as well as manuals for the controller, hardness tester as well as best programming practice.
openaire +1 more source
Thermal influence of welding process on strength overmatching of thin dissimilar sheets joints [PDF]
, 2010 The investigation addresses the overall performance of black and white joints (BWJ) of low carbon steel and stainless steel thin sheets achieved by laser hybrid welding.
Caballero Molano, Luis +4 more
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