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Online since: October 2015
Authors: Roman Fekete, Marian Peciar, Peter Peciar
This means that the normal stress is minimal and the shear stress, together with the shear rate, should be the prime factors affecting the skeleton compression and thus the liquid motion.
In the case of a paste, it is necessary to separate the three factors which are in the interaction.
The rheological properties of a paste are mostly modified by the addition of suitable additives.
These factors cause the pressing of the skeleton created by the grains of powder, a decreasing of the volume of the voids and the migration of the liquid, whose meaning for the rheological properties of the paste is essential.
The density and strength of the agglomerates have the suitable properties.
Online since: July 2015
Authors: Liang Zhen, Hong Wei Yan, Jian Tang Jiang
Thermal-mechanical treatment has been proved to be a effective way to improve the overall property of aluminum alloy[1].
In current strengthening theory, mathematical expressions of different strengthening method are given respectively, and the material’s strength is given as simple superposition of different strengthening factors’ contributions [2, 3].
Results and Discussion Mechanical Properties.
Mechanical property is the most important technical specification in structural material evaluation.
Fig. 2 Evolution of mechanical properties for cold rolled samples in the process of aging at different temperature, (a) 120°C; (b) 100°C Characterization of Precipitation.
Online since: January 2012
Authors: Nak Soo Kim, Moon Kyu Lee, Hong Lae Kim, Seok Moo Hong, Sun Chul Choi
Simulation of Ceramic Powder Injection Moulding Based on The Behavior of Flow Stress Depended on The Thermal Viscosity Flowage Property and The Volume Fraction Moon Kyu Lee1, a, Hong-lae Kim2,b, Seokmoo Hong3,c , Sunchul Choi4,d and Naksoo Kim5,e 1,2Department of Mechanical Engineering, Sogang University, #1 Shinsu-dong, Mapo-gu, Seoul, Korea 3,4 Mold & Die Technology Center, Manufacturing Tech.
The prediction of flow pattern and volume fraction distribution in ceramic powder injection moulding (CIM) is very important because their characteristics affect the mechanical stiffness and the sintering shrinkage.
Introduction The prediction of flow pattern and volume fraction distribution in ceramic powder injection moulding (CIM) is very important because their characteristics affect the mechanical stiffness and the sintering shrinkage.
The volume fraction is influenced by the gradient of pressure during CIM and it affects the viscosity.
Methods The governing equation is composed of the flow stress factor by strain and strain rate in Eq. 1, and the viscosity factor by temperature and volume fraction in Eq. 2.
Online since: March 2007
Authors: Jung Hwa Hong, Young Hwan Park, Sang Ok Ko
In general, SGP is affected by a viscosity of bone fluid, flow rate, interstitial pressure distributions.
Furthermore, it could be one of important factor inducing bone remodeling processes.
The interstitial fluid pressure generation characteristics in bone are functions of its poroelastic properties and boundary conditions.
The mostly important factors Figure 6.
Becker : Generation of electric potentials by bone in response to mechanical stress, Science.
Online since: July 2012
Authors: Shu Zhen Wu, Fang Xu
Introduction The copper has superior strength, thermal conductivity, mechanical properties and corrosion resistance properties, it has a wide range of applications in various fields.
Research Contents Test1 Tab 1 The factors and levels of the orthogonal test 1 factor level 1 2 BTA(A) 2g/l 3g/l sulfosalicylic acid (B) 2g/l 3g/l twelve alkyl sodium sulfate (C) 0.04g/l 0.05g/l RE-salt (D) --- 2g/l By the contrast test filter out a better inhibitor: the BTA: 3g / l + sulfosalicylic acid 3gL + twelve alkyl sodium sulfate 0.05g / L.
Use of L16(215) orthogonal test to study the RE salt has a distinct role in the experimental results, and to consider the interaction between RE and the BTA and sulfosalicylic acid factors.The orthogonal test 1 see Tab1.
Therefore, we can determine the performance influence of RE salt to passive film on copper is great, and showed good synergistic effect with other factors.
Test 2 This test is single factor experiment of six levels, the RE salt as a single factor to consider.
Online since: June 2025
Authors: Jana Escherová, Milan Jus, Miroslav Polášek, Marcel Kohutiar, Josef Maryáš, Jaroslav Pokluda, Pavol Mikuš
Various steels with suitable properties can be used as barrel steel.
The main goal of the experiments was to analyze the friction properties and wear of steel for the production of stressed 34CrNiMo6 barrels in contact with a G40 bearing ball with a diameter of 6.35 mm.
The decrease in gun barrel life is mainly caused by a combination of heat, chemical factors, and mechanical factors.
The wear of small-caliber barrels is one of the key factors affecting barrel life.
Dubec, The Influence of the Geometry of Movement during the Friction Process on the Change in the Tribological Properties of 30CrNiMo8 Steel in Contact with a G40 Steel Ball, Materials 17 (2023) 127.
Online since: August 2004
Authors: Sung Jin Song, Young H. Kim, Hyang Beom Lee, Myung Ho Song, Jong Seok Heo
The interpretation of ECT signals, however, is known as a truly difficult task due to the influence of various factors including the variation in geometry and material properties of steam generator tubes.
They are also affected by the non-flaw factors that include localized variation in electromagnetic properties of the SG tubes as well as the geometric variation such as dent, bulge and diameter change.
Existence of the external objects such as support plate and sludge with magnetite is one of the important factors affecting ECT signals.
(a) Diameter changes and (b) variances in electromagnetic properties of the tube.
Two factors in diameter changes were considered: amount of diameter change ( r∆ ) and the slope of diameter change ( eLr /∆ ).
Online since: October 2022
Authors: Wei Gao, Dong Bai Sun, Kang Kai Hu, Shi Cheng Wang, Hong Ying Yu
This study proved that the crystal phase composition and grain size during the solidification process after laser-remelting were a key factor affecting the service performance of Ti-6Al-4V alloy.
The metallographic structure was one of a key factors affecting the service performance of Ti-6Al-4V alloy.
Huang, Microstructure and properties of pure titanium coating on Ti-6Al-4V alloy by laser cladding, Surf.
Xiao, Microstructure and corrosion properties of Ti-6Al-4V alloy by ultrasonic shot peening, Int.
Tsuji, Mechanical properties of fully martensite microstructure in Ti-6Al-4V alloy transformed from refined beta grains obtained by rapid heat treatment (RHT), Scripta Mater. 138 (2017) 66-70
Online since: November 2005
Authors: Qing Yuan Wang, Zhu Feng Yue, Ai Qin Wang, T. Li, Z.X. Wen
Experimental Study of the High Temperature Mechanical Behaviors of TLP Bonding of Two Ni-base Single Crystals T.
The mechanical behaviors of TLP single crystal is compared to the behaviors of base material.
Thus, TLP bonding produces a good joint having the same structure of the base metal and approximate property to that of the base metal.
In this paper, the study of TLP is focused on the high temperature mechanical property, the failure mode, and fracture mechanism of the welding joint.
Factors such as the composition of the interlayer alloy, diffusion time, isothermal solidification time can all affect the formation of the inter-metallic phases and induce inhomogeneity into the microstructure.
Online since: January 2021
Authors: Vincent Ji, Thierry Baudin, François Brisset, Anne Laure Helbert, Michel Rege, Fazati Bourahima, Frédéric Ott, Arnaud Courteaux
The Cu-Ni-Al and cast-iron substrates are used for their thermal properties in glass mold industry.
The role of the Ni based alloy is to protect the mold without affecting its thermal properties (Heat Affected Zone (HAZ)).
The substrate materials are chosen for their good thermal properties [2].
Zhang, Additive manufacturing of metallic components – Process, structure and properties, Prog.
Dai, Analysis on the physical mechanism of laser cladding crack and its influence factors, Optik (Stuttg). 127 (2016) 200–202. doi:10.1016/j.ijleo.2015.10.043
Showing 9791 to 9800 of 25935 items