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Reliability evaluation of hardness test methods of hardfacing coatings with hypoeutectic and hypereutectic microstructuresNilay ??mez1,Can ?ivi2,Hülya Durmu?11. Department of Metallurgical... carbide/boride phases dispersed in a relatively soft steel matrix. For the hardness measurements of hardfacing coatings, depending on the microstructure, both the hardness test method and the applied......
High-temperature Creep Behavior Characterization of Asphalt Mixture based on Micromechanical Modeling and Virtual Test马涛1,ZHANG Deyu2,ZHAO Yongli1,HUANG Xiaoming11. School of Transportation,Southeast... was investigated based on micromechanical modeling and virtual test by using three-dimensional discrete element method(DEM). A user-defined micromechanical model of asphalt mixture was established after......
Salt spray corrosion test of micro-plasma oxidation ceramic coatings on Ti alloyHAO Guodong1, 2), YAO Zhongping1), and JIANG Zhaohua1) 1) Department of Applied Chemistry, Harbin Institute... by micro-plasma oxidation (MPO). The salt spray tests of the coated samples and the substrates were carried out in a salt spray test machine. The phase composition and surface morphology of the coatings......
及钛合金管材的自动超声检测. 关键词:超声检测;旋转头;自动探伤 中图分类号:TG146 文献标志码:A Research on automatic ultrasonic test system of probe rotating type for tubes MA Xiao-huai, JIANG Li-xin, WANG Hai-liang (Baoti Group Co., Ltd., Baoji 721014, China) Abstract: A set of automatic ultrasonic test (UT) system of probe rotating type for tubes was used researched and established to settle......
基于Test Suite TW软件研发的1000kN电子拉伸试验机低周疲劳测试方法张建伟,方健宝山钢铁股份有限公司研究院摘 要:采用一台常规MTS 1 000kN电子拉伸试验机配置全自动引伸计,套筒式8 000psi液压夹具,配合MTS公司的Test Suite TW软件,设计研发出了一套可应力,应变控制的低周疲劳测试方法.该方法可对测试速率进行设置,实时显示,采集,复验波形,可在配备Test Suite控制软件的MTS电子拉伸试验机系统上推广,提供一套低成本的低周疲劳检测方案,特别适用于材料大应变,短时低周疲劳的日常检测.关键词:电子拉伸试验机;低周疲劳;MTS;Test Suite TW软件;大应变;......
Aging Coefficient, Creep Coefficient and Extrapolating Aging Coefficient from Short Term Test for Sealed ConcreteShrestha K MCollege of Civil Engineering, Fuzhou University摘 要:test. A year of relaxation test and two years......
Technology Optimized Test on the Cutter of Agricultural Machine by Flame Spraying and Remelting NiWC Alloy MA Yue-jin1,SHEN Yu-zeng1,HAO Jian-jun1,LI Hui-ping2 (1.College of Mechanical... test and multiple factors variance analysis, how the test factors influence the wear-resistance was studied.The technology parameters of flame spraying and remelting NiWC alloy were optimized......
J. Cent. South Univ. (2017) 24: 2382-2395 DOI: https://doi.org/10.1007/s11771-017-3650-2 Test and numerical investigations on static and dynamic characteristics of extra-wide concrete self-anchored...-anchored suspension bridge under static and dynamic vehicle loads. Based on the field test using 12 heavy trucks and finite element simulations, the static deformations of different components, stress......
of permanent deformation response parameters based on field extracted cores and lab-mixed duplicates. A new "mix-confined" test is developed and four new parameters for this test are proposed. Correlation... developed test. The results show that, newly developed test can capture the changes of permanent deformation of asphalt mixtures. Only one new parameter (D1 of Stephen Price model) and one existing......
Test research on sticking mechanism during hot rolling of SUS 430 ferritic stainless steelJun-xian Liu, Yong-jun Zhang, and Jing-tao Han School of Materials Science and Engineering, University... by means of a two-disc type high-temperature wear tester. The test results indicate that sticking particles on the surfaces of high chromium steel (HiCr) and high-speed steel (HSS) rolls undergo nucleation......