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test and small punch test(SPT). The GNG top layer was fabricated on coarse grains(CG) AISI 304 by ultrasonic impact treatment. The results showed that the CG substrate could effectively suppress...Deformation Behavior and Formability of Gradient Nano-grained AISI 304 Stainless Steel Processed by Ultrasonic Impact Treatment杨新俊1,LING Xiang2,WANG Dongxiang1,王伟3,4,51. Jiangsu Key Laboratory......
, Beijing 100083, China;2.Department of Mechanical Engineering, Changsha University, Changsha 410003, China) Abstract:The effect of different peak temperature (Tp) and cooling time (ts/5) on hardness,impact toughness and fracture morphology in the heat-affected zone (HAZ) of HQ130steel was studied by using welding thermo-simulation test. Experimental results show that the impact toughness and hardness......
Crack propagation of Mg-Li alloys by impact load QU Zhi-ming(曲志明)1, LIANG Xiao-ying(梁晓颖)1, ZHOU Xin-quan(周心权)2, SHI San-yuan(史三元)1 1. School of Civil Engineering, Hebei Engineering University...> Abstract: Under impact load, using energy estimation and updated finite element method, the crack propagation of Mg-Li alloys was studied, and the relations between high speed impact, time interval......
: In view of the mechanics characteristic of cemented tailings backfill (CTB) at early age, the separation Hopkinson pressure bar test device was used to explore the effects of curing age and impact... curing ages were prepared for impact test under different impact energy. Sixteen groups of experiments were carried out to analyze the effects of curing age and impact energy on the mechanical properties......
J. Cent. South Univ. Technol. (2010) 17: 1351-1356 DOI: 10.1007/s11771-010-0641-y Engineering behaviors of reinforced gabion retaining wall based on laboratory test LIN Yu-liang(林宇亮), YANG Guo... Heidelberg 2010 Abstract: In order to study the engineering behaviors of reinforced gabion retaining wall, laboratory model test was carried out. Cyclic load and unload of five levels (0-50, 0-100......
J. Cent. South Univ. Technol. (2011) 18: 1068-1073 DOI: 10.1007/s11771-011-0805-4 Degradation of chlorothalonil by ultrasonic irradiation: Kinetics and impact factors GUO Hong-guang(郭洪光), GAO Nai.... Key words: ultrasonic irradiation; chlorothalonil; kinetics; impact factors 1 Introduction Chlorothalonil(2, 4, 5, 6-tetrachloroisophthalonitrile, CLT) is a high-efficient non-systemic organ......
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. By two-stage light gas gun, Wf/Cu82Al10-Fe4Ni4 composite hypervelocity projectile into concrete target test with the speed of 2.2 kmás-1is finished. By microstructure observation, it can be found.... Meanwhile, it can be found that microstructure morphology change of Wf/Cu82Al10Fe4Ni4 composite occurs after hypervelocity impact. The density of dislocations around the large-dimensional(Fe, Ni),AlFe......
