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coating by multi-track overlapping laser induction hybrid rapid cladding[J]. Optics & Laser Technology, 2012, 44(1): 190-197. [13] YANG Yu-ling, ZHANG Duo, YAN Wei, ZHENG Yi-ran. Microstructure...360 mm/min,功率为2.5 kW,WC含量为30%(质量分数)时,熔覆层的各项性能达到最优. 关键词:液压油缸;激光熔覆;能量密度;硬度;耐磨性 中图分类号:TG174.44 文献标志码:A Microstructure and wear resistance of laser cladding NiCrMn-WC composite......
Influence of rapid quenching on hydrogen storage characteristics of nanocrystalline Mg2Ni-type alloys ZHANG Yang-huan (张羊换)1, 2, ZHAO Dong-liang (赵栋梁)1, LI Bao-wei (李保卫)2, GUO Shi-hai (郭世海)1, QI... synthesized by rapid quenching technique. The microstructures of the as-cast and quenched alloys were characterized by XRD, SEM and HRTEM. The electrochemical hydrogen storage performances were......
Liquid phase separation of Cu-Cr alloys during rapid cooling SUN Zhan-bo(孙占波), WANG You-hong(王宥宏), GUO Juan(郭 娟) School of Science, Xi’an Jiaotong University, Xi’an 710049, China Received 10 November 2005; accepted 2 May 2006 Abstract:The ribbons of Cu-Cr alloys with high Cr content (15%-35%, mass fraction) were prepared by rapid solidification. The microstructures of solidified samples......
J. Cent. South Univ. (2017) 24: 1779-1788 DOI: https://doi.org/10.1007/s11771-017-3586-6 A novel hybrid estimation of distribution algorithm for solving hybrid flowshop scheduling problem... and Technology), Shanghai 200237, China Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: The hybrid flow shop scheduling problem with unrelated parallel machine is a typical NP-hard......
material close to the surface and the rapid self-quenching provided by the bulk of the material results in the formation of martensite[10]. The hardness values also show that the laser cladding layers...-y axis CNC gantry table. Cladding tracks were formed by moving the specimen relative to the beam in the x-direction. During deposition, the substrate displacement speed under the laser beam was 500......
Laser Cladding Al-Si/Al2O3-TiO2 Composite Coatings on AZ31B Magnesium Alloy崔泽琴摘 要:To improve the wear resistance and corrosion resistance of magnesium alloys, a 5 kW continuous wave CO2 laser was used to investigate the laser surface cladding on AZ31B magnesium alloys with Al-Si/Al2O3 -TiO2 composite powders. A detailed microstructure, chemical......
Effects of laser phase transformation hardening parameters on heat input and hardened-bead profile quality of unalloyed titanium D. S. BADKAR1, K. S. PANDEY1, G. BUVANASHEKARAN2 1... Received 13 July 2009; accepted 4 January 2010 Abstract: Laser transformation hardening (LTH) of unalloyed titanium of 1.6 mm-thick sheet, nearer to ASTM Grade 3 of chemical composition was investigated......
J. Cent. South Univ. (2017) 24: 1360-1368 DOI: 10.1007/s11771-017-3540-7 Design and simulation of electrical dynamometer using improved DTC induction motor driver ZHU Cheng-li(朱成礼), WANG Yan-zhong(王...: AC motors, especially the squirrel cage induction motors have the advantages of simple structure, good reliability and low cost. They are more suitable to be used as electrical dynamometers to provide......
steel prepared by powder feeding laser cladding [J]. Optics & Laser Technology, 2007, 39: 1544-1550. [6] van elsen m, al-bender f, kruth j p. Application of dimensional analysis to selective laser melting [J]. Rapid Prototyping Journal, 2008, 14(1): 15-22. [7] Quintino L, costa a, miranda r, yapp d, kumar v, kong c j. Welding with high power fiber lasers-A preliminary study [J]. Mater......
Collapse behavior evaluation of hybrid thin-walled member by stacking condition Kil-Sung LEE1, Hyeon-Kyeong SEO2, Yong-June YANG2, Woo-Chae HWANG2, Kwang-Hee IM3, In-Young YANG4 1. R&D... or carbon fiber reinforced plastics (CFRP) is representative one of the light-weight materials. Based on the respective collapse behavior of aluminum and CFRP member, the collapse behavior of hybrid thin......