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微观组织结构,提高油气输送管线焊接接头高低周疲劳性能,改善油气输送管线焊接接头残余应力分布和提高管线钢基体与防腐层结合能力等方面的应用进行了展望,认为SMAT技术在油气输送管线焊后处理中的应用具有广阔的前景. 关键词:表面机械研磨处理(SMAT); 表面纳米化; 油气输送管线; 焊后处理; surface mechanical attrition treatment (SMAT); surface nanocrystallization; oil-gas pipeline steel; treatment after welding; [全文内容正在添加中] ......
. Key words: nickel-plated steel; micro-resistance spot welding; electrode degradation mechanism; surface treatment 微型点焊已被广泛应用于微电子, 通信及医疗器件的连接和组装中. 在微型点焊中, 由于电极没有循环水冷却, 电极容易失效, 并成为微型点焊过程...键词: 镀镍钢板; 微型点焊;电极失效机制; 表面处理 中图分类号: TG431 文献标识码: A Effect of TiC coating on electrode tip surface on electrode degradation during micro-resistance spot welding DONG Shi-jie1, ZHOU Norman2 (1......
J. Cent. South Univ. Technol. (2010) 17: 906-910 DOI: 10.1007/s11771-010-0575-4 Cooperative effect of surface alloying and laser texturing on tribological performance of lubricated surfaces... surface texturing (LST) and double glow plasma surface alloying on tribological performance of lubricated sliding contacts was investigated. A Nd:YAG laser was used to generate microdimples on steel......
Surface resistivity of carbonaceous fiber/PTFE antistatic coatingsZHANG Shan(张姗)1, 2, WANG Cheng-guo(王成国)2, YUAN Hua(袁华)2, ZHU Bo(朱波)2, YU Mei-jie(于美杰)2, ZHANG Bing-ming(张丙明)2, HAN Rong-heng(韩荣恒)3... fibers were prepared at the heat treatment temperature (HTT) range of 650 to 900 oC. The relationships among HTT, carbon content and volume resistivity of the carbonaceous fibers were investigated......
Surface modification of titanium using steel slag ball and shot blasting treatment for biomedical implant applicationsBudi Arifvianto,Suyitno,Muslim MahardikaCenter for Innovation of Medical...="ChDivSummary">Surface modification is often performed using grit or shot blasting treatment for improving the performances of biomedical implants.The effects of blasting treatments using steel slag balls......
Trans. Nonferrous Met. Soc. China 20(2010) s768-s773 Microstructural evolution of Mg9AlZnY alloy with vibration in lost foam casting during semi-solid isothermal heat treatment...) and the microstructure of Mg9AlZnY alloy was analyzed. On this basis, the morphology and size of a-Mg grains fabricated by semi-solid isothermal heat treatment(SSIT) at 530 ℃ and 570 ℃ holding different time were studied......
surface decoration can be improved to 73.1MPa with surface treatment. 关键词:carbon fiber; electrochemical synthesis; surface treatment; [全文内容正在添加中] ... used electrochemical synthesis to decorate the surface of high-module carbon fiber by PABA/BPA reaction system.Develop continual electrochemical synthesis process in this reaction system and research......
Characteristics and properties of surface coated nano-TiO2 GAO Jia-cheng(高家诚), ZOU Jian(邹 健), TAN Xiao-wei(谭小伟), WANG Yong(王 勇) College of Materials Science and Engineering, Chongqing University.... Noncrystal SiO2 was coated on the surface of nano-TiO2 to form silica gel polymer with a Ti-O-Si bond, while aluminum compound exists in the form of AlOOH and part Al(OH)3. The integrated dense film can......
. The cycling voltage-amp curves prove the phenomenon. Keyword: hydrogen storage alloys; chemical copper plating; surface treatment; Received: 2000-02-08... of Ti0.26Zr0.07V0.23Mn0.13Ni0.3Cr0.01 alloy powders coated with Cu have been studied. The experimental results show that Cu layer on the surface slightly decreases both the activation property and the maximum electrochemical......
words: gear teeth; finishing treatment; surface layer; contact fatigue strength; pitting 1 Introduction The whole technological process, particularly its finishing phase is an important step towards creation of the gears surface layer, which should lead into the improvement of tribological wear resistance. The issues related to the finishing treatment were presented by Chen et al [1] about......