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J. Cent. South Univ. (2020) 27: 3464-3476 DOI: https://doi.org/10.1007/s11771-020-4559-8 Hydration process of rice husk ash cement paste and its corrosion resistance of embedded steel bar WANG Hui.... These working conditions created many factors which corrode steel bars in concrete [24]. Some researches pointed out that RHA was able to improve the compactness and promote the hydration process of cement......
Plasma and Gaseous Nitrocarburizing of C60W Steel for Tribological Applications A.Shafyei1,M.Mirjani2,F.Ashrafizadeh3 (1.Dept. of Materials Engineering,, Isfahan University of Technology, Isfahan... nitrocarburizing processes for C60W steel in terms of structural features of the layers and the tribological properties of the specimens. Gaseous treatments were performed in a sealed quench industrial......
Ti微合金化冷轧高强钢的再结晶温度研究吕盛夏1,陈事1,毛新平2,王喜1,朱达炎1,霍向东1(1.江苏省镇江市江苏大学材料科学与工程学院2.广钢CSP应用技术研究所,广东广州 510730)摘 要:采用半小时等温法,显微硬度测量和金相组织观察等试验手段,研究了Ti微合金化冷轧高强钢的再结晶温度.结果发现:不同变形量的冷轧板再结晶规律基本相同,再结晶温度随变形量增加略有降低;640℃以下为回复阶段,随着温度升高,等轴晶大量形核长大,硬度迅速降低,到840℃再结晶晶粒反常长大;该钢种的再结晶温度高达700~710℃......
, high strength, high toughness, and excellent resistance to pitting and crevice corrosion [1-3]. However, many issues presented in the production process, such as the low nitrogen content, poor... and Technolog, 2011, 42(10): 2905-2910. (in Chinese) [2] ROKANOPOULOU A,PAPADIMITRIOU G D. Production of high nitrogen surfaces on 2205 duplex stainless steel substrate using the PTA technique [J......
-foaming process for production of metallic foams [J]. Hot Working Technology, 2004, 12: 59-63. [5] BANHART J. Manufacture, Characterization and application of cellular metals and metal foams [J]. Progress... Function of grinding fly ash in production of aluminum foam WANG Yong(王 永), YAO Guang-chun(姚广春), LI Bing(李 兵) School of Materials and Metallurgy, Northeastern University, Shenyang......
无缝钢管生产线电力拖动调速系统的合理选用黄建荣1(1.湖南省衡阳市湖南衡阳钢管(集团)有限公司工程项目管理部)摘 要:根据无缝钢管生产线工艺设备对电力拖动调速系统的要求,通过对全数字直流及交流电力拖动调速系统特点和性能的比较分析,从性价比的角度对无缝钢管生产线电力拖动调速系统的合理选用进行了深入的探讨.对无缝钢管及类似生产线的电力拖动调速系统的合理选用有所借鉴.关键词:无缝钢管生产线； 电力拖动调速系统； 全数字直流调速系统； 交流调速系统； 变频器......
and compared with that in hydrogen. 2 Experimental 2.1 Experimental process The stainless steel powders were the main material used in this study. Their chemical analysis results are shown in Table 1. Other materials were polyurethane sponge (0.8 pore/mm) and polyvinyl alcohol. The preparation process of stainless steel foam precursor with 3-D open-cell network structure could be seen in Ref.[9......
in the steel-making process. It is an important resource that can be effectively utilized. An experiment was described in which steel slag was tested as an adsorbent for the removal of phosphorus from waste...PHOSPHORUS REMOVAL USING STEEL SLAG S. Zhang1,Y.Z. Lan1,R. W. Smith2,J.K. Wang3 (1.Engineering and Technology Research Institute, Yunnan University,Kunming 650091, China;2.Metallurgical......
Cu/Fe复合粉工业制备工艺及性能分析王晓军1,高鸣智2(1.广东省广州市广东技术师范学院机电学院2.上饶职业技术学院,江西上饶 334109)摘 要:研究用烧结法工业化制备合金粉末.在铁粉颗粒表面均匀地包覆一层Cu膜,Cu/Fe复合粉兼容铜基导热能力高,耐腐蚀和铁基承载能力强两方面优点,可用于生产含油轴承,结构件,摩擦零件.制造时无污染,不产生任何有害物质.由于不带任何酸性杂质,不会造成后续的粉末氧化.关键词:金属材料； 铜铁复合粉； 烧结法； 扩散； 包覆......
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