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Process of pulse electrodeposition nanocrystalline chromium from trivalent chromium bath HE Xin-kuai(何新快)1, 2, QIU Guan-zhou(邱冠周)1, CHEN Bai-zhen(陈白珍)1, ZHOU Ning-bo(周宁波)1, WU Lu-ye(吴璐烨)2, XU Li... 412008, China Received 15 July 2007; accepted 10 September 2007 Abstract: Nanocrystalline chromium coating was prepared by pulse electrodeposition from trivalent chromium bath containing carboxylate-urea......
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Effect of partial pressure of reactive gas on chromium nitride and chromium oxide deposited by arc ion plating LI Ming-sheng(李明升)1, 2, FENG Chang-jie(冯长杰)2, WANG Fu-hui(王福会)2 1. Jiangxi Key... for the attempt to prevent the peel of the coating. Key words: chromium nitride; chromium oxide; arc ion plating; reactive gas partial pressure 1 Introduction Arc ion plating (AIP) technique is one......
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; 中图分类号:X 131.3 文献标识码:A Chromium fractions in soils contaminated by chromium-containing slag YANG Zhi-hui, WANG Bing, HUANG Shun-hong, CHAI Li-yuan, PENG Bing, SU Chang-qing... to investigate the contents of various chromium fractions including water soluble chromium, exchangeable chromium, carbonate bonded chromium, organics bonded chromium, Fe-Mn bonded chromium and residual chromium......
SPHERICAL MICROSTRUCTURE FORMATION OF THE SEMI-SOLID HIGH CHROMIUM CAST IRON Cr20Mo2 W.M.Mao1,X.Y.Zhong1,A.M.Zhao1 (1.University of Science & Technology Beijing, Beijing 100083, China) Abstract:The nondendritic semi-solid slurry preparation of high chromium cast iron Cr20Mo2 has been studied in this paper. The experiments show that the proeutectic austenitic particles are more spherical under......
J. Cent. South Univ. Technol. (2010) 17: 1155-1162 DOI: 10.1007/s11771-010-0612-3 Microstructures and wear resistance of chromium coatings on P110 steel fabricated by pack cementation LIN Nai...-performance surface on P110 steel that can meet the requirements in oil/gas field environment, the chromium coatings were fabricated by pack cementation. The chromium coatings differed in with/without......
Detoxification of chromium-containing slag by Achromobacter sp. CH-1 and selective recovery of chromium CHAI Li-yuan(柴立元), WANG Yun-yan(王云燕), YANG Zhi-hui(杨志辉), WANG Qing-wei(王庆伟), WANG Hai-ying... metallurgy, a novel technology for the detoxification of chromium-containing slag by Achromobacter sp. CH-1 and chromium recovery was proposed. Strain CH-1 cell morphology before and after Cr......
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