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behavior of Co-containing maraging stainless steels was investigated. Neutral salt spray and polarization test showed that maraging stainless steel with high Co content showed poor corrosion behavior. Microstructure observation proved that segregation of Cr in the matrix deteriorated its corrosion resistance. The surface morphology of the aged maraging stainless steel with high Co content......
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Structural optimization for ball valve made of CF8M stainless steel Xue-Guan SONG, Seung-Gyu KIM, Seok-Heum BAEK, Young-Chul PARK Department of Mechanical Engineering, Dong... of the valve. The results show that using this process can save valve mass as well as the computational expense effectively. Key words: ball valve; CF8M stainless steel; trade-off method; response surface......
SUS304不锈钢表面抛光缺陷原因分析及改进措施茅卫东1(1.上海市宝山钢铁股份有限公司)摘 要:对SUS304不锈钢抛光"点状"缺陷解析表明,缺陷主要是由于Al2O3等脆性夹杂物在抛光处理后部分脱落而形成.控制钢水T[Al],提高AOD炉渣还原性能,喂SiCaBa线处理等夹杂物控制技术,实现了板坯总[O]从45.1μg/g下降为30.7μg/g,而且夹杂物变性,改善了表面抛光"点状"缺陷.关键词:SUS304不锈钢; 点状缺陷; 夹杂物; 抛光......
Trans. Nonferrous Met. Soc. China 20(2010) s998-s1004 Thixocasting combination spanners using stainless steel X39CrMo17 M. B?NCK1, E. SUBASIC1, A. B?HRIG-POLACZEK1, K. JIANG2, S. ... be processed. In cooperation with industrial partners, X39CrMo17 stainless steel combination spanners with 17 mm width across flats were thixocast. Forming dies were designed and optimized......
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, there is an increasing focus on the utilization of nickel laterite ores, along with the growing demand for stainless steel and the declining of sulphide ores[5-7]. The traditional methods for treating... Leaching of magnesium from desiliconization slag of nickel laterite ores by carbonation process MU Wen-ning(牟文宁)1, ZHAI Yu-chun(翟玉春)2, LIU Yan (刘 岩)2 1. Department of Materials Science......
IN SITU OBSERVATION OF GROWTH BEHAVIOR AND MORPHOLOGY OF DELTA-FERRITE AS FUNCTION OF SOLIDIFICATION RATE IN AN AISI304 STAINLESS STEEL G.F. Liang1,G.M. Zhu1,Y. Fang1,J.C. Wu1,C.Q. Wan1,Y. Yu1...:It was presented the in situ observation of growth behavior and morphology of delta-ferrite as a function of solidification rate in an AISI304 stainless steel. The specimens have been solidified......
Spatial distribution of chromium in soils contaminated by chromium-containing slag HUANG Shun-hong(黄顺红)1, 2, PENG Bing(彭 兵)1, YANG Zhi-hui(杨志辉)1, CHAI Li-yuan(柴立元)1, XU You-ze(许友泽)1, SU Chang...; Abstract: To evaluate the metal chromium (Cr) contamination of soil at a chromium-containing slag site by ferrochromium production, the contaminated sites, under slag heap......