共搜索到12163条信息，每页显示10条信息，共1217页。用时：0小时0分0秒354毫秒
Microstructure and Mechanical Properties of Galvanized Steel/AA6061 Joints by Laser Fusion Brazing WeldingJunxia L,Wuxiong Yang,Shikai Wu,Xudong Zhao,Rongshi XiaoInstitute of Laser Engineering... technique using the laser-induced aluminium molten pool spreading and wetting the solid steel surface.Wide joint interface was formed using the rectangular laser beam coupled with the synchronous......
174.4 文献标志码:A Growth mechanism of cerium salt conversion coating modified with citric acid on galvanized steel KONG Gang1, WU Shuang1, LIN De-xin2, WANG Xia2, LI Han-chang2... 528000, China) Abstract: Cerium salt conversion coatings modified with citric acid were obtained on galvanized steel samples by immersing the samples into an aqueous solution containing 25 g/L Ce(NO3)3......
工艺参数对800MPa热镀锌双相钢组织性能的影响金光灿1,赵征志2,徐刚2,赵爱民2,刘光明3(1.北京市北京科技大学 冶金与生态工程学院2.北京科技大学 冶金工程研究院,北京 1000833.首钢技术研究院,北京 100039)摘 要:在实验室试制了低Si的C-Mn-Cr-Mo系的800 MPa级冷轧热镀锌双相钢,研究了卷取温度,退火温度,退火时间等工艺参数对双相钢微观组织和力学性能的影响.试验结果表明:试验用钢在820~850℃退火,保温100s以上,抗拉强度可以达到800 MPa级以上.随着退火温度的升高......
辉光放电离子溅射在扫描电镜样品制备中的应用余卫华1,陈士华1,李江文1,张穗忠1(1.湖北省武汉市武汉钢铁(集团)有限公司研究院)摘 要:辉光光谱仪的样品激发方式是阴极溅射,逐层分离.这个特点决定了该技术也可用于扫描电镜的样品制备中.扫描电镜可以用于观测热镀锌板镀层中的各种相,但由于某些相的厚度太薄,截面无法观测.本文利用辉光光谱仪对热镀锌板样品进行表面溅射,用扫描电镜对得到的不同厚度处的"新"表面进行了形貌观测,用能谱仪进行成分分析,达到了观测镀层中几乎所有相的目的,表明辉光放电离子溅射是一种可行的扫描电镜样......
of Sciences, Beijing 100039, China) Abstract: The inhibition effect of nicotinic acid, acridine and berberine on the hot dip galvanized steel in HCl solution was investigated by quantum chemistry... inhibitors for galvanized steel in HCl solutions. Key words: galvanized steel; inhibitor; quantum chemistry calculation; electrochemical measurement ......
Effect of Heat Treatment on Microstructures and Mechanical Properties of Hot-Dip Galvanized DP SteelsEnbao Pan1,Hongshuang Di1,Guangwei Jiang1,2,Chengren Bao31. State Key Laboratory of Rolling and Automation, Northeastern University2. Benxi Iron and Steel Co., Ltd3. Shougang Jingtang United Iron & Steel Co., Ltd摘 要:In order to simulate the hot-dipped......
Article ID: 1003-6326(2005)02-0437-06 Computer aided design of free-machinability prehardened mold steel for plastic HE Yan-lin(何燕霖)1, LI Lin(李 麟)1, GAO Wen(高 雯)2, WANG Qing-liang(王庆亮)2, WU Xiao-chun(吴晓春)1 (1.School of Materials Science and Engineering , Shanghai University, Shanghai 200072, China; 2. Shanghai No.5 Steel Co Ltd, Shanghai Baoshan Steel Group Co, Shanghai 200940......
; 文献标志码:A Growth mechanism of composite coatings obtained by phosphating and cerium nitrate post-sealing on galvanized steel LIN Bi-lan1, LU Jin-tang2, LI Yue-chan1 (1. School of Materials Science...: To enhance the corrosion resistance of galvanized steel, a composite coating was formed by phosphating and cerium nitrate post-sealing treatment. The microstructure, chemical composition, element valence......
有机胺类添加剂对热浸镀锌板钼酸盐钝化膜耐蚀性能的影响 吴成剑1,张召恩2,许淳淳1,周婉秋1 (1.北京化工大学,材料科学与工程学院,北京,100029;2.首钢技术研究院技术中心,北京,100041;3.沈阳师范大学,化学与生命科学学院,沈阳,110034) 摘要:应用电化学极化曲线和交流阻抗方法,研究了一种有机胺类添加剂对于热浸镀锌板钼酸盐转化膜耐腐蚀性能的影响;用扫描电子显微镜观察了不同添加剂浓度条件下形成的转化膜的微观形貌.结果表明,在一定范围内,添加剂浓度的增加有利于转化膜的形成,使转化膜的耐蚀性增强.当添加剂浓度超过一定数值时,由于转化膜形成过程较快,使得膜附着力下降并发生开裂,导致膜的保护作用降低. 关键词:镀锌板; 钼酸盐; 转化膜; 添加剂; galvanized steel; molybdate; conversion coating; addictive......
,焊接接头平均抗剪强度为27.70 MPa,断裂形貌表现为准解理和韧性的混合型断裂特征. 关键词:6016铝合金；镀锌钢；激光焊；模拟计算；BP神经网络；组织；性能 中图分类号:TG113.26 文献标志码:A Parameters optimization of laser welding process of galvanized steel... and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China) Abstract: The laser lap welding test on the galvanized steel and the 6016 aluminum alloy with tie fiber laser and no brazing......
