共搜索到507条信息,每页显示10条信息,共51页。用时:0小时0分0秒270毫秒
......
......
Synthesis and Characterization of ZnO Nanowires and ZnO–CuO Nanoflakes from Sputter-Deposited Brass(Cu0.65–Zn0.35) Film and Their Application in Gas SensingBhagaban Behera,Sudhir ChandraCentre... of nanowires,nanorods and nanoflakes on oxidized silicon substrates. Further, the use of the synthesized nanostructures for gas sensing was demonstrated. Pure brass(Cu0.65–Zn0.35) films were deposited......
......
alloy coating was produced on the brass substrate by laser-induction hybrid cladding (LIHC). The microstructure and property of the coating were investigated. The results show that during LIHC when... identified as ε-Cu phase precipitate inside the spherical α-Fe particles. As a result, the average microhardness of coating is about 2.8 times higher than that of the brass substrate. Key words: Cu-Fe......
., Jinan 250101, China; 3. CRRC Changchun Railway Vehicles Co., Ltd., Changchun 130062, China) Abstract: The laser welding-brazing process was developed for joining 5052 aluminum alloy and H62 brass in butt...) 摘 要:采用激光填丝熔钎焊方法对5052铝合金和H62黄铜异种金属进行对接试验,填充材料为Zn-15%Al (质量分数)药芯焊丝,研究激光功率对接头微观组织,界面层结构和力学性能的影响.结果表明:当激光功率2100 W时,接头因热输入过低而发生断裂,激光功率在2400~3300 W范围时,获得了性能良好的接头.黄铜侧界面附近的过渡区有Al4.2Cu3.2Zn0.7(相)和CuZn5化......
搅拌摩擦焊与手工电弧焊接头电化学腐蚀性能研究 王文礼1,尹娟1,王文1,张小龙1,王快社1,郭韡1 (1.西安建筑科技大学,陕西,西安,710055) 摘要:通过测定H65铜合金搅拌摩擦焊接头和手工电弧焊接头在3.5%NaCl溶液中的开路电位和极化曲线,研究其电化学腐蚀性能.结果表明,搅拌摩擦焊接头的抗腐蚀性能优于手工电弧焊接头.搅拌摩擦焊接头微观组织的细化,均匀化和致密化降低了晶界和晶粒在电化学上的不均匀性.手工电弧焊接头脱锌层和基体界面处产生的拉应力对抗腐蚀性能有较大影响. 关键词:H65黄铜; 搅拌摩擦焊; 手工电弧焊; 开路电位; 极化曲线; H65 brass alloy; friction stir welding; manual arc welding; open potential; polarization curve; [全文内容正在添加中] ......
;砷铝黄铜;耐蚀性能;加工性能 中图分类号:TG 146.11; TG 174.2 文献标识码:A Microstructure and properties of aluminum brass with Ce ZHANG Juan, LI Zhou, CHEN Chang, TANG Ning, ZHANG De-zhi (School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract: The processing abilities, structures and corrosion properties of the ceric aluminum brass......
Research Institute for Non-ferrous Metals, Beijing 100088, China Received 15 July 2007; accepted 10 September 2007 Abstract: The possibility of substituting 72.5Cu-22.7Zn-3.4Al brass for phosphorus... and 72.5Cu-22.7Zn-3.4Al brass to research their structure and characteristics, especially the electric conductivity for scrap copper and HV for the brass were researched. The results show......
Article ID: 1003-6326(2005)06-1242-06 Microstructure and properties of cutting magnesium-brass containing no lead HUANG Jin-song(黄劲松)1, PENG Chao-qun(彭超群)1, ZHANG Si-qi(章四琪)2, HUANG Bai... University, Changsha 410083, China) Abstract: A new environmental friend cutting brass containing magnesium instead of lead was produced by casting, extruding and drawing. Its microstructure was observed......