共搜索到8749条信息，每页显示10条信息，共875页。用时：0小时0分0秒351毫秒
Diffusion bonding of Ti-6Al-4V by pulse current heating and hot-pressing HE Dai-hua(何代华), FU Zheng-yi(傅正义), WANG Wei-min(王为民) State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China Received 28 July 2006; accepted 15 September 2006 Abstract: Pulse current heating (PCH) was used to join Ti-6Al-4V alloy at two......
......
Formation mechanism of pulse current anodized film on AZ91D Mg alloy QIAN Jian-gang(钱建刚), WANG Chun(王 纯)1, LI Di(李 荻)1, GUO Bao-lan(郭宝兰)1, SONG Guang-ling(宋光铃)2 1. School of Materials Science...; Abstract: The kinetics of forming process of pulse current anodized film on AZ91D Mg alloy was studied by the voltage-time......
......
......
......
are submerged in an acidic electrolyte that is either flowing or stationary. Insoluble and low-electrical-resistant copper is used as the cathode electrode. When a pulse current is sent to the two electrodes... for corrosion resistance against synthetic seawater with respect to pulse time. The x-axis on the Tafel curve shows the current density, and the y-axis shows the potential [9], the corrosion......
and current densities. Compared with direct current electrodeposition, the thicker coating and finer grains can be obtained at lower temperature and current density by pulse electrodeposition. The electrodepostion velocity is about 0.24 ?m/min, which is faster than that by direct current electrodeposition. In 1 mol/L H2SO4, 3.5% NaCl and 10% NaOH solution, corrosion potential of Cr pulse-deposited film......
Effect of Pulse Parameters on Deposition in Concrete Crack using Pulse Current Electro-deposition储洪强1,WANG Tingting1,JIANG Linhua1,XU Yi1,SONG Zijian1,XU Ning2,ZHAO Sujing11. College of Mechanics... in concrete cracks, five different types of pulse current were set up, and ZnSO4 and MgSO4 solutions were used as the electrolytes. The rate of weight gain, rate of surface coating, rate of crack closure......
-W-P-SiC composite coatings have been studied. The results indicate that pulse current can improve the deposition rate of RE-Ni-W-P-SiC composite coatings; W, P, and SiC contents in the coating... with the increase of duty cycle, W content reaches the lowest value, and P content reaches the highest value at r=0.4; pulse current and RE can lend to smaller size of the crystalline grains; however......
