【摘 要】
：
Arc-added glow discharge plasma penetrating technique is a new surface coating method. With the help of vacuum arc discharge, a cold cathode arc source continua
【机 构】
：
Research Institute of Surface Engineering,No.2 Research Institute of China Electronics Technology Gr
【基金项目】
：
Shanxi province science fund,China
论文部分内容阅读
Arc-added glow discharge plasma penetrating technique is a new surface coating method. With the help of vacuum arc discharge, a cold cathode arc source continually emits ion beams of coating elements with high currency density and high ionizing ratio. As the ion bombard and diffusion working on, the surface of the parts form deposited layer,penetrated layer and hybrid layer. Under lab condition, a commercial magnesium alloy Az91 had been coated with Ti film layer with the aim of improving its anti-corrosion performance. This paper mainly summarized our studies on the testing and analyzing of the coating layer. The composition and microstructure of the coating layer had been analyzed by means of X-ray diffraction (XRD) and glow discharge spectrum (GDS), and the surface appearance had been surveyed by scanning electronic microscope (SEM). The adhesion strength between film and matrix had been evaluated by experiments of sticking-tearing. The results indicated that the coated layer on magnesium alloy were homogeneous, dense and robustly adhered.
其他文献
灌溉水利用系数包括渠系水利用系数和田间水利用系数.由于灌区渠系复杂、级数多、不同地区有不同的地貌、水文及土壤条件,采用传统的测定法所获得的灌溉水利用系数均不能反映
目的:总结空心加压螺钉固定、股方肌骨瓣转移治疗有移位的股骨颈骨折的效果,探讨影响疗效的相关因素.方法:2005年1月～ 2011年5月对有移位的股骨颈骨折42例,采用切开复位空心加
目的:探讨歪鼻矫正并鼻中隔偏曲同期整形手术的治疗效果,改进手术方法.方法:采用隆鼻入路单侧鼻翼侧缘切口,彻底分离鼻骨上覆盖组织,凿断两侧鼻骨与上颌骨额突结合部,凿开左
In this paper, the synthesis process of TiC+TiN multiple films on super-low-carbon stainless steels is reported.The TiC layer is coated as the first layer in th
根据现行双重化主变保护配置,针对双母线接线特点,提出主变保护旁路断路器代主变断路器方案.综合运用两套复压过流保护,实现对旁路开关区域的保护.提出两套主变后备保护接于
以激光二极管(LD)环形阵列侧面抽运Nd:YLF棒高增益放大器模块为基础,在经典的平凹驻波腔中加入一片Cr4+:YAG晶体作为被动Q开关,利用被动Q开关本身所具有的振荡选模功能以及两
A novel co-sputtering method that combined magnetron sputtering (MS) with ion beam sputtering (IBS) was used to fabricate CuCr alloy films without breaking vacu
MoS2/Ti composite coatings (MoSTM), have been deposited by a closed-field unbalanced magnetron sputter ion-plating system. The high ion-current densities at low
The interior of a high-pressure die-casting is of an unsatisfactory quality. Engine blocks made with this die casting process show lower specific engine perform
The magnetic properties and microstructure in a low cobalt Fe-25.5Cr-12Co alloy by different process of thermomagnetic treatment were investigated. It is found