强流脉冲离子束表面再制造技术原理与应用  

Principle and Application of High-Intensity Pulsed Ion Beam for Remanufacturing Engineering

作　　者：朱小鹏[1] 董志宏[1] 刘臣[1] 韩晓光[1] 雷明凯[1] 

机构地区：[1]大连理工大学材料科学与工程学院表面工程研究室,大连116024

出　　处：《中国表面工程》2006年第z1期143-145,共3页China Surface Engineering

基　　金：国家自然科学基金(50575037)

摘　　要：采用TEMP–6型强流脉冲离子束(HIPIB)装置开展了HIPIB表面再制造技术的研发。HIPIB装置主体由高压脉冲电源系统和高功率离子二极管系统组成,通过高压短脉冲在二极管中放电产生阳极等离子体并引出ns级强流离子束。HIPIB辐照材料表面,发生显著的熔融、蒸发和剧烈烧蚀,物质喷射的反冲作用在辐照表面形成由表及里的应力波,导致材料表层强烈的热-力学效应。利用HIPIB与材料表面的相互作用,应用于涡轮叶片表面的清洗维修,可有效去除涡轮叶片基体因高温氧化形成的氧化物,伴随表层的重熔将叶片基体表面微观缺陷焊合,获得了光滑、平整的涡轮叶片修复表面。实现了HIPIB辐照在涡轮叶片表面再制造方面的应用。High-intensity pulsed ion beam (HIPIB) technique was studied for remanufacturing engineering. Based on a HIPIB apparatus,TEMP–6,HIPIB-materials interactions were investigated experimentally and numerically. It was found that HIPIB irradiation led to significant thermal and dynamic effects,including surface melting,evaporation and ablation of target materials,and subsequently strong stress waves propagating into the materials. Utilizing these outstanding characteristics,the application for remanufacturing was demonstrated by surface cleaning and repairing of turbine blades where the oxide scales on the surface were efficiently removed and the repaired surfaces were simultaneously smoothed under the remelting.

关 键 词：强流脉冲离子束 烧蚀 重熔 应力波 表面清洗维修 

分 类 号：O53[理学—等离子体物理] TH17[理学—物理]