The Ways of Penetrant Testing Applicability for Rough Surfaces
Liquid penetrant testing methods represent a multi-process procedure, which can be applied under the condition that the roughness of tested surface is lower than certain critical value. As far as many industrial objects have comparatively rough surface the application of penetrant testing for them in many cases is impossible. To eliminate this difficulty preliminary processing of the surface with the aim to decrease a roughness can be applied. But in the most cases a surface treatment leads to inadmissible decrease (or even closing) of defect?ˉ opening. The researches of the influence of several kinds of surface treatment upon defects? shape and form are described in the paper. Special methods and equipment for decreasing of surface roughness at keeping defects opened are described. Some results of investigations, which enable the application of penetrant testing for rough surfaces are presented.
penetrant testing roughness electrochemical working.
Nikolai P. MIGOUN Nikolai V. DELENKOVSKY
Institute of Applied Physics, National Academy of Sciences,Academicheskaya, 16, Minsk, Belarus 220072
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
2227-2231
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）