摘要
Abstract
X-ray radiography test is an effective inspection method for detecting internal defects such as porosity,slag inclusion,lack of fusion or incomplete penetration,and crack in double-side or single-side multi-pass weld,however the test quality is disturbed by many factors,including film quality,auditor’s experience etc. A special identification problem diffraction mottling exists in X-ray radiography of stainless steel weld. Therefore,most single-side,single-pass welded stainless steel pipe with thin wall thickness shall prefer to adopting visual inspection,ultrasonic test,eddy current etc. Even for double-side or single-side multi-pass welded stainless steel pipe,the X-ray radiography is not the only method to judge pipe quality.关键词
奥氏体不锈钢焊管/X射线照相/双面焊/单面多道焊/单面焊双面一次成形/衍射斑纹/晶界/偏析和多孔性Key words
austenitic stainless steel welded pipe/X-ray radiography/double-side weld/single-side multi-pass weld/single-side single-pass(penetration) weld/diffraction mottling/crystal boundary/porosity and segregation分类
矿业与冶金
