文章基本信息

标题：Al合金A5083-0材突合せ継手のブローホール許容欠陥率とJIS規格との対応について
本地全文：下载
作者：野崎甚蔵 ; 阪井大輔 ; 矢島浩等
期刊名称：日本造船学会論文集
印刷版ISSN：0514-8499
电子版ISSN：1884-2070
出版年度：1982
卷号：1982
期号：152
出版社：The Japan Society of Naval Architects and Ocean Engineers
摘要：Weld defects such like blow holes, porosities, etc. are not likely to become high stress raisers compared with planar defects like incomplete fusion. But, if their size and number are very large, fatigue strength becomes lower. Radiographic test has often been used to assure the integrity of welded joints. However, grade of defects classified by JIS Code does not have sufficient correlation with actual fracture strength.Then, both radiographic tests and fatigue tests were carried out for A 5083-0 aluminum butt welded joints with porosities. The correlation between JIS Code and defect rate in X-ray photograph, and the correlation between defect rate in X-ray photograph and defect-area rate in fracture surface were made clearer. In addition, allowable defect-area rates in fracture surface and their corresponding JIS grade of defects were determined for respective surface treatment of butt welded joints.