国内外镁合金铸件射线照相检测验收标准对比  

Comparison of Domestic and Foreign Acceptance Standards for Radiographic Testing of Magnesium Alloy Castings

作　　者：丁方政 胡可加 DING Fang-zheng;HU Ke-jia(The 6th Military Representative Office of Air Force Equipment Department in Beijing,Beijing 100016,China;Hebei Steel Research Dekai Technology Co.,Ltd.,Baoding 072750,Hebei,China)

机构地区：[1]空装驻北京地区第六军事代表室,北京100041 [2]河北钢研德凯科技有限公司,河北保定072750

出　　处：《铸造》2025年第2期246-251,共6页Foundry

摘　　要：国内标准主要以铸件应用行业来划分,国外ASTM标准及AMS标准则主要以铸造成形方式以及合金成分来划分。在验收方式上,国内标准普遍采用混合方式验收,采用定量计算法评定气孔和夹渣类缺陷,采用图谱对比法评定疏松和偏析缺陷;国外标准采用图谱对比法进行所有缺陷的验收。不同标准在偏析缺陷的验收等级设置上具有一致性,但在个别偏析缺陷的验收等级上存在较大分歧。不同偏析成分的底片影像显示不同,不含锆镁合金的偏析缺陷显示与ASTM E155标准底片的显示存在差异。Domestic standards are mainly divided by the casting application industry,while foreign ASTM standards and AMS standards are mainly divided by the casting forming method and alloy composition.In terms of acceptance methods,domestic standards generally adopt a mixed method of acceptance,using quantitative calculation methods to evaluate defects such as gas holes and inclusion,and using chart comparison methods to evaluate defects such as shrinkage and segregation.Foreign standards use the chart comparison method for the acceptance of all defects.Different standards have consistency in setting the acceptance level for segregation defects,but there are differences in the acceptance level for individual segregation defects.Images of films with different segregation components show differences,and there are differences in the display of segregation defects between films without zirconium magnesium alloys and ASTM E155 standard films.

关 键 词：镁合金 铸件 射线检测 验收标准 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TG115.22[金属学及工艺—金属材料]