无取向硅钢无铬环保涂层激光焊接性能研究  

Study on laser welding performance of chromium free environment friendly coating for non-oriented silicon steel

作　　者：戴小华[1] 陆天林 占云高[1] 施立发[1] DAI Xiaohua;LU Tianlin;ZHAN Yungao;SHI Lifa(Technology Center of Maanshan Iron and Steel Co.,Ltd.,Maanshan 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243000

出　　处：《电工钢》2024年第3期16-20,共5页ELECTRICAL STEEL

摘　　要：通过金相显微镜、电子背散射衍射(EBSD),研究了无取向硅钢涂层厚度、涂层种类、焊接工艺对焊接性能的影响。研究结果表明,在本实验条件下,涂层厚度与焊接起泡面积百分数呈正比,涂层中的有机物是影响焊接起泡的主要因素,焊接过程中,组织由等轴晶逐渐长大,形成柱状晶,最终形成较大、较均匀的大晶粒。The effects of coating thickness,coating type,and welding process on the welding performance of non-oriented silicon steel were investigated through metallographic microscopy and electron backscatter diffraction(EBSD).The results indicated that:under the conditions of this experiment,the coating thickness was directly proportional to the percentage of welding foaming area,and the organic matter in the coating was the main factor affecting welding foaming.During the welding process,the microstructure gradually grows from equiaxed grains to columnar grains,ultimately forming larger and more uniform large grains.

关 键 词：无取向硅钢 环保涂层 焊接性能 

分 类 号：TG142.77[一般工业技术—材料科学与工程]