کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
832164 908116 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of laser offsets on joint performance of laser penetration brazing for magnesium alloy and steel
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of laser offsets on joint performance of laser penetration brazing for magnesium alloy and steel
چکیده انگلیسی

The experiments of laser penetration brazing for magnesium alloy and steel were carried out, and the effect of laser offsets on mechanical properties and microstructure of the welds was investigated. In the range of 0.4–0.8 mm, with the increase of laser offset, the tensile strength of the joints increased firstly and reduced afterward. In particular, at 0.6 mm laser offset, the average tensile strength could reach a maximum of 185 MPa, which was attributed to the defect-free joining of magnesium alloy to steel. If laser offset exceeded the optimized range (0.5–0.7 mm), the defects of welding crack or incomplete fusion would occur at the interface. As it could be noticed from hardness distribution, a rapid increase in hardness was found near the interface, which had some relations with the coarse microstructure and high element concentration of the interface.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 31, Issue 6, June 2010, Pages 3121–3126
نویسندگان
, , , ,