کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
832426 1470368 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The improvement of weathering resistance by increasing P contents in cast strips of low carbon steels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
The improvement of weathering resistance by increasing P contents in cast strips of low carbon steels
چکیده انگلیسی

Cast strips of low carbon steels with different P contents (0.08, 0.15, and 0.26 wt%) were fabricated by using a pilot twin roll strip caster, whose mechanical properties were measured to be as good as those of the conventional counterparts. The weathering resistance of cast strips was assessed by the dry and wet cyclic accelerated corrosion test with the corrosive reagent in a 0.005 mol/l NaHSO3 solution (pH 4.5) at 30 °C with the humidity of 60%. Surface and cross-section morphologies of rust layers formed on the cast strips were observed and analyzed by SEM and EDX. The rust surfaces became to be more homogeneous and compact with increasing P content in cast strips. After 120 cycles of corrosion exposures, the average thickness of rust layers formed on the strips containing 0.15 and 0.26% P was less than 60% of that on the strips with 0.08% P. The P enrichment was observed at the interface between rust layer and substrate, which was believed to be responsible for the improvement of weathering resistance by retarding corrosive agents from further penetrating the substrate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 30, Issue 10, December 2009, Pages 4342–4347
نویسندگان
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