کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1573378 1514674 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of interface oxides on shear properties of hot-rolled stainless steel clad plate
ترجمه فارسی عنوان
اثر اکسید های متحرک بر خواص برشی فولاد ضدزنگ فولاد ضد زنگ داغ
کلمات کلیدی
صفحه پلاستیکی ریز ساختار اینترفیس، مقاومت برشی، مدل شکستگی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی

This paper aims at determine the effect of interface oxides on shear properties of 316L stainless steel/HSLA steel clad plate by studying interface microstructure, characteristics of interface oxides and shear fracture model. It was found that carbon element diffusion caused the forming of a decarburized ferrite zone (DFZ) of the substrate and a carburized austenite region (CAZ) of the clad metal, and between those two metals, a high-hardness band (HHB) with rapid element component change are formed in the solid-state diffusion bonding process. It was revealed that, at the micro-scale, when oxides concentrated area on the boundary of CAZ reaches up to a threshold size, DFZ crack may carve across the rigid HHB and propagate along CAZ boundary during the shear test. Thus macro-scale nonuniform distribution of oxides led to massive competitive cracking between the plastic DFZ and the high-strength CAZ, and statistically maintain the shear strength at a high level for test samples with a medium oxidation level. Nevertheless, those clad plates may still fail to meet the performance request of products, since the cladding interface tended toward a low fracture toughness failure during the process of deformation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 669, 4 July 2016, Pages 344–349
نویسندگان
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