کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
257187 503579 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study on the properties of corroded steel fibres
ترجمه فارسی عنوان
بررسی تجربی بر خواص الیاف فولادی خورنده
کلمات کلیدی
فیبر فولاد، خوردگی، ویژگی های مکانیکی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Steel fibres were corroded using two methods: drying–wetting cycles and current.
• The two corrosion methods show pitting and uniform corrosion respectively.
• Pitting corrosion leads to higher decrease in tensile strength compared to uniform corrosion.
• Pitting induces a significant reduction in elongation giving a brittle failure.

In this study, low carbon steel fibres were corroded to various corrosion degrees by cycling in 3.5% NaCl solution and 60 °C oven, and by applying a designed current density of 20 mA/cm2. Then the corrosion characters and corrosion degree on tensile strength of the two types of corroded steel fibres were investigated. It was found that the cycles induce pitting and the current induces relatively uniform corrosion. The results of tensile test show that the actual tensile strength of steel fibres was reduced in the case of pitting, while it was marginally affected by uniform corrosion. As the corrosion degree increased, both of the nominal tensile strength and elongation of the two types of corroded steel fibres decreased. In addition to weight loss, local section loss at the pits is the main reason for further degradation of the mechanical properties of steel fibres and gives a brittle failure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 79, 15 March 2015, Pages 165–172
نویسندگان
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