Corrosion resistance evaluation method for low alloy structural steel
An evaluation method and technology for low-alloy steel, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., which can solve the problems of inconvenient operation and long experimental period, and achieve the effect of shortening the experimental period and simple experimental process.
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[0023] Example
[0024] The weight percentages of the chemical components of the low-alloy steel of the embodiment using the low-alloy structural steel corrosion resistance evaluation method of the present invention are shown in Table 1. And according to the low-alloy steel corrosion resistance index I calculation formula, the corrosion resistance indexes of the eight embodiments are obtained, as shown in Table 2.
[0025] Table 1 The chemical composition of the eight examples
[0026]
[0027] Table 2 Values of atmospheric corrosion resistance index I of eight test steels
[0028]
[0029] Cut the eight sample samples in the normal direction into 10mm×10mm×3mm sheet-like samples. After graded by 60-2000 water sandpaper, the samples are mechanically polished, and then cleaned with deionized water and acetone. , To remove oil stains on the surface. Then, according to "GB / T 10561-2005 Determination of Non-metallic Inclusion Content in Steel, Standard Grading Chart Microscopic Inspec...
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