المحاكاة الحاسوبیة بإستخدام نموذج المنطق المشوّش للتنبأ بحركیات
التآكل الساخن في المطلي بطریقة الألمنة- سلكنة الآنیة المحورة
بالیتیریوم T الملح المنصھر للفولاذ |
The present
paper describes fuzzy logic simulation of an experimental study
on the behavior of hot corrosion in molten salt (Na2SO4) of
steel-T21 coated by simultaneous yttrium-doped
aluminizing-siliconizingprocess . Diffusion coating was carried
out at 1050oC for 6 hr under Aratmosphere . The weight change
measurements made on the coated steel during the cyclic tests
are used to determine kinetics of hot corrosion at temperature
range (800-1000oC) for 100 hr at 5 hrcycle .X-ray diffraction
and optical microscope are used to characterize the oxide phases
where the oxide phases that formed on coated system are SiO2 and
Al2O3 .The parabolic rate constants (Kp) calculated show that
the corrosion rate is minimum at 800oC compared to other
temperatures. The experimental results, the fuzzy logic model,
and the statistical results showed good correlations.The fuzzy
logicmodels are developed using Matlab toolbox functions. |
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