FORMATION OF NANOCRYSTALLINE SURFACE FOR 304 AND CK15 CARBON STEEL AND TS EFFECT ON CORROSION AND WEARCORROSION RESISTANCE
- سال انتشار: 1390
- محل انتشار: سومین کنفرانس بین المللی مواد فوق ریزدانه و نانوساختار
- کد COI اختصاصی: UFGNSM03_260
- زبان مقاله: انگلیسی
- تعداد مشاهده: 322
نویسندگان
Graduate student from Metallurgy dept, Science and Research Branch, Islamic Azad University, Tehran, Iran
Professor, Material Science and engineering School, University of Tehran,Tehran, Iran
چکیده
In this study, two essential goals were followed: 1) formation of nano-crystallization of surface by shotpeening, 2) Evaluation of wear corrosion characteristics in solution with pH =2. These works were done on 304 stainless steel and ck15 low carbon steel. Nano-crystallization layer surface on steels were formed by severe plastic deformation don by shot peening. Formation of nano-crystallization was checked by XRD. The layer produced on steel surface had a significant hardness containing residual compressive strength which not only improved fatigue life by 20% but also increased the wear corrosion resistance of the samples. The evaluation of wear corrosion was conducted in several pH and 1% NaCl solutions with two different load pressures, the trend of wear corrosion was examined by weight loss and DC polarization tests.کلیدواژه ها
wear corrosion, corrosion, polarization, weight loss, nano-crystallizationمقالات مرتبط جدید
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