FORMATION OF NANOCRYSTALLINE SURFACE FOR 304 AND CK15 CARBON STEEL AND TS EFFECT ON CORROSION AND WEARCORROSION RESISTANCE
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
UFGNSM03_260
تاریخ نمایه سازی: 10 تیر 1396
Abstract:
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.
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Authors
S. AMIRTVALA
Graduate student from Metallurgy dept, Science and Research Branch, Islamic Azad University, Tehran, Iran
C. DEHGHANLAN
Professor, Material Science and engineering School, University of Tehran,Tehran, Iran