کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1648238 1007553 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of surface nanocrystallization on the tribological properties of 1Cr18Ni9Ti stainless steel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Effect of surface nanocrystallization on the tribological properties of 1Cr18Ni9Ti stainless steel
چکیده انگلیسی

Surface nanocrystallization of 1Cr18Ni9Ti austenite stainless steel was conducted by the supersonic fine particles bombarding (SFPB) technique. The friction coefficients and wear losses in air and vacuum were tested to analyse the effect of surface nanocrystallization on the tribological properties of 1Cr18Ni9Ti steel. The results show that the microstructure of the surface layer was refined into nano-grains successfully by SFPB treatment; furthermore, strain-induced martensitic transformation occurred during the treatment. The tribological properties of SFPB treated samples enhanced greatly, The dominant wear mechanism of the original 1Cr18Ni9Ti stainless steel is abrasive wear and adhesive wear, while it transfers to the combined action of fatigue wear, abrasive wear and adhesive wear after surface nanocrystallization by SFPB.

Research Highlights
► A nanocrystalline surface layer was fabricated on the 1Cr18Ni9Ti stainless steel by the supersonic fine particles bombarding (SFPB) technology.
► The SFPB treatment induced grain refinement and martensitic phase transformation in the top surface layer.
► The increase of hardness and surface activity of stainless steel after SFPB treatment can enhance its tribological properties notably.
► The dominant wear mechanism of the original 1Cr18Ni9Ti steel are abrasive wear and adhesive wear, while it transfers to the combined action of fatigue wear, abrasive wear and adhesive wear after surface nanocrystallization by SFPB.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 65, Issue 9, 15 May 2011, Pages 1268–1271
نویسندگان
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