Title :
Increase of fatigue strength of 12Cr1МoV steel by surface nanostructuting with Zr+ ion beam
Author :
Panin, S.V. ; Vlasov, I.V. ; Sergeev, V.P. ; Sungatulin, A.R. ; Poltaranin, M.A. ; Lyubutin, P.S. ; Panin, V.E.
Author_Institution :
Tomsk Polytech. Univ., Tomsk, Russia
Abstract :
A cyclic tension and alternating bending tests of 12Cr1MoV steel specimens in as-supplied state and after surface nanostructuring by Zr+ ion beam have been carried out. Distinctions in formation of strain induced relief, as well as the cracking pattern of modified surface layer are illustrated by methods of optical microscopy and interferential profilometry. Changes to occur in subsurface layer are characterized by means of nanoindentation and fractography observation of fracture surfaces. The description of differences of deformation behavior is performed with use of the multiple cracking concept.
Keywords :
alloy steel; bending; cracks; fatigue; ion beam effects; nanoindentation; nanostructured materials; nondestructive testing; surface structure; 12Cr1MoV steel; alternating bending tests; cracking pattern; cyclic tension; deformation; fatigue strength; fractography; interferential profilometry; ion beam; modified surface layer; nanoindentation; optical microscopy; strain induced relief; surface nanostructure; Fatigue; Optical imaging; Rough surfaces; Steel; Surface cracks; Surface roughness; Surface treatment; deformation; fracture; multiple cracking; nanostructuring; strength;
Conference_Titel :
Strategic Technology (IFOST), 2012 7th International Forum on
Conference_Location :
Tomsk
Print_ISBN :
978-1-4673-1772-6
DOI :
10.1109/IFOST.2012.6357591
