Surface engineering of biomedical metallic materialsby plasma-based low-energy ion implantation

• Published in: Current applied physics pp. 522 - 525
• Main Authors: X.M. Zhu, M.K. Lei
• Format: Journal Article
• Language: Korean
• Published: 한국물리학회 01.07.2005
• Subjects: 물리학
• ISSN: 1567-1739; 1878-1675

Plasma-based low-energy ion implantation, including plasma source ion nitriding/carburizing and plasma source low-energy ionenhanced deposition of thin lms, for surface engineering of metallic materials was emerged as low-temperature, low-pressure sur-face modication technique. Plasma source ion nitriding onto AISI 316L austenitic stainless steel produced a high nitrogen face-centered-cubic phase (cN) layer about 10l m thick at the temperature of 380.C during 4 h with the high microhardness ofHK 0.1 N 22.0 GPa. The microhardness of the nitrided surface from the titanium nitride phase [(Ti,Al,V)N] layer on Ti6Al4V alloyat 750.C during 4 h achieved up to about HK 0.1 N15.5 GPa. No pitting corrosion in the Ringer.s solution at 37.C was detected byelectrochemical polarization measurement for the nitrided AISI 316L stainless steel and Ti6Al4V alloy, respectively. Plasma sourceion nitriding of the metallic materials provided the engineering surfaces with combined improvement in hardness and corrosionresistance.. KCI Citation Count: 12