Fretting wear behavior of nitrogen implanted Zircaloy-4 alloy

来源期刊：中国有色金属学报(英文版)2000年第2期

论文作者：唐国翌 Jeon G.Han Byung H.Choi W. Kim

文章页码：167 - 171

Key words：Zircaloy-4; fretting wear; surface hardness; nitrogen implantation

Abstract: Zircaloy-4 was implanted with nitrogen at 120keV with various ion doses between 1×10¹³ and 1×10¹⁴ ions/m² . Fretting wear tests were performed at various cycles and loads under water immersion condition by the fretting simulator, The implanted surfaces were analyzed by Auger electron spectroscopy (AES) and transmission electron microscope (TEM). Micro-hardness tester measured surface hardness. It is shown that nitrogen implantation produced Zirconium nitride oxide and high density dislocations in implanted layer, surface hardness was enhanced from HK280 for unimplanted specimen to HK1800 for a total ion dose of 1×10¹⁴ ions/m² . The nitrogen ion implantation treatment provided significant improvements in the resistance of fretting damage.