摘要
在350℃研究了N^+剂量(3.0×10^(17)~12.0×10^(17) ions/cm^2)对304不锈钢离子注N的影响。利用扫描电镜、维氏显微硬度、X射线衍射仪和万能摩擦试验机对N^+注入层的硬度、相结构和耐磨性进行分析,并对微观机理进行分析。结果表明:经过不同N^+剂量后,钢表面生成了γN相,其表面光洁度、硬度和耐磨性均有所提高。在相同工艺条件下,注N^+剂量为9.0×10^(17) icons/cm^2时,304不锈钢的硬度可达369 HV0.025,与基材相比提高了61%,耐磨性相比基体也显著提升。
The influences of N icons （3.0× 10^17-12.0× 10^17 icons/cm：） content on ion implantation N on 304 stainless steel at 350 ℃ were studied. The hardness, phase structure and wear resistance of N-icon implanted layers were characterized by SEM, microhardness test, XRD, and fi-iction-abrasion testing machine. The microscopic mechanism was analyzed. The results show that γN phase appears on the surface of steel after different N＋ implanted dosages, then, the surface finishment, surface microhardness and wear resistance of 304 stainless steel improve. When N＋ implanted dosage is 9,0×10^17 icons/cm2, compared with non-implanted substrate, the surface hardness of N＋ implanted 304 stainless steel samples improves by 61% to 369 HV0. 025 under the same implantation process. Meanwhile, the wear resistance improves obviously compared with matrix.
出处
《热加工工艺》
CSCD
北大核心
2017年第8期162-166,共5页
Hot Working Technology
基金
湖南省科技重大专项(2012FJ1007)
中国博士后面上基金(2013M542123)
高等学校博士学科点专项科研基金(20134324110001)
湖南省自然科学省市联合基金(S2015J512J)
关键词
离子注入
304不锈钢
N+剂量
耐磨性
ion implantation
304 stainless steel
N＋ dose
wear resistance
