为改善NiTi形状记忆合金表面的生物相容性,采用辉光离子氮化的方法在其表面制备了氮化层,利用多种手段对其表面氮化层的显微组织结构以及表面性能进行了研究.结果表明:经过900℃辉光离子氮化后,不仅在NiTi形状记忆合金表面形成了致密、均匀的TiN层,而且在基体与TiN层之间还形成了均匀的Ti2Ni过渡层,且随着氮化时间的延长,膜层及过渡层的厚度都随之增加.生成的氮化层大大提高了NiTi形状记忆合金的耐腐蚀性能.
参考文献
| [1] | Takaurra K;Hayashi K;Ishinishi N et al.The surface modi-tication of NiTi shape memory allooy[J].Jbi omed Mter Re,1994,28:583-586. |
| [2] | Ryhanen J;Niemi E;serlo W.Biocompatibility of nick-el-titanium shape memory metal and its corrosion behavior in human cell cultures[J].Bonedeal Materials Research,1997(35):451-457. |
| [3] | 黄楠;杨萍;曾晓兰 等.离子束合成Ti-O薄膜对热解碳生物材料表面改性的研究[J].中国生物医学工程学报,1997,16(03):199-205. |
| [4] | Shieu F S;Cheng L H;Sung Y C.Microstructure.chemistry and coating properties of ion-plated TiN on 304 stainless steel[J].Materials Chemistry and Physics,1997(50):248-255. |
| [5] | Hu J C;Chang T C;Chen L J.Charaeteriation of Multi-layered Ti/TiN films grown by chemical vapor deposition[J].Thin Solid Films,1998(332):423-427. |
| [6] | Cui ZD.;Man HC.;Yang XJ. .Characterization of the laser gas nitrided surface of NiTi shape memory alloy[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2003(0):388-393. |
| [7] | 王坤;张启礼 .镍钛合金的表面改性和其生物相溶性[J].华南理工大学学报(自然科学版),2004,11(06):122-125. |
| [8] | Xue L;Islam M;Koul A K et al.The bioeompatibility of Ni-Ti shape memory alloy[J].Wallace Adv Perform Mater,1997,25(04):542-545. |
| [9] | Starosvetsky D;Gotman I.TiN coating improves the corro-sion behavior of superelastic NiTi surgical alloy[J].Surface and Coatings Technology,2001(148):268-276. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%