采用高能喷丸对工业纯铁棒材端面进行了表面自纳米化处理,在处理表面以下一定厚度内形成了纳米晶组织.采用自纳米化纯铁和未自纳米化纯铁端面对接中间夹Ni箔的方法,利用脉冲加压的方式在850℃实现了Ni向纯铁的扩散,用能谱仪(EDS)测试出扩散界面两侧一定范围内Ni原子的扩散浓度,计算了Ni原子在两侧纯铁表面扩散层中的扩散系数.结果表明.工业纯铁经表面自纳米化处理后,在短时间内明显提高了Ni原子的扩散系数.
参考文献
| [1] | Lu J.Nano-materials and nano-technology[A].Baltimore,1994:126. |
| [2] | Liu G;Wang S C;Lou X F et al.Low carbon steel withnanostructured surface layer induced by high-energy shotpeening[J].Scripta Materialia,2001,44(08):1791. |
| [3] | 李东,陈怀宁,刘刚,卢柯,林泉洪.SS400钢对接接头表面纳米化及其对疲劳强度的影响[J].焊接学报,2002(02):18-21. |
| [4] | Ping WU,Jingyang WANG,Hongwang ZHANG,Xiaowei WANG.Internal Friction and Elastic Study on Surface Nanocrystallized 304 Stainless Steel Induced by High-energy Shot Peening[J].材料科学技术学报(英文版),2002(02):132-134. |
| [5] | Gleiter H .Nanocrystalline materials[J].Progress in Materials Science,1989,33(04):223. |
| [6] | Lu K .Nanocrystalline materials crystallized from amorphous solids:Nanocrystallization,structure,and properties[J].Materials Science and Engineering R:Reports,1996,16(04):1161. |
| [7] | 卢柯;吕坚 .一种形成纳米结构的机械方法和专用机设备[P].中国,01122980.2,2001-07-27. |
| [8] | Schumacher S;Birringer R;Strauss R et al.Diffusion of silver in nanocrystalline copper between 303 and 373 K[J].Acta Materialia,1989,37(09):2485. |
| [9] | Lu L;Sui M L;Lu K .Superplastic extensibility of nanocrystall in copper at room temperature[J].Science,2000,287(02):1463. |
| [10] | Tong W P;Tao N R;Wang Z B et al.Nitriding iron at lower temperatures[J].Science,2003,299(01):1686. |
| [11] | Wang Z B;Tao N R et al.Diffusion of chro-mium in nanocrystalline iron produced bymesns of surface mechanical attrition treatment[J].Acta Materialia,2003,51(08):4319. |
| [12] | Wang Z B;Lu J;Lu K .Chromizing behaviors of a low carbon steel processed by means of surface mechanical attrition treatment[J].Acta Materialia,2005,53(04):2081. |
| [13] | Tong W P;Tao N R;Wang Z B et al.Nitriding iron and 38CrMoAl steel with a nanostructrued surface layer[J].J Graduate School of the Chinese Academy of Science,2005,22(02):1230. |
| [14] | Zhang H W;Wang L;Hei Z K et al.Low-temperature plasma nitriding of AISI 304 stainless steel with nano-structured surface layer[J].Zeitschrift fur Metallkunde,2003,94(05):1143. |
| [15] | Duohui BEI,Jianfeng GU,Jiansheng Pan,Jian (LU),Ke LU.Gaseous Nitriding Process of Surface Nanocrystallized (SNCed) Steel[J].材料科学技术学报(英文版),2002(06):566-568. |
| [16] | 韩靖,盛光敏,胡国雄,秦斌.表面纳米化不锈钢与钛合金扩散连接中的扩散系数[J].焊接学报,2008(05):25-29. |
| [17] | Klug H P;Alexander L E.X-ray diffraction procedures for polycrystalline and amorphous materials[M].New York:wiley,1974:661. |
| [18] | Erich Folkhard;栗卓新;朱学军.不锈钢焊接冶金[M].北京:化学工业出版社,2004 |
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