| 脉冲加压镍原子在纳米晶铁中扩散行为研究 |
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| 引用本文： | 陈登明,孙建春,曹鹏军,盛光敏,王越田.脉冲加压镍原子在纳米晶铁中扩散行为研究[J].功能材料,2012,43(16):2264-2266. |
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| 作者姓名： | 陈登明 孙建春 曹鹏军 盛光敏 王越田 |
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| 作者单位： | 1. 重庆科技学院冶金与材料工程学院,重庆,401331
2. 重庆大学材料科学与工程学院,重庆,400044 |
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| 基金项目： | 基金项目:国家自然科学基金资助项目，重庆市自然科学基金重点资助项目 |
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| 摘 要： | 利用高能喷丸技术实现电工纯铁表面自纳米化,通过X射线衍射分析对表面变形层晶粒度进行表征;然后在Gleeble 1500型热模拟试验机上进行Ni的扩渗;利用扫描电子显微镜作能谱分析,对常规粗晶和纳米晶试样的扩散效果进行分析。结果表明,电工纯铁经喷丸处理,表面得到了纳米结构层;Ni在纳米晶中的扩散系数比同等条件下常规粗晶试样高1倍。
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| 关 键 词： | 电工纯铁 表面自纳米化 扩散 |
Ditffusion of nickel in nanocrystalline iron under a pulse pressure |
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| CHEN Deng-ming,SUN Jian-chun,CAO Peng-jun,SHENG Guang-min,WANG Yue-tian.Ditffusion of nickel in nanocrystalline iron under a pulse pressure[J].Journal of Functional Materials,2012,43(16):2264-2266. |
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| Authors: | CHEN Deng-ming SUN Jian-chun CAO Peng-jun SHENG Guang-min WANG Yue-tian |
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| Affiliation: | 1.College of Metallurgy and Materials Engineering,Chongqing University of Science and Technology, Chongqing 401331,China; 2.College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China) |
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| Abstract: | High-energy shot peening technology was used to make pure iron surface self nano-crystallization(SSNC),The grain size was characterized by X-ray diffraction analysis(XRD).And then Ni was diffused to iron on the Gleeble 1500 thermal simulation testing machine.the SEM was used for spectrum analysis to compare the proliferation effect of samples before and after SSNC.The results showed that the surface of pure iron was nano-structured after the shot peening treatment.Diffusivity of Ni under the same conditions on the surface of specimen was bigger at the shot peening side than the side without shot peening. |
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| Keywords: | pure iron surface self nano-crystallization diffusion |
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