研究了Mn对(Fe64 Ni32 Co4)1-xMnx(x=0,2.2,4.4,6.6(％,质量分数))合金物相、热膨胀性能影响,利用穆斯堡尔谱分析了合金内场分布及Mn对合金热膨胀性能的影响机制.结果表明,Mn促使合金生成FCC单相,增大其热膨胀系数.Mn含量较低时,穆斯堡尔谱为连续的铁磁六线谱迭加而成,当Mn含量增加到6.6％后则由顺磁单峰和铁磁六线谱迭加组成,Mn元素添加降低了合金中高自旋Fe原子数量,进而减弱升温过程中高自旋Fe原子向低自旋原子引起的体积缩小作用,是导致合金热膨胀系数增加的主要原因.
参考文献
| [1] | 张楠,刘晓鹏,米菁,蒋利军,王树茂.可控氧化气氛下4J29合金的组织与性能研究[J].稀有金属,2012(05):716-720. |
| [2] | 杨红川,于敦波,李世鹏,胡权霞,闫文龙,李扩社.MnZn-FeNi复合烧结软磁材料的烧结过程和性能研究[J].稀有金属,2011(01):28-32. |
| [3] | W. Xiong;H. Zhang;L. Vitos .Magnetic phase diagram of the Fe-Ni system[J].Acta materialia,2011(2):521-530. |
| [4] | P. Gorria;D. Martinez BlancG;R. Iglesias .Magneto-volume effects in Fe-Cu solid solutions[J].Journal of Magnetism and Magnetic Materials,2006(1):229-233. |
| [5] | Ruban AV;Khmelevskyi S;Mohn P;Johansson B .Magnetic state, magnetovolume effects, and atomic order in Fe65Ni35 Invar alloy: A first principles study[J].Physical review, B. Condensed matter and materials physics,2007(1):4420-1-4420-9-0. |
| [6] | Low Nickel Content FCC Alloys: Recent Evolution and Applications[J].IEEE Transactions on Magnetics,2010(2):326. |
| [7] | Kong Y.;Kaack M.;Pelzl J.;Stauche P.;Bach H.;Li FS. .Mossbauer study of local electronic and magnetic properties of Pt-substituted Fe-Ni Invar[J].Journal of Physics. Condensed Matter,2000(9):2079-2091. |
| [8] | Liot F;Abrikosov IA .Local magnetovolume effects in Fe65Ni35 alloys[J].Physical review, B. Condensed matter and materials physics,2009(1):014202-1-014202-7-0. |
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%