Ni-30Al-8Mo-2Nb合金由NiAl、Mo和少量的Ni3Al相组成树枝晶.Ni-40Al-8Mo-2Nb合金由NiAl和Mo两相组成树枝晶.Ni-50Al-8Mo-2Nb合金由NiAl、Mo和少量NiAlNb(Laves)相组成不规则的树枝晶.在3种合金中,NiAlNb(Laves)相只存在于富Al的合金中.Ni-40Al-8Mo-2Nb合金的压缩屈服强度高于Ni-30Al-8Mo-2Nb合金的压缩屈服强度,而且在低温或高应变速率时强度差异更大.Ni-30Al-8Mo-2Nb和Ni-40Al-8Mo-2Nb合金的峰值应力的变化规律与压缩屈服强度的变化规律一致.透射电镜观察表明,Ni-40Al-8Mo-2Nb合金的高温变形行为受动态回复和动态再结晶所控制.
参考文献
| [1] | Walter J L;Cline H E .[J].Metallurgical and Materials Transactions,1970,1:1221-1229. |
| [2] | Cline HE;Walter J L;LifshinE.[J].Metallurgical and Materials Transactions,1971(02):189-194. |
| [3] | Webber J G;Van Aken DC .[J].Scripta Metallurgica et Materialia,1989,23:193-196. |
| [4] | HerediaFE;He M Y;Lucas G E .[J].Acta Materialia,1993,41:505-511. |
| [5] | Joslin SM.;Oliver BF.;Noebe RD.;Chen XF. .FRACTURE BEHAVIOR OF DIRECTIONALLY SOLIDIFIED NIAL-MO AND NIAL-V EUTECTICS[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1995(1/2):9-18. |
| [6] | Misra A;WuZL;Kush MT et al.[J].Philosophical Magazine,1998,78A:533-550. |
| [7] | Raynolds J E;Roddick E R;Smith J R et al.[J].冶金材料学报,1999,47:3281-3289. |
| [8] | Johnson D R;Oliver B F;Noebe R D .[J].Intermetallics,1995,3:493-503. |
| [9] | Whittenberger J D;Noebe R D;Joslin S M et al.[J].INTERMETALLICS,1999,7:627-633. |
| [10] | 卡恩RW;哈森P;克雷默E J;丁道云.材料科学与技术丛书[M].,1998 |
| [11] | 齐义辉 .[D].沈阳:中国科学院金属研究所,2002. |
| [12] | NoebeRD;Cullers C L;BowmanRR.[J].Journal of Materials Research,1992(07):605-612. |
| [13] | Whittenberger J D .[J].Journal of Materials Science,1987,22:401. |
| [14] | JohnsonDR;ChenXF;OliverBF B F .[J].Intermetallics,1995,3:99-113. |
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