制备具有高强度、低磁性的双轴织构金属基带是获得高性能涂层超导体的基础.目前,传统的Ni5at％W (Ni5W)合金基带已经可以工业化生产,但其立方织构的形成机理尚不明确.以真空熔炼方法制备的大形变量(约99％)冷轧Ni5W合金基带作为研究对象,采用EBSD技术进行表征,系统的研究了其形变织构的演变、再结晶形核和晶粒长大等过程.研究发现,Ni5W合金基带的形变织构为典型的铜型轧制织构；在再结晶初期阶段,立方取向晶粒优先在靠近基带表层的区域形核,且具有一定的尺寸优势,其形核在厚度方向上表现出梯度分布的特点；在完全再结晶阶段,立方取向的晶粒通过“尺寸优势”和“取向长大优势”逐渐吞并其它取向的晶粒,形成强的立方织构.
参考文献
| [1] | Malozemoff A P;Fleshier S;Rupich M et al.[J].Superconductor Science&Technology,2008,21:1. |
| [2] | Fleshier S;Buczek D et al.[J].Physica C,2009,469:1316. |
| [3] | Eickemeyer J;Selbmann D;Opitx R et al.[J].Superconductor Science and Technology,2001,4:152. |
| [4] | Sarma V S;Boer B D;Reger N et al.[J].Materials Science Forum,2002,408-412:1561. |
| [5] | Zhang Y B;Godfrey A;Liu Q et al.[J].Aeta Materialia,2009,57(09):2631. |
| [6] | Zhang Y B;Li X L;Godfrey A et al.[J].Materials Science and Engineering,2008,29:393. |
| [7] | Zhang Y B;Godfrey A;Miodownik M A et al.[J].Materials Science Forum,2007,558-559:1043. |
| [8] | Zhao Yue;Suo Hongli;Liu Min et al.[J].Acta Materialia,2007,55:2609. |
| [9] | Gao Mangmang;Suo Hongli;Zhao Yue et al.[J].Acta Materialia,2010,58:1299. |
| [10] | Gao Mangmang;Suo Hongli;Grivel J C et al.[J].IEEE Transactions on Applied Superconductivity,2011,21(03):2969. |
| [11] | Bhattacharjee P P;Ray R K;Tsuji N .[J].Acta Materialia,2009,57:2166. |
| [12] | Bhattacharjee P P;Ray R K;Tsuji N .[J].Physical Metallurgy and Materials Science,2010,41(11):2856. |
| [13] | Kim SS;Tak JS;Bae SY;Chung JK;Alin LS;Kim CJ;Kim KW;Cho KK .Development of cube textured Ni-5at.%W alloy substrates for YBCO coated conductor application using a powder metallurgy process[J].Physica, C. Superconductivity and its applications,2007(0):604-608. |
| [14] | 赵跃,索红莉,高忙忙,刘敏,马麟,王丽,周美玲.复合基带外层Ni5W再结晶织构演变的研究[J].稀有金属材料与工程,2011(10):1771-1774. |
| [15] | 杨平.电子背散射衍射技术及应用[M].北京:冶金工业出版社,2007:67. |
| [16] | Ray R K;Hutchinson W B;Duggan B J .[J].Acta Materialia,1975,23:831. |
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