高性能织构Cu基合金复合基带立方织构形成的研究

发布时间：2018-04-16 09:26

本文选题：CuNi-NiW-CuNi复合基带 + RABi　；参考：《稀有金属材料与工程》2015年11期

【摘要】：采用放电等离子体烧结的方法制备了外层为Cu_(60)Ni_(40)合金,芯层为Ni_9W合金的Cu基复合坯锭,结合传统的RABiTS路线成功获得了无铁磁性、高强度、强立方织构的Cu_(60)Ni_(40)-Ni_9W-Cu_(60)Ni_(40)复合基带。利用EBSD技术对复合基带轧制织构及再结晶退火后的微取向特征进行了分析表征。测试结果表明:大变形量冷轧后复合基带表面形成了典型的铜型轧制织构,在截面方向上织构呈现梯度分布的特征,在再结晶退火后该复合基带表面立方织构含量达到了97.6%(10°),并发现,在再结晶过程中立方织构优先在外层材料中形核、长大,并逐渐吞并周围的非立方晶粒。对其力学性能表征发现:该复合基带在室温下的屈服强度为170 MPa,达到了商业化Ni_5W合金基带的水平。
[Abstract]:Preparation of the outer layer is Cu_ by spark plasma sintering process (60) Ni_ (40) alloy, Cu composite billet core layer of Ni_9W alloy, combined with the traditional RABiTS route successfully obtained no ferromagnetism, high strength, strong cubic texture of Cu_ (60) Ni_ (40) -Ni_9W-Cu_ (60) Ni_ (40) of the composite baseband composite baseband. The rolling texture and recrystallization annealing after the micro orientation features were characterized by using EBSD technology. The test results show that the large deformation of cold rolled composite substrate is formed on the surface of copper type rolling texture typical, in the section of texture presents gradient distribution characteristics during recrystallization annealing after the content of composite substrate surface of cubic texture reached 97.6% (10 degrees), and found that growth during recrystallization cube texture in the outer layer material in preferred nucleation, non cubic crystal around and gradually annexed. The mechanical properties of the composite were discovered: baseband The yield strength at room temperature is 170 MPa, which reaches the level of the commercialized Ni_5W alloy base band.

【作者单位】：河南师范大学;
【基金】：国家自然科学基金(U1204111,11304084,U1304109) 国家博士后科研基金(2013M531677) 河南省教育厅科学技术重点研究项目(14A140010) 河南师范大学科研启动专项(01026500256)
【分类号】：TG146.11

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