W含量对Ni-W合金基带取向及织构形成的影响  

Influences of Different Tungsten Contents on Orientation and Texture Formation in Ni-W Alloy Substrates

作　　者：马麟[1] 索红莉[1] 喻丹[1] 刘婧[1] 彭发学 梁雅儒[1] 王盼[1] 田辉[1] 

机构地区：[1]北京工业大学,北京100124

出　　处：《稀有金属材料与工程》2017年第11期3332-3337,共6页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51571002);高等学校博士学科点专项科研基金(20121103110012);2013年度北京市自然科学基金重点项目B类资助(KZ201310005003);211计划专项资金资助

摘　　要：采用压延辅助双轴织构基板制备路线,结合X射线衍射和电子背散射衍射技术,系统研究了W量(原子分数)分别为5%、7%和9.3%的Ni-W合金基带在冷轧形变和再结晶热处理过程中的取向及织构形成的变化规律。研究发现,在冷轧形变过程中,随着W含量的增加,Ni-W合金基带中S和Copper取向含量的增量逐渐降低,而Brass取向含量的增量则呈现上升趋势,最终低W合金获得Copper型轧制织构,而高W合金获得Brass型轧制织构。在再结晶热处理过程中,低W合金立方晶粒形核较早并迅速长大,吞并其它取向,容易获得立方织构;高W合金的立方取向晶粒则和其它取向晶粒一同形核和长大,且长大速度不及其它取向晶粒,最后形成杂乱取向。Through rolling assisted biaxially textured substrate route, X-ray diffraction and electron backscatter diffraction technique were used to research the laws of orientation and texture formation in Ni-W alloy substrates with 5, 7 and 9.3（at%） of W contents during cold rolling deformation and recrystallizing heat-treatment processes. Results show that during cold rolling deformation process, the increments of S and Copper orientation fractions present a downward trend, while that in Brass orientation fraction shows a rising trend with the increase of W content. Therefore, the alloy substrates with lower and higher W contents gain Copper and Brass types rolling texture, respectively. During recrystallization heat-treatment process, the cube nuclei in lower W content alloy substrates initiate early and grow quickly, and then it obtains cube texture easily by annexing other orientations. However, cube-oriented grains nucleate and grow together with other orientation grains in higher W content alloy substrates. It obtains random orientations finally because the growth rate of cube grains is slower than others.

关 键 词：Ni-W合金基带 涂层导体 取向 织构 

分 类 号：TG146.15[一般工业技术—材料科学与工程]