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W含量对Ni-W合金基带取向及织构形成的影响
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北京工业大学 材料科学与工程学院,北京工业大学 材料科学与工程学院,北京工业大学 材料科学与工程学院,北京工业大学 材料科学与工程学院,北京工业大学 材料科学与工程学院,北京工业大学 材料科学与工程学院,北京工业大学 材料科学与工程学院,北京工业大学 材料科学与工程学院

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TG146

基金项目:

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


Influences on Orientation and Texture Formation in Ni-W Alloy Substrates with Different Tungsten Contents
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College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology,College of Materials Science and Engineering,Beijing University of Technology

Fund Project:

National Natural Science Foundation of China (51571002), Doctoral Program of Higher Education of Special Research Fund (20121103110012), Beijing Municipal Natural Science Foundation B Type (KZ201310005003), 211 Program of Beijing City and Beijing University of Technology

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    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摩尔含量分别为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。

    Abstract:

    Through rolling assisted biaxially textured substrate route, X-ray diffraction and electron backscatter diffraction technique were used to research systematically the laws of orientation and texture formation in Ni-W alloy substrates with 5at.%, 7at.% and 9.3at.% of W contents during cold rolling deformation and recrystallizing heat-treatment processes. It finds 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 will gain Copper and Brass types rolling texture, respectively. During recrystallizion heat-treatment process, the cube nuclei in lower W content alloy substrates will initiate early and grow quickly, and then it will obtain cube texture easily by annexing other orientations. However, cube-oriented grains will nucleate and grow together with other orientation grains in higher W content alloy substrates. It will obtain random orientations finally because the growth rate of cube grains is slower than others.

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马麟,索红莉,喻丹,刘婧,彭发学,梁雅儒,王盼,田辉. W含量对Ni-W合金基带取向及织构形成的影响[J].稀有金属材料与工程,2017,46(11):3332~3337.[Ma Lin, Suo Hongli, Yu Dan, Liu Jing, Peng Faxue, Liang Yaru, Wang Pan, Tian Hui. Influences on Orientation and Texture Formation in Ni-W Alloy Substrates with Different Tungsten Contents[J]. Rare Metal Materials and Engineering,2017,46(11):3332~3337.]
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  • 收稿日期:2016-10-26
  • 最后修改日期:2017-02-14
  • 录用日期:2017-03-16
  • 在线发布日期: 2017-12-13
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