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author:

温建程 (温建程.) [1] | 戴品强 (戴品强.) [2]

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CQVIP PKU CSCD

Abstract:

采用脉冲电沉积方法,通过改变Fe含量获得不同层错能的纳米晶Ni-Fe合金。采用X射线衍射(XRD)、透射电镜(TEM)与拉伸试验研究纳米晶Ni-Fe合金的显微组织和力学性能。结果表明:制备的Ni-Fe合金均为面心立方结构的单相固溶体,平均晶粒尺寸为12~25 nm,且平均晶粒尺寸随层错能的减小而减小。纳米晶Ni-Fe合金抗拉强度为1361~1978 MPa,断裂伸长率为9.3%~13.2%,纳米晶Ni-Fe合金的抗拉强度和断裂伸长率均随层错能的减小而增加。合金抗拉强度的增加是细晶强化作用的结果。随着Ni-Fe合金层错能的降低,加工硬化率提高,塑性失稳被推迟,从而获得较高的塑性。

Keyword:

Ni-Fe合金 力学性能 层错能 纳米晶

Community:

  • [ 1 ] [温建程]福州大学
  • [ 2 ] [戴品强]福州大学

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Source :

中国有色金属学报

ISSN: 1004-0609

CN: 43-1238/TG

Year: 2015

Issue: 4

Page: 938-944

Cited Count:

WoS CC Cited Count: 6

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 4

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