Layer Stability and Material Properties of Friction-Stir Welded Cu–Nb Nanolamellar Composite Plates

Josef Cobb; Shraddha Vachhani; Robert M. Dickerson; Patricia O. Dickerson; Weizhong Han; Nathan A. Mara; John S. Carpenter; Judy Schneider

doi:10.1080/21663831.2014.918567

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Layer Stability and Material Properties of Friction-Stir Welded Cu–Nb Nanolamellar Composite Plates

Original Reports | 更新时间：2026-08-19

- Layer Stability and Material Properties of Friction-Stir Welded Cu–Nb Nanolamellar Composite Plates
- Materials Research Letters Vol. 2, Issue 4, Pages: 227-232(2014)
- 作者机构：
  
  1. Mechanical Engineering Department Mississippi State University Starkville
  2. Mechanical Engineering Department Georgia Institute of Technology Atlanta
  3. Materials Science and Technology Division Los Alamos National Laboratory Los Alamos
  4. Center for Advancing Materials Performance from the Nanoscale State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an People's Republic of China,710049
  5. Materials Science and Technology Division Los Alamos National Laboratory Los Alamos 45 USA,NM875
  6. Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2014.918567
  CLC：
- Online First：22 May 2014，
  
  Published：2014
- 稿件说明：
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Josef Cobb, Shraddha Vachhani, Robert M. Dickerson, et al. Layer Stability and Material Properties of Friction-Stir Welded Cu–Nb Nanolamellar Composite Plates[J]. Materials Research Letters, 2014, 2(4): 227-232.
DOI：

Josef Cobb, Shraddha Vachhani, Robert M. Dickerson, et al. Layer Stability and Material Properties of Friction-Stir Welded Cu–Nb Nanolamellar Composite Plates[J]. Materials Research Letters, 2014, 2(4): 227-232. DOI： 10.1080/21663831.2014.918567.

摘要

Initial efforts to friction-stir weld (FSW) Cu–Nb nanolamellar composite plates fabricated via accumulative roll bonding are reported in this study. Parent material layers within the composite were nominally 300 nm and exhibited a hardness of 2.5 GPa. After FSW

two types of microstructures were present: a refined layered structure

and an equiaxed nanocrystalline microstructure with grain diameters on the order of 7 nm. The type of microstructure was dependent on location within the FSW nugget and related to varying amounts of strain. Material hardness increased with refinement

with the equiaxed microstructure reaching a maximum hardness of 6.0 GPa.

Abstract

two types of microstructures were present: a refined layered structure

with the equiaxed microstructure reaching a maximum hardness of 6.0 GPa.

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