Duplex Precipitates and Their Effects on the Room-temperature Fracture Behaviour of a NiAl-Strengthened Ferritic Alloy

Zhiqian Sun; Gian Song; Jan Ilavsky; Peter K. Liaw

doi:10.1080/21663831.2015.1021492

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Duplex Precipitates and Their Effects on the Room-temperature Fracture Behaviour of a NiAl-Strengthened Ferritic Alloy

Report | 更新时间：2026-08-19

- Duplex Precipitates and Their Effects on the Room-temperature Fracture Behaviour of a NiAl-Strengthened Ferritic Alloy
- Materials Research Letters Vol. 3, Issue 3, Pages: 128-134(2015)
- 作者机构：
  
  1. Department of Materials Science and Engineering The University of Tennessee Middle Drive Knoxville,1508
  2. ray Science Division Advanced Photon Source Argonne National Laboratory Lemont,X
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2015.1021492
  CLC：
- Online First：23 March 2015，
  
  Published：2015
- 稿件说明：
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Zhiqian Sun, Gian Song, Jan Ilavsky, et al. Duplex Precipitates and Their Effects on the Room-temperature Fracture Behaviour of a NiAl-Strengthened Ferritic Alloy[J]. Materials Research Letters, 2015, 3(3): 128-134.
DOI：

Zhiqian Sun, Gian Song, Jan Ilavsky, et al. Duplex Precipitates and Their Effects on the Room-temperature Fracture Behaviour of a NiAl-Strengthened Ferritic Alloy[J]. Materials Research Letters, 2015, 3(3): 128-134. DOI： 10.1080/21663831.2015.1021492.

摘要

Abstract

Duplex precipitates are presented in a NiAl-strengthened ferritic alloy. They were characterized by the ultra-small angle X-ray scattering and transmission electron microscope. Fine cooling precipitates with the size of several to tens of nanometres harden the matrix considerably at room temperature. Cracks are likely to initiate from precipitates

and coalesce and propagate quickly through the matrix due to the excessive hardening effect of cooling precipitates

which lead to the premature fracture of NiAl-strengthened ferritic alloys.

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