Coherent precipitation and stability of cuboidal B2 nanoparticles in a ferritic Fe–Cr–Ni–Al superalloy

Zhenhua Wang; Qing Wang; Ben Niu; Chuang Dong; Hongwei Zhang; Haifeng Zhang; Peter K. Liaw

doi:10.1080/21663831.2021.1973130

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Coherent precipitation and stability of cuboidal B2 nanoparticles in a ferritic Fe–Cr–Ni–Al superalloy

Original Report | 更新时间：2026-08-19

- Coherent precipitation and stability of cuboidal B2 nanoparticles in a ferritic Fe–Cr–Ni–Al superalloy
- Materials Research Letters Vol. 9, Issue 11, Pages: 458-466(2021)
- 作者机构：
  
  1. a Key Laboratory of Materials Modification by Laser Ion and Electron Beams (Ministry of Education) Engineering Research Center of High Entropy Alloy Materials (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology
  2. b Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences
  3. c Department of Materials Science and Engineering The University of Tennessee Knoxville
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2021.1973130
  CLC：
- Online First：09 September 2021，
  
  Published：2021
- 稿件说明：
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Zhenhua Wang, Qing Wang, Ben Niu, et al. Coherent precipitation and stability of cuboidal B2 nanoparticles in a ferritic Fe–Cr–Ni–Al superalloy[J]. Materials Research Letters, 2021, 9(11): 458-466.
DOI：

Zhenhua Wang, Qing Wang, Ben Niu, et al. Coherent precipitation and stability of cuboidal B2 nanoparticles in a ferritic Fe–Cr–Ni–Al superalloy[J]. Materials Research Letters, 2021, 9(11): 458-466. DOI： 10.1080/21663831.2021.1973130.

摘要

Abstract

The present work developed a new Fe-based superalloy of Fe–10.9Cr–13.9Ni–6.4Al–2.2Mo–0.5W–0.04Zr–0.005B (weight percent

wt. %) with cuboidal B2 nanoparticles coherently precipitated into the body-centred-cubic (BCC) matrix. This alloy possesses excellent microstructural stability at 973 K with a slow particle coarsening rate and the B2 nanoprecipitates still keep cuboidal after 1000 h-aging

which is ascribed to the moderate lattice misfit (

= 0.24–0.67%) between BCC and B2 phases. Also

the current alloy exhibits a prominent mechanical property with a high yield strength of

= 238–258 MPa at 973 K.

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Related Institution

a Materials Science and Engineering Program University of California San Diego La Jolla

b Department of NanoEngineering University of California San Diego La Jolla

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b Institute of High Pressure Physics Polish Academy of Sciences

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