首页|Thermally stable and corrosion resistant nanolaminated Al-Mn alloy with low angle boundary structures

Thermally stable and corrosion resistant nanolaminated Al-Mn alloy with low angle boundary structures

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  • NSTL
  • Elsevier
? 2022 Elsevier B.V.Metals with nanometer-sized grains are strong but often suffer from poor thermal stability. Herein, nanolaminated (NL) structure with an average thickness of 110 nm and a low angle grain boundaries (LAGBs) fraction of 80% was obtained in an Al-1Mn (in wt%) alloy produced by high strain rate deformation at cryogenic temperature. The NL structures are thermally stable up to 523 K, which can effectively suppress GB precipitation during aging, thus improving the pitting corrosion resistance in 0.6 M NaCl solution. The high thermal stability of NL structures can be mainly attributed to the formation of a large fraction (80%) of LAGBs.

Al-Mn alloyCorrosionLow angle grain boundaryNanolaminated structureThermal stability

Xin Y.C.、Xu W.、Li X.Y.、Zhang B.

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Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

2022

10.1016/j.jallcom.2022.165016

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.911
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