Vacancy effects on the mechanical behavior of B2-FeAl intermetallics

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:712

Article

Zamanzade, M.¹  Hasemann, G.²  Motz, C.¹  Krueger, M.²  Barnoush, A.^1,3 

[1] Saarland Univ, Dept Mat Sci, Bldg D22, D-66041 Saarbrucken, Germany

[2] Otto von Guericke Univ, Inst Mat & Joining Technol, Univ Pl 2, D-39106 Magdeburg, Germany

[3] Norwegian Univ Sci & Technol, Dept Engn Design & Mat, NO-7491 Trondheim, Norway

关键词: Hardness;    Micromechanics;    Stress/strain measurements;    Intermetallics;    Iron alloys;    Plasticity;   

DOI  :  10.1016/j.msea.2017.11.054

来源: Elsevier

【 摘 要 】

The present work addresses the impact of quenched-in thermal vacancies on the mechanical properties of B2 iron aluminides. For this reason different binary Fe-Al alloys with different histories of heat treatment were indented at room temperature. The,contributions of mono- and bi-vacancies in addition to triple defects on the elastic, plastic and elastic-plastic transition were evaluated using nanoindentation technique. In the samples containing bi-vacancies, the increase of the hardness was much more pronounced compared to the mono-vacancies.

【 授权许可】

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