Orientation-dependent hardness of Mo3Si studied by cube-corner nanoindentation

被引：0

作者：

Yang, Weiguang ^{[1
]}

Hasemann, Georg ^{[2
]}

Schwaiger, Ruth ^{[1
,3
]}

Krueger, Manja ^{[2
]}

机构：

[1] Forschungszentrum Julich, Inst Energy & Climate Res Struct & Funct Mat IEK 2, Leo Brandt Str 1, D-52425 Julich, Germany

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

[3] Rhein Westfal TH Aachen, Fac 5, Chair Energy Engn Mat, D-52056 Aachen, Germany

来源：

JOURNAL OF MATERIALS SCIENCE | 2024年 / 59卷 / 01期

关键词：

SI-B ALLOYS; MECHANICAL-PROPERTIES; SCREW DISLOCATIONS; ELASTIC-MODULUS; MO; CREEP; MICROSTRUCTURE; DEFORMATION; INDENTATION; CRYSTALLINE;

D O I：

10.1007/s10853-023-09178-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mo3Si crystals having crystallographic out-of-plane orientations close to (001), (011) and (123) were studied by nanoindentation to better understand the hardness anisotropy. The Mo3Si precipitates were grown in a Mo-17.5Si-6B alloy and identified by electron backscatter diffraction. Pronounced material pile-up around the indents was observed, which causes inaccuracies in the projected contact area determined using the Oliver-Pharr method of around 30% compared to the real one. Based on the analysis of scanning electron micrographs, the projected contact areas and thus the hardness values were determined. To rationalize the observed pronounced orientation dependence of the hardness of Mo3Si, we suggest an easy-slip-cutting model accounting for the available slip systems as well as the upward flow of material along the surface of the cube-corner indenter tip.

引用

页码：277 / 288

页数：12

共 7 条

[1] Orientation-dependent hardness of Mo3Si studied by cube-corner nanoindentation
Weiguang Yang
Georg Hasemann
Ruth Schwaiger
Manja Krüger
[J]. Journal of Materials Science, 2024, 59 : 277 - 288
[2] Orientation-dependent hardness and nanoindentation-induced deformation mechanisms of WC crystals
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[3] Discrepancies in Nanoindentation Hardness and Modulus with a Berkovich, a Cube-corner, and a Conical Tip in a Cu(In,Ga)Se2 Light-Absorption Layer
Kang, Yeojin
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[J]. KOREAN JOURNAL OF METALS AND MATERIALS, 2022, 60 (12): : 884 - 891
[4] Effect of Crystalographic Orientation on the Corrosion Behavior of Mo3Si Single Crystals in NaCl Solution
Lopez-Sesenes, R.
Rosales, I
Uruchurtu-Chavarin, I
Salinas-Bravo, V. M.
Gonzalez-Rodriguez, J. G.
[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2018, 13 (05): : 4827 - 4840
[5] Orientation-dependent irradiation hardening in pure Zr studied by nanoindentation, electron microscopies, and crystal plasticity finite element modeling
Wang, Qiang
Cochrane, Christopher
Skippon, Travis
Wang, Zhouyao
Abdolvand, Hamidreza
Daymond, Mark R.
[J]. INTERNATIONAL JOURNAL OF PLASTICITY, 2020, 124 : 133 - 154
[6] Orientation-dependent electro-optical response of BaTiO3 on SrTiO3-buffered Si(001) studied via spectroscopic ellipsometry
Hsu, Min-Hsiang Mark
Marinelli, Antonio
Merckling, Clement
Pantouvaki, Marianna
Van Campenhout, Joris
Absil, Philippe
Van Thourhout, Dries
[J]. OPTICAL MATERIALS EXPRESS, 2017, 7 (06): : 2030 - 2039
[7] Effect of crystal orientation on the corrosion behavior of Mo3Si single crystals in 0.5 M H2SO4
Lopez-Sesenes, R.
Rosales, I.
Gonzalez-Rodriguez, J. G.
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2018, 88 : 71 - 74

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