Mechanical size effects in a single crystalline equiatomic FeCrCoMnNi high entropy alloy

被引：44

作者：

Raghavan, R. ^{[1
]}

Kirchlechner, C. ^{[1
,2
]}

Jaya, B. N. ^{[1
]}

Feuerbacher, M. ^{[3
,4
]}

Dehm, G. ^{[1
]}

机构：

[1] Max Planck Inst Eisenforsch GmbH, Struct & Nano Micromech Mat, Max Planck Str 1, D-40237 Dusseldorf, Germany

[2] Univ Leoben, Dept Mat Phys, Jahnstr 12, A-8700 Leoben, Austria

[3] Forschungszentrum Julich GmbH, Peter Grunberg Inst, D-52425 Julich, Germany

[4] Forschungszentrum Julich GmbH, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany

来源：

SCRIPTA MATERIALIA | 2017年 / 129卷

关键词：

Size dependence; Yield strength; Plastic deformation; Slip; Compression; PHASE-STABILITY; PLASTICITY; STRENGTH; DEFORMATION; SCALE; MICROSTRUCTURE; NUCLEATION; DEPENDENCE; BEHAVIOR; TENSILE;

D O I：

10.1016/j.scriptamat.2016.10.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The size dependence of the mechanical behavior of a single crystalline equiatomic FeCrCoMnNi single phase high entropy alloy was studied using in situ SEM microcompression. Electron back-scattered diffraction was used in conjunction with high-resolution scanning electron microscopy to identify the dominant slip system activated for accommodating plastic flow. The scaling of the yield strength with the size of the micropillar is discussed in comparison with the size dependence observed in face-centered and body-centered cubic single crystalline metals. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：52 / 55

页数：4

共 45 条

[1] Temperature-dependent size effects on the strength of Ta and W micropillars
Abad, Oscar Torrents
Wheeler, Jeffrey M.
Michler, Johann
Schneider, Andreas S.
Arzt, Eduard
[J]. ACTA MATERIALIA, 2016, 103 : 483 - 494
[2] FOREST HARDENING IN FACE-CENTERED CUBIC METALS
BASINSKI, ZS
[J]. SCRIPTA METALLURGICA, 1974, 8 (11): : 1301 - 1307
[3] Effects of pre-strain on the compressive stress-strain response of Mo-alloy single-crystal micropillars
Bei, H.
Shim, S.
Pharr, G. M.
George, E. P.
[J]. ACTA MATERIALIA, 2008, 56 (17) : 4762 - 4770
[4] Miniaturized single-crystalline fcc metals deformed in tension: New insights in size-dependent plasticity
Dehm, Gerhard
[J]. PROGRESS IN MATERIALS SCIENCE, 2009, 54 (06) : 664 - 688
[5] Design of a twinning-induced plasticity high entropy alloy
Deng, Y.
Tasan, C. C.
Pradeep, K. G.
Springer, H.
Kostka, A.
Raabe, D.
[J]. ACTA MATERIALIA, 2015, 94 : 124 - 133
[6] Size-affected single-slip behavior of pure nickel microcrystals
Dimiduk, DM
Uchic, MD
Parthasarathy, TA
[J]. ACTA MATERIALIA, 2005, 53 (15) : 4065 - 4077
[7] Plastic deformation properties of Zr-Nb-Ti-Ta-Hf high-entropy alloys
Feuerbacher, M.
Heidelmann, M.
Thomas, C.
[J]. PHILOSOPHICAL MAGAZINE, 2015, 95 (11) : 1221 - 1232
[8] Feuerbacher M., 2016, UNPUB
[9] Dislocations and deformation microstructure in a B2-ordered Al28Co20Cr11Fe15Ni26 high-entropy alloy
Feuerbacher, Michael
[J]. SCIENTIFIC REPORTS, 2016, 6
[10] Size effect on strength and strain hardening of small-scale [111] nickel compression pillars
Frick, C. P.
Clark, B. G.
Orso, S.
Schneider, A. S.
Arzt, E.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 489 (1-2): : 319 - 329

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