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Research Papers

Evaluation of Elastic and Plastic Properties of Ni50Al50(at. %) and (Ni40,Pt10)Al50(at. %) Single Crystals Oriented by Means of Scanning Acoustic Microscopy and Depth Sensing Indentation

[+] Author and Article Information
F. Cleymand, Z. Ayadi

Institut Jean Lamour,
UMR 7198 CNRS—Université de Lorraine,
Département “Nanomatériaux,
Électronique Et Vivant,”
Equipe: “DOLPHIN-Nanomateriaux pour la vie et
Développement Responsible,”
Parc de Saurupt,
CS50840, Nancy Cedex 54011, France

A. Villemiane

Office Nationale d'Etudes et de
Recherches Aérospatiales,
DMMP, BP72,
29 Avenue de la Division Leclerc,
Châtillon Cedex 92322, France

E. Arab-Tehrany

Université de Lorraine,
LIBio EA 4367—2, Avenue de la Forêt de Haye,
Vandoeuvre-Lès-Nancy 54518, France

C. J. F. Kahn

Aix-Maseille Université,
LBA UMRT 24,
Marseille 13916, France;
IFSTTAR, LBA UMRT 24,
Marseille 13916, France

1Corresponding author.

Manuscript received February 11, 2013; final manuscript received May 8, 2013; accepted manuscript posted September 3, 2013; published online September 18, 2013. Assoc. Editor: John Lambros.

J. Appl. Mech 81(3), 031004 (Sep 18, 2013) (5 pages) Paper No: JAM-13-1071; doi: 10.1115/1.4024696 History: Received February 11, 2013; Revised May 08, 2013; Accepted September 03, 2013

Scanning acoustic microscopy and depth sensing indentation are two techniques used for extracting Young's, shear, and indentation moduli as well as the hardness of materials. In this work, we have applied these techniques on Ni50Al50(at. %) and (Ni40,Pt10)Al50(at. %) single crystals oriented (1 0 0) and (1 1 1) to measure their Young's modulus by two different techniques of local measurement and also the hardness of these alloys. Quantitative measurements highlight that the addition of 10 at.% of platinum induces a 5% decrease of Young's modulus (from 195 to 184 GPa) homogeneously spread over the surface orientations investigated,an 8% decrease of the indentation modulus, and a 40% increase of hardness without orientation effect.

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Figures

Grahic Jump Location
Fig. 1

Experimental and calculated stereographic Laue's technique of tested alloys: (a), (e) Ni50Al50 (100); (b), (f) Ni50Al50 (111); (c), (g) (Ni40,Pt10)Al50 (100); and (d), (h) (Ni40,Pt10)Al50 (111). X-ray diffraction conditions: 40 kV/20 mA, 30 mm from the projection screen; steoreographic calculation was made with CaRIne Crystallography software (France)

Grahic Jump Location
Fig. 2

Plot of the median indentation force F with its corridor of variation versus indenter displacement, h, obtained from depth sensing indentation tests on high quality Ni50Al50(at. %) and (Ni40,Pt10)Al50(at. %) single crystals oriented (1 0 0) and (1 1 1)

Grahic Jump Location
Fig. 3

Comparison of the median indentation force F versus indenter displacement, h, obtained from depth sensing indentation tests on high quality Ni50Al50(at. %) and (Ni40,Pt10)Al50(at. %) single crystals oriented (1 0 0) and (1 1 1)

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