Nanoindentation study of hydride diffusion layer in commercial pure titanium
Article dans une revue avec comité de lecture
Author
WANG, Qian
243747 Labex DAMAS
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
243747 Labex DAMAS
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
LECOMTE, Jean-Sébastien
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
243747 Labex DAMAS
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
243747 Labex DAMAS
Date
2022Journal
MATERIALS SCIENCE AND ENGINEERING. A, STRUCTURAL MATERIALSAbstract
In this work, the mechanical properties of hydride diffusion layer were thoroughly researched by nano indentation technique. For the first time, the clear section microstructure of hydride diffusion layer was revealed under scanning electron microscope with complicated interactions of hydride plates near the interface between hydride layer and titanium matrix. The hydride layer section has higher hardness and lower modulus towards titanium matrix due to the hard nature and easier crack nucleation of hydride precipitation. Besides, the hardness of titanium matrix shows considerable anisotropy. The anisotropic hardness of sample surface was studied before and after hydrogen charging. The hardness of titanium matrix decreases with the increase of deviation angle between c-axis and surface normal. The hydride layer formed in the titanium grain with more favorable orientation for hydride transformation tends to possess higher indentation hardness.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureWANG, Qian; XU, Shun; LECOMTE, Jean-Sébastien; SCHUMAN, Christophe; PELTIER, Laurent; SHEN, Xiao; SONG, Wenwen (Elsevier, 2019)Ti and its alloys have a variety of applications in aerospace industry and medical implants. The formation of hydride has been used in biomedical areas and can significantly influence the mechanical performance of materials. ...
-
Article dans une revue avec comité de lectureAMOUZOU-ADOUN, Yaovi Armand; JEBAHI, Mohamed; FIVEL, Marc; FOREST, Samuel; LECOMTE, Jean-Sebastien; SCHUMAN, Christophe; ABED-MERAIM, Farid (Elsevier BV, 2023-04)Although presenting attractive features in dealing with small-scale size effects, strain gradient plasticity (SGP) theories can lead to uncommon phenomena for some boundary value problems. Almost all non-incremental ...
-
Communication avec acteThe technique of divergent beam X-ray (Kossel) diffraction is being used for determination of local lattice orientations and lattice distortions (elastic strains). The Kossel patterns are recorded in a scanning electron ...
-
Article dans une revue avec comité de lectureINAL, Karim; PATOOR, Etienne; LECOMTE, Jean-Sébastien; EBERHARDT, André; BERVEILLER, Sophie; PESCI, Raphaël (Trans Tech Publications Inc, 2006)A Kossel microdiffraction experimental set up is under development inside a Scanning Electron Microscope (SEM) in order to determine the crystallographic orientation as well as the inter- and intragranular strains and ...
-
Direct measurement of local constitutive relations, at the micrometre scale, in bulk metallic alloys Article dans une revue avec comité de lecturePLANCHER, E; MAURICE, C; LOISNARD, D; RUPIN, N; MARIJON, Jean-Baptiste; MICHA, Jean-Sébastien; ROBACH, Odile; CASTELNAU, Olivier; BOSSO, E; STODOLNA, J; PETIT, J; FAVIER, Véronique (International Union of Crystallography, 2017)Multiscale models involving crystal plasticity are essential to predict the elastoplastic behavior of structural materials with respect to their microstructure. However, those models are often limited by a poor knowledge ...