Study on microstructure and properties of Ni-based alloy/Y2O3-deposited metals by laser cladding

Xu, Pei Quan; Gong, Hong Ying; Xu, Guo Xiang; He, Jian; Yu, Zhi Shui

doi:10.1007/s10853-007-2339-6

Cited by 10 publications

(1 citation statement)

References 18 publications

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“…Among the most popular types of reinforcements, carbides such as tungsten (WC) [3][4][5][6][7], chromium (Cr 3 C 2 ) [3,8], silicon (SiC) [2,[9][10][11][12] or titanium carbides (TiC) [13][14][15] have often been used in view of their high hardness to enhance the wear resistance of the composites. Oxides [16,17], nitrides [18] or borides [19,20] also proved of interest as reinforcement, as did intermetallics [9,15]. Alternatively, the second phase may also be selected in order to fulfil a specific function, such as, self-cleaning [21], self-healing [22,23] or as solid lubricant in self-lubricating MMCs that are currently attracting a growing interest for applications where classical lubrication methods do not work [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

On the Role of Interfacial Reactions, Dissolution and Secondary Precipitation During the Laser Additive Manufacturing of Metal Matrix Composites: A Review

Mertens¹,

Lecomte-Beckers²

2016

New Trends in 3D Printing

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Since current trends in the transportation, energy or mechanical industries impose increasingly demanding service conditions for metallic parts, metal matrix composites MMCs are the object of a growing interest. Powder-based laser additive manufacturing, which allows making parts with complex shapes, appears particularly adapted for the production of MMCs. This paper reviews the current state-of-the-art in the production of MMCs by additive processes, with the aim of assessing the potentials and difficulties offered by these techniques. Two main processing routes are envisaged, i.e. the processing of ex situ composites in which the reinforcing phase as a powder often of ceramic particles is directly mixed with the powder of the matrix alloy, and both powders are simultaneously processed by the laser."lternatively, the reinforcing phase can be produced in situ by a chemical reaction during the fabrication of the composite. For both processing routes, a careful control is needed to overcome challenges brought, e.g. by the behaviour of the reinforcement particles in the laser beam, by changes in laser absorptivity or by the dissolution of the reinforcing particles in the molten metal, in order to produce MMCs with enhanced usage properties.

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