Innovative fabrication of Ti-48Al-6Nb porous coating by cold gas spraying and reactive sintering

Fan Yang; Junpin Lin; Yuehui He; Hao Du; Guoliang Chen

doi:10.1016/j.matlet.2012.02.065

Innovative fabrication of Ti-48Al-6Nb porous coating by cold gas spraying and reactive sintering

Fan Yang
, Junpin Lin^*
, Yuehui He
, Hao Du
, Guoliang Chen

^*Corresponding author for this work

University of Science and Technology Beijing
Central South University
CAS - Institute of Metal Research

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A Ti-48Al-6Nb porous microfiltration coating was fabricated by cold gas spraying (CGS) followed by reactive sintering. The porous coating possesses a porosity of 20.0% and interconnected pore structure. The skeletons in the coating were consisted of typical γ-TiAl/α ₂-Ti ₃Al fully lamellar microstructure, and firmly bonded with substrate. Uniform pores in the range of 0.5-3 μm were formed, attributing to the diffusion reactions and skeletons growth during the reactive sintering process. The bending strength and gas permeability of the supported coating with a thickness of 604.4 μm, are 89.33 MPa and 5.39 × 10 ^{- 13} m ², respectively. The porous coating has high permeability and sufficient strength for microfiltration applications in kinds of extreme environments.

Original language	English
Pages (from-to)	190-193
Number of pages	4
Journal	Materials Letters
Volume	76
DOIs	https://doi.org/10.1016/j.matlet.2012.02.065
State	Published - 1 Jun 2012
Externally published	Yes

Keywords

Coating
Intermetallic compounds
Porous material
Sintering

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10.1016/j.matlet.2012.02.065

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title = "Innovative fabrication of Ti-48Al-6Nb porous coating by cold gas spraying and reactive sintering",

abstract = "A Ti-48Al-6Nb porous microfiltration coating was fabricated by cold gas spraying (CGS) followed by reactive sintering. The porous coating possesses a porosity of 20.0\% and interconnected pore structure. The skeletons in the coating were consisted of typical γ-TiAl/α 2-Ti 3Al fully lamellar microstructure, and firmly bonded with substrate. Uniform pores in the range of 0.5-3 μm were formed, attributing to the diffusion reactions and skeletons growth during the reactive sintering process. The bending strength and gas permeability of the supported coating with a thickness of 604.4 μm, are 89.33 MPa and 5.39 × 10 - 13 m 2, respectively. The porous coating has high permeability and sufficient strength for microfiltration applications in kinds of extreme environments.",

keywords = "Coating, Intermetallic compounds, Porous material, Sintering",

author = "Fan Yang and Junpin Lin and Yuehui He and Hao Du and Guoliang Chen",

year = "2012",

month = jun,

day = "1",

doi = "10.1016/j.matlet.2012.02.065",

language = "英语",

volume = "76",

pages = "190--193",

journal = "Materials Letters",

issn = "0167-577X",

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TY - JOUR

T1 - Innovative fabrication of Ti-48Al-6Nb porous coating by cold gas spraying and reactive sintering

AU - Yang, Fan

AU - Lin, Junpin

AU - He, Yuehui

AU - Du, Hao

AU - Chen, Guoliang

PY - 2012/6/1

Y1 - 2012/6/1

N2 - A Ti-48Al-6Nb porous microfiltration coating was fabricated by cold gas spraying (CGS) followed by reactive sintering. The porous coating possesses a porosity of 20.0% and interconnected pore structure. The skeletons in the coating were consisted of typical γ-TiAl/α 2-Ti 3Al fully lamellar microstructure, and firmly bonded with substrate. Uniform pores in the range of 0.5-3 μm were formed, attributing to the diffusion reactions and skeletons growth during the reactive sintering process. The bending strength and gas permeability of the supported coating with a thickness of 604.4 μm, are 89.33 MPa and 5.39 × 10 - 13 m 2, respectively. The porous coating has high permeability and sufficient strength for microfiltration applications in kinds of extreme environments.

AB - A Ti-48Al-6Nb porous microfiltration coating was fabricated by cold gas spraying (CGS) followed by reactive sintering. The porous coating possesses a porosity of 20.0% and interconnected pore structure. The skeletons in the coating were consisted of typical γ-TiAl/α 2-Ti 3Al fully lamellar microstructure, and firmly bonded with substrate. Uniform pores in the range of 0.5-3 μm were formed, attributing to the diffusion reactions and skeletons growth during the reactive sintering process. The bending strength and gas permeability of the supported coating with a thickness of 604.4 μm, are 89.33 MPa and 5.39 × 10 - 13 m 2, respectively. The porous coating has high permeability and sufficient strength for microfiltration applications in kinds of extreme environments.

KW - Coating

KW - Intermetallic compounds

KW - Porous material

KW - Sintering

UR - https://www.scopus.com/pages/publications/84862779831

U2 - 10.1016/j.matlet.2012.02.065

DO - 10.1016/j.matlet.2012.02.065

M3 - 文章

AN - SCOPUS:84862779831

SN - 0167-577X

VL - 76

SP - 190

EP - 193

JO - Materials Letters

JF - Materials Letters

ER -

Innovative fabrication of Ti-48Al-6Nb porous coating by cold gas spraying and reactive sintering

Abstract

Keywords

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