Preparation and Interface Investigation of Fe/Al<sub>2</sub>O<sub>3P</sub> Composite Activated by Ni and Ti

Tang, Shuli; Gao, Yimin; Li, Yefei; Zheng, Qi

doi:10.1002/adem.201600302

Cited by 36 publications

(4 citation statements)

References 34 publications

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“…Recently, AlNi 2 Ti was observed at the interface in zirconia-toughened alumina (ZTA) or Al 2 O 3 reinforced iron matrix composite with an Ni-Ti transition layer that is expected to be applied for wear-resistant material [33,34].…”

Section: Introductionmentioning

confidence: 99%

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First-Principles Investigations of the Structural, Anisotropic Mechanical, Thermodynamic and Electronic Properties of the AlNi2Ti Compound

Tang

Gao

et al. 2018

Crystals

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Abstract:In this paper, the electronic, mechanical and thermodynamic properties of AlNi 2 Ti are studied by first-principles calculations in order to reveal the influence of AlNi 2 Ti as an interfacial phase on ZTA (zirconia toughened alumina)/Fe. The results show that AlNi 2 Ti has relatively high mechanical properties, which will benefit the impact or wear resistance of the ZTA/Fe composite. The values of bulk, shear and Young's modulus are 164.2, 63.2 and 168.1 GPa respectively, and the hardness of AlNi 2 Ti (4.4 GPa) is comparable to common ferrous materials. The intrinsic ductile nature and strong metallic bonding character of AlNi 2 Ti are confirmed by B/G and Poisson's ratio. AlNi 2 Ti shows isotropy bulk modulus and anisotropic elasticity in different crystallographic directions. At room temperature, the linear thermal expansion coefficient (LTEC) of AlNi 2 Ti estimated by quasi-harmonic approximation (QHA) based on Debye model is 10.6 × 10 −6 K −1 , close to LTECs of zirconia toughened alumina and iron. Therefore, the thermal matching of ZTA/Fe composite with AlNi 2 Ti interfacial phase can be improved. Other thermodynamic properties including Debye temperature, sound velocity, thermal conductivity and heat capacity, as well as electronic properties, are also calculated.

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Section: Introductionmentioning

confidence: 99%

“…composite with an Ni-Ti transition layer that is expected to be applied for wear-resistant material [33,34]. The active elements Ni and Ti can promote the atom diffusion and chemical reaction between ZTA and Fe.…”

Section: Introductionmentioning

confidence: 99%

First-Principles Investigations of the Structural, Anisotropic Mechanical, Thermodynamic and Electronic Properties of the AlNi2Ti Compound

Tang

Gao

et al. 2018

Crystals

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“…Ru et al [16] found electroless plated Ni and Cr on the surface of ZTA, and Ni and Cr diffused into the iron matrix under high temperature conditions, forming a diffusion interface layer, which improved the wettability of ZTA and matrix. In the existing literature, most of the Fe-ZTA cermets are prepared by molten metal die forging process [2,17,18], and the prepared Fe-ZTA cermet is often used to prepare wear-resistant materials, but the molding rate is low. The preparation of Fe-ZTA cermet material by powder metallurgy can effectively solve the problem of low molding rate of cermet and can achieve densification [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of Fe-ZTA cermet prepared by vacuum hot-pressed sintering

Sun

Jiang

Sun

et al. 2020

Mater. Res. Express

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The cermet based on metallic iron with zirconia toughened alumina (ZTA) as the reinforcing phase was prepared by vacuum hot-pressed sintering. The ZTA particles were subjected to electroless nickel plating to improve the interfacial bonding ability of ZTA and Fe matrix. In this paper, after electroless nickel plating, the effects of different particle sizes and different contents of ZTA particles on the grinding properties of Fe-based ZTA (Fe-ZTA) cermets were investigated. The results show that the ZTA particles are tightly bound to the Fe matrix. An interface layer is formed between the ZTA particles and the Fe matrix and it can improve the grinding ability of the Fe-ZTA cermet. By reducing the particle size and the content of ZTA particles, the friction coefficient between Fe-based ZTA cermet and the machined surface can be increased, and the surface roughness of the machined surface will reduce. When the ZTA particle size is F14 and the iron binder content is 40%, the friction coefficient between the Fe-ZTA cermet and the steel bar is 0.4981, the surface roughness of steel bar is 40.164 μm, the grinding ratio is 685.952.

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“…Over the recent decades, ceramic particulates reinforced metal matrix composites have attracted much attention owing to their superior wear resistance. In particular, Al 2 O 3 particulates (Al 2 O 3 p)-reinforced iron or steel matrix (Al 2 O 3 p/iron(steel)) composites have become the hot point of research and applications owing to their superior wear resistance and low costs [1][2][3][4][5][6]. However, the low ductility and toughness of Al 2 O 3 p/steel composites are the fatal weakness for their wider applications.…”

Section: Introductionmentioning

confidence: 99%

Compressive properties and cracking behaviour of 3D interpenetrating hierarchical Al₂O₃p/steel composite

Wang

et al. 2019

Materials Science and Technology

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A hierarchical-architectured Al2O3/40Cr steel composite was fabricated by squeeze casting. In the composite, the Al2O3 particulate-reinforced 40Cr steel matrix composite and pure 40Cr steel formed a 3D interpenetrating composite. The uniaxial compressive properties as well as the cracking behaviour, the strengthening and toughening mechanisms of the composite were investigated and discussed. The compressive strength, fracture strain, and elasticity modulus of the architectured composite are 903.5 MPa, 18.8%, and 197 GPa, which are 1.5, 4.0, and 1.7 times the values of the uniformly Al2O3p-reinforced composite, respectively. Special origination and propagation ways of the cracks in the composites were observed with a 3D X-ray microscope, and the contributions of 3D framework structure on the strengthening and toughening of the composite were confirmed.

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Preparation and Interface Investigation of Fe/Al₂O_3P Composite Activated by Ni and Ti

Cited by 36 publications

References 34 publications

First-Principles Investigations of the Structural, Anisotropic Mechanical, Thermodynamic and Electronic Properties of the AlNi2Ti Compound

First-Principles Investigations of the Structural, Anisotropic Mechanical, Thermodynamic and Electronic Properties of the AlNi2Ti Compound

Microstructure and mechanical properties of Fe-ZTA cermet prepared by vacuum hot-pressed sintering

Compressive properties and cracking behaviour of 3D interpenetrating hierarchical Al₂O₃p/steel composite

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Preparation and Interface Investigation of Fe/Al2O3P Composite Activated by Ni and Ti

Cited by 36 publications

References 34 publications

First-Principles Investigations of the Structural, Anisotropic Mechanical, Thermodynamic and Electronic Properties of the AlNi2Ti Compound

First-Principles Investigations of the Structural, Anisotropic Mechanical, Thermodynamic and Electronic Properties of the AlNi2Ti Compound

Microstructure and mechanical properties of Fe-ZTA cermet prepared by vacuum hot-pressed sintering

Compressive properties and cracking behaviour of 3D interpenetrating hierarchical Al2O3p/steel composite

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Preparation and Interface Investigation of Fe/Al₂O_3P Composite Activated by Ni and Ti

Compressive properties and cracking behaviour of 3D interpenetrating hierarchical Al₂O₃p/steel composite