Activated pressureless infiltration of metal-matrix composites with graded activator content

Bahraini, Masoud; Minghetti, T.; Zoellig, M.; Schubert, Jan; Berroth, Karl; Schelle, Christian; Graule, Thomas; Kuebler, Jakob

doi:10.1016/j.compositesa.2009.06.016

Cited by 32 publications

(14 citation statements)

References 23 publications

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“…Figure 8 shows the XRD pattern of the fracture surface of the infiltrated AN30 composite in Fig.7. By the index of the XRD patterns, it is found that except for the austenitic phase in the X10CrNi18-8 steel, two new compound phases of (Fe x Al y ) 3 Meanwhile, it has been proved that there is dissolution of the oxide in liquid steel melt at 1 600 °C [1], which can affect the wettability at the steel/ceramic interface. In this study, the oxidation of Fe and Cr due to the remains of oxygen in the environment can not completely be excluded.…”

Section: Bonding Strength and Phase Characterization Ofmentioning

confidence: 98%

“…However, Ref. [1] reported that Ti particles inside the ceramic will block the melt infiltration channels when Ti content increases, and the processing of coating or plating Ni is very complex and expensive. Therefore, it becomes an interesting problem whether a more economic and simple method for the fabrication of alloy steel/alumina composites can be developed or not.…”

Section: Introductionmentioning

confidence: 99%

“…Among various MMCs, high-melting alloy steel matrix composites reinforced by oxide ceramics (e.g. Al 2 O 3 and ZrO 2 ) not only have various advantages of MMCs but also possess ideal performance at high temperature, which have been produced by melts infiltration [1][2][3][4][5][6][7][8][9] and tape casting [10]. In comparison with the tape casting, the melts infiltration is a more economic and attractive method.…”

Section: Introductionmentioning

confidence: 99%

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Bonding mechanism of X10CrNi18-8 with Ni/Al2O3 composite ceramic by pressureless infiltration

Yang

Chen

Han

et al. 2011

J. Cent. South Univ. Technol.

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An alloy steel/alumina composite was successfully fabricated by pressureless infiltration of X10CrNi18-8 steel melt on 30% (mass fraction) Ni-containing alumina based composite ceramic (Ni/Al 2 O 3 ) at 1 600 °C. The infiltration quality and interfacial bonding behavior were investigated by SEM, EDS, XRD and tensile tests. The results show that there is an obvious interfacial reaction layer between the alloying steel and the Ni/Al 2 O 3 composite ceramic. The interfacial reactive products are (Fe x Al y ) 3 O 4 intermetallic phase and (Al x Cr y ) 2 O 3 solid solution. The interfacial bonding strength is as high as about 67.5 MPa. The bonding mechanism of X10CrNi18-8 steel with the composite ceramic is that Ni inside the ceramic bodies dissolves into the alloy melt and transforms into liquid channels, consequently inducing the steel melt infiltrating and filling in the pores and the liquid channels. Moreover, the metallurgical bonding and interfacial reactive bonding also play a key role on the stability of the bonding interface.

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Section: Bonding Strength and Phase Characterization Ofmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bonding mechanism of X10CrNi18-8 with Ni/Al2O3 composite ceramic by pressureless infiltration

Yang

Chen

Han

et al. 2011

J. Cent. South Univ. Technol.

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“…(1), the wetting of the ceramic substrate by molten metal will happen at θ<90°. Otherwise, wetting will not occur [3,[8][9][10][11].…”

Section: Introductionmentioning

confidence: 98%

Effect of magnesium and nickel coatings on the wetting behavior of alumina toughened zirconia by molten Al-Mg alloy

Sharifi

Khavandi

Divandari

et al. 2012

Int J Miner Metall Mater

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The wettability of alumina toughened zirconia (ZTA) by Al-Mg alloy was investigated using the sessile drop technique. The effects of nickel coating, magnesium content, nitrogen atmosphere, and processing temperature on the contact angle between the molten alloy and the substrate were determined. Likewise, the effect of these factors on the wetting properties was studied. The results showed that the nickel coating on the ceramic substrate caused a significant reduction in solid/liquid surface energy and the contact angle decreased obviously. The presence of magnesium in the molten aluminum alloy in nitrogen atmosphere reduced the contact angle effectively. The presence of magnesium in the alloy must be at a minimum amount of 2wt%-3wt%. Moreover, it was suggested that some chemical reactions in the Al-Mg-N system led to the production of Mg 3 N 2 and AlN compositions. These compositions improved the wetting properties of the systems by reducing the surface energy of the molten. It was shown that increasing the temperature is also an effective factor for the enhancement of wetting properties.

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“…Al based alloys are reinforced with Al 2 O 3 , B 4 C, TiC and SiC to enhance mechanical properties of Al alloys. Even though various methods are in practice for the production of MMC's [1][2][3][4][5][6][7]. Liquid metal stir casting method proved to be a better method in achieving wettability and homogeneous dispersion of reinforced materials [8,9,12,16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Copper Coated SiC Reinforcements on Microstructure, Mechanical Properties and Wear of Aluminium Composites

Kori

Vanarotti²,

Angadi

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Activated pressureless infiltration of metal-matrix composites with graded activator content

Cited by 32 publications

References 23 publications

Bonding mechanism of X10CrNi18-8 with Ni/Al2O3 composite ceramic by pressureless infiltration

Bonding mechanism of X10CrNi18-8 with Ni/Al2O3 composite ceramic by pressureless infiltration

Effect of magnesium and nickel coatings on the wetting behavior of alumina toughened zirconia by molten Al-Mg alloy

Effect of Copper Coated SiC Reinforcements on Microstructure, Mechanical Properties and Wear of Aluminium Composites

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