Characterization of interfacial layer of ZTA ceramic particles reinforced iron matrix composites

Sui, Yudong; Zhou, Mojin; Jiang, Yehua

doi:10.1016/j.jallcom.2018.01.199

Cited by 60 publications

(14 citation statements)

References 18 publications

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“…The microstructures are mainly martensite and austenite phases [25]. The phases of Al2O3 and ZrO2 in the ZTA particles have phase transformations (θ-Al2O3 to α-Al2O3 and t-ZrO2 to m-ZrO2) that will decrease the thermal stress between the ZTA particles and the metal matrix [26]. The phases of the ZTAP/HCCI composites were identified by XRD.…”

Section: Characterization Methodsmentioning

confidence: 99%

Wear Resistance Mechanism of ZTAP/HCCI Composites with a Honeycomb Structure

Zhou

Sui

Chong

et al. 2018

Metals

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Abstract:The abrasive wear resistance of zirconia toughened alumina (ZTA) ceramic particle reinforced high chromium cast iron (HCCI) composites has been systematically investigated using a moving wedge type of apparatus. The results of three-body abrasive wear show that the wear resistance of the composites with honeycomb is three times higher than that of the high chromium cast iron. The wear resistance of the composites with a honeycomb structure is close to that of the layer structure and is higher than that of the HCCI because the honeycomb wall in the cell honeycomb structure is prominent and because the honeycomb core is depressed. The wear mechanisms of the composites are mainly microcutting and fatigue fractures. The honeycomb structure forms a "macrocosmic shadow protection effect" and a "microcosmic shadow protection effect" to protect each composite and to improve the wear resistance of the composites.

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Section: Characterization Methodsmentioning

confidence: 99%

Wear Resistance Mechanism of ZTAP/HCCI Composites with a Honeycomb Structure

Zhou

Sui

Chong

et al. 2018

Metals

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“…The second phase component in the matrix is TiO 2 . ZTA particles are composed of Al 2 O 3 and ZrO 2 , the m-ZrO 2 phase was found in the XRD results, which indicates that ZrO 2 has a phase transition from t-ZrO 2 →m-ZrO 2 .The bulk expansion and shear strain during phase transformation can absorb the thermal stress and improve the toughness of Fe-ZTA cermets[9].…”

mentioning

confidence: 91%

“…It was found in the study that the toughness of ZTA is greater than 12MPa m 1/2 , which is several times than pure Al 2 O 3 ceramics [5,6].The ZrO 2 contained in ZTA undergoes a phase transition of t-ZrO 2 →m-ZrO 2 when subjected to stress, and compressive stress is generated at the crack tip during phase transformation, so that the crack closes under the tensile loading [7,8]. Moreover, the coefficient of thermal expansion (CTE) of ZTA is closer to the iron matrix [9]. Therefore, ZTA is a good candidate for the preparation of cermets with high mechanical properties [10].…”

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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“…However, the ZTA is hardly wetted by molten iron, and the mechanical bonding is easily formed at the interface between ZTA and iron; thereby the ceramic particles at the surface of the composite may be stripped under severe wear conditions. In order to improve the interfacial bonding property, Sui et al [21] prepared a kind of ZTA P /Fe composite by an infiltration casting process; the TiO 2 powder and Na 2 O· n H 2 O·SiO 2 solution were coated onto ZTA particles, and an interfacial transition layer formed between ZTA particles and iron matrix after casting, which mainly contains amorphous Na 4 SiO 4 phases. In our past work [22], we developed a nickel-plating process to deposit ZTA particles, which benefited the interfacial bonding behavior and therefore the three-body wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Bonding and Abrasive Wear Behavior of Iron Matrix Composite Reinforced by Ceramic Particles

Liu

Tang

et al. 2019

Materials

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Using zirconia toughened alumina (ZTA) particles and Ni–Ti complex powders as raw materials, high-Cr cast iron reinforced by ZTA particles was prepared by an infiltration casting process. A continuous transition layer formed at the interface between ZTA particles and the Cr15 matrix, which proves that there is strong metallurgical interfacial bonding at the interface. The phases in the Ni–Ti layer of the ZTAP/Fe composite were preserved compared with the microstructure of sintered ZTA ceramic preform. The hardness of the Ni3Ti, TiO and AlNi2Ti phases in the interfacial transition layer was measured by the nano-indentation method, which is 12.5 GPa, 16.1 GPa and 9.2 GPa, respectively. The three-body wear resistance of the composite reached 12.6 times that of high-Cr cast iron.

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Characterization of interfacial layer of ZTA ceramic particles reinforced iron matrix composites

Cited by 60 publications

References 18 publications

Wear Resistance Mechanism of ZTAP/HCCI Composites with a Honeycomb Structure

Wear Resistance Mechanism of ZTAP/HCCI Composites with a Honeycomb Structure

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

Interfacial Bonding and Abrasive Wear Behavior of Iron Matrix Composite Reinforced by Ceramic Particles

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