The structure between TaC fibers and matrix interface in a Ni, Cr, Al-TaC in situ composite

Jinjiang Yu; Jun Zhang; Jinguo Li; Heng Zhi Fu; Zhuangqi Hu

doi:10.1016/j.matlet.2003.09.005

The structure between TaC fibers and matrix interface in a Ni, Cr, Al-TaC in situ composite

Jinjiang Yu, Jun Zhang, Jinguo Li, Heng Zhi Fu, Zhuangqi Hu

School of Materials Sience and Engineering

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

1 Scopus citations

Abstract

The Ni, Cr, Al-TaC composite was directionally cast from a nickel-base alloy with a nominal weight composition of Ni-10Cr-5.0Al-13.9Ta-0.9C (wt.%). The thermal gradient in the solid-liquid interface was approximately 250 K/cm. A withdrawal rate of 5 μm/s was used. The structure of the fiber-matrix interface was determined by using TEM. Regular broken line shape, irregular broken line shape, wavy shape and fish-skeleton shape interface structures were observed. Regular broken line shape can be explained by Rebout interface structure model. The reason why the irregular broken line shape, wavy and fish-skeleton interface structure was formed was mainly affected by impurities or perturbation at the interface. Stress from the matrix can efficiently and evenly deliver to TaC fibers in a favour of these interface structures.

Original language	English
Pages (from-to)	1130-1133
Number of pages	4
Journal	Materials Letters
Volume	58
Issue number	6
DOIs	https://doi.org/10.1016/j.matlet.2003.09.005
State	Published - Feb 2004

Keywords

Directional solidification
In situ composite
Interface structure
TaC fibers

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10.1016/j.matlet.2003.09.005

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title = "The structure between TaC fibers and matrix interface in a Ni, Cr, Al-TaC in situ composite",

abstract = "The Ni, Cr, Al-TaC composite was directionally cast from a nickel-base alloy with a nominal weight composition of Ni-10Cr-5.0Al-13.9Ta-0.9C (wt.%). The thermal gradient in the solid-liquid interface was approximately 250 K/cm. A withdrawal rate of 5 μm/s was used. The structure of the fiber-matrix interface was determined by using TEM. Regular broken line shape, irregular broken line shape, wavy shape and fish-skeleton shape interface structures were observed. Regular broken line shape can be explained by Rebout interface structure model. The reason why the irregular broken line shape, wavy and fish-skeleton interface structure was formed was mainly affected by impurities or perturbation at the interface. Stress from the matrix can efficiently and evenly deliver to TaC fibers in a favour of these interface structures.",

keywords = "Directional solidification, In situ composite, Interface structure, TaC fibers",

author = "Jinjiang Yu and Jun Zhang and Jinguo Li and Fu, {Heng Zhi} and Zhuangqi Hu",

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T1 - The structure between TaC fibers and matrix interface in a Ni, Cr, Al-TaC in situ composite

AU - Yu, Jinjiang

AU - Zhang, Jun

AU - Li, Jinguo

AU - Fu, Heng Zhi

AU - Hu, Zhuangqi

PY - 2004/2

Y1 - 2004/2

N2 - The Ni, Cr, Al-TaC composite was directionally cast from a nickel-base alloy with a nominal weight composition of Ni-10Cr-5.0Al-13.9Ta-0.9C (wt.%). The thermal gradient in the solid-liquid interface was approximately 250 K/cm. A withdrawal rate of 5 μm/s was used. The structure of the fiber-matrix interface was determined by using TEM. Regular broken line shape, irregular broken line shape, wavy shape and fish-skeleton shape interface structures were observed. Regular broken line shape can be explained by Rebout interface structure model. The reason why the irregular broken line shape, wavy and fish-skeleton interface structure was formed was mainly affected by impurities or perturbation at the interface. Stress from the matrix can efficiently and evenly deliver to TaC fibers in a favour of these interface structures.

AB - The Ni, Cr, Al-TaC composite was directionally cast from a nickel-base alloy with a nominal weight composition of Ni-10Cr-5.0Al-13.9Ta-0.9C (wt.%). The thermal gradient in the solid-liquid interface was approximately 250 K/cm. A withdrawal rate of 5 μm/s was used. The structure of the fiber-matrix interface was determined by using TEM. Regular broken line shape, irregular broken line shape, wavy shape and fish-skeleton shape interface structures were observed. Regular broken line shape can be explained by Rebout interface structure model. The reason why the irregular broken line shape, wavy and fish-skeleton interface structure was formed was mainly affected by impurities or perturbation at the interface. Stress from the matrix can efficiently and evenly deliver to TaC fibers in a favour of these interface structures.

KW - Directional solidification

KW - In situ composite

KW - Interface structure

KW - TaC fibers

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U2 - 10.1016/j.matlet.2003.09.005

DO - 10.1016/j.matlet.2003.09.005

M3 - 文章

AN - SCOPUS:0346340899

SN - 0167-577X

VL - 58

SP - 1130

EP - 1133

JO - Materials Letters

JF - Materials Letters

IS - 6

ER -

The structure between TaC fibers and matrix interface in a Ni, Cr, Al-TaC in situ composite

Abstract

Keywords

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