Morphology and formation mechanism of primary TiB2 in TiAlB alloys

Hu Zhang; Wen Li Gao; Er Lin Zhang; Song Yan Zeng

Morphology and formation mechanism of primary TiB₂ in TiAlB alloys

Hu Zhang^*
, Wen Li Gao
, Er Lin Zhang
, Song Yan Zeng

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

2 Scopus citations

Abstract

Microstructure and phase constitution of Ti-53Al-xB alloys produced by an in-situ growing method were investigated by X-ray diffraction and scanning electron microscope respectively. The results show that these alloys are composed of TiAl and TiB₂ phase, while the primary hexagonal prism TiB₂ exhibits pyramidal protrusion or rod shape dendrites on its basal facets. The protrusions or rods exhibit facets which parallel to that of the primary TiB₂. The solid-liquid interface stability of primary TiB₂ was discussed and the formation mechanism of the morphology of primary TiB₂ was investigated.

Original language	English
Pages (from-to)	540-542
Number of pages	3
Journal	Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
Volume	28
Issue number	5
State	Published - Oct 2002

Keywords

Boride
Crystal growth
Metallic matrix composites
Titanium alloys

Cite this

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title = "Morphology and formation mechanism of primary TiB2 in TiAlB alloys",

abstract = "Microstructure and phase constitution of Ti-53Al-xB alloys produced by an in-situ growing method were investigated by X-ray diffraction and scanning electron microscope respectively. The results show that these alloys are composed of TiAl and TiB2 phase, while the primary hexagonal prism TiB2 exhibits pyramidal protrusion or rod shape dendrites on its basal facets. The protrusions or rods exhibit facets which parallel to that of the primary TiB2. The solid-liquid interface stability of primary TiB2 was discussed and the formation mechanism of the morphology of primary TiB2 was investigated.",

keywords = "Boride, Crystal growth, Metallic matrix composites, Titanium alloys",

author = "Hu Zhang and Gao, \{Wen Li\} and Zhang, \{Er Lin\} and Zeng, \{Song Yan\}",

year = "2002",

month = oct,

language = "英语",

volume = "28",

pages = "540--542",

journal = "Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics",

issn = "1001-5965",

publisher = "Beijing University of Aeronautics and Astronautics (BUAA)",

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TY - JOUR

T1 - Morphology and formation mechanism of primary TiB2 in TiAlB alloys

AU - Zhang, Hu

AU - Gao, Wen Li

AU - Zhang, Er Lin

AU - Zeng, Song Yan

PY - 2002/10

Y1 - 2002/10

N2 - Microstructure and phase constitution of Ti-53Al-xB alloys produced by an in-situ growing method were investigated by X-ray diffraction and scanning electron microscope respectively. The results show that these alloys are composed of TiAl and TiB2 phase, while the primary hexagonal prism TiB2 exhibits pyramidal protrusion or rod shape dendrites on its basal facets. The protrusions or rods exhibit facets which parallel to that of the primary TiB2. The solid-liquid interface stability of primary TiB2 was discussed and the formation mechanism of the morphology of primary TiB2 was investigated.

AB - Microstructure and phase constitution of Ti-53Al-xB alloys produced by an in-situ growing method were investigated by X-ray diffraction and scanning electron microscope respectively. The results show that these alloys are composed of TiAl and TiB2 phase, while the primary hexagonal prism TiB2 exhibits pyramidal protrusion or rod shape dendrites on its basal facets. The protrusions or rods exhibit facets which parallel to that of the primary TiB2. The solid-liquid interface stability of primary TiB2 was discussed and the formation mechanism of the morphology of primary TiB2 was investigated.

KW - Boride

KW - Crystal growth

KW - Metallic matrix composites

KW - Titanium alloys

UR - https://www.scopus.com/pages/publications/0036818547

M3 - 文章

AN - SCOPUS:0036818547

SN - 1001-5965

VL - 28

SP - 540

EP - 542

JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

IS - 5

ER -

Morphology and formation mechanism of primary TiB₂ in TiAlB alloys

Abstract

Keywords

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