Pinning effect of in-situ TiCp and TiBw on the grain size and room temperature strength of (TiC + TiB)/Ti composites

Lei Jia; Biao Chen; Shu Feng Li; Hisashi Imai; Katsuyoshi Kondoh

doi:10.14356/kona.2015020

Pinning effect of in-situ TiC_p and TiB_w on the grain size and room temperature strength of (TiC + TiB)/Ti composites

Lei Jia, Biao Chen, Shu Feng Li, Hisashi Imai, Katsuyoshi Kondoh

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

5 Scopus citations

Abstract

(TiC_p + TiB_w)/Ti composite was firstly prepared by spark plasma sintering (SPS) and hot extrusion from Ti-B4C system, and then isothermally heat treated at 400–800 °C for 24 h to study the pinning effect of the in situ formed reinforcements. Microstructure and phase composition was investigated by SEM, XRD and TEM, variation of the grain size of Ti matrix was studied by EBSD analysis, and room temperature strength was also measured after different heat treatments. Results show that, comparing with pure Ti materials, both the grain size of Ti matrix and the room temperature strength of the composite almost keep stable after heat treatments, suggesting the pinning effect of in situ formed TiC_p and TiB_w is effective to suppress the growth of Ti matrix grains during heat treatments.

Original language	English
Pages (from-to)	264-269
Number of pages	6
Journal	KONA Powder and Particle Journal
Issue number	32
DOIs	https://doi.org/10.14356/kona.2015020
State	Published - 2015
Externally published	Yes

Keywords

In situ reaction
Mechanical properties
Microstructure
Powder metallurgy
Ti matrix composites

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title = "Pinning effect of in-situ TiCp and TiBw on the grain size and room temperature strength of (TiC + TiB)/Ti composites",

abstract = "(TiCp + TiBw)/Ti composite was firstly prepared by spark plasma sintering (SPS) and hot extrusion from Ti-B4C system, and then isothermally heat treated at 400–800 °C for 24 h to study the pinning effect of the in situ formed reinforcements. Microstructure and phase composition was investigated by SEM, XRD and TEM, variation of the grain size of Ti matrix was studied by EBSD analysis, and room temperature strength was also measured after different heat treatments. Results show that, comparing with pure Ti materials, both the grain size of Ti matrix and the room temperature strength of the composite almost keep stable after heat treatments, suggesting the pinning effect of in situ formed TiCp and TiBw is effective to suppress the growth of Ti matrix grains during heat treatments.",

keywords = "In situ reaction, Mechanical properties, Microstructure, Powder metallurgy, Ti matrix composites",

author = "Lei Jia and Biao Chen and Li, {Shu Feng} and Hisashi Imai and Katsuyoshi Kondoh",

note = "Publisher Copyright: {\textcopyright} 2015 Hosokawa Powder Technology Foundation.",

year = "2015",

doi = "10.14356/kona.2015020",

language = "英语",

pages = "264--269",

journal = "KONA Powder and Particle Journal",

issn = "0288-4534",

publisher = "Hosokawa Powder Technology Foundation",

number = "32",

}

TY - JOUR

T1 - Pinning effect of in-situ TiCp and TiBw on the grain size and room temperature strength of (TiC + TiB)/Ti composites

AU - Jia, Lei

AU - Chen, Biao

AU - Li, Shu Feng

AU - Imai, Hisashi

AU - Kondoh, Katsuyoshi

PY - 2015

Y1 - 2015

N2 - (TiCp + TiBw)/Ti composite was firstly prepared by spark plasma sintering (SPS) and hot extrusion from Ti-B4C system, and then isothermally heat treated at 400–800 °C for 24 h to study the pinning effect of the in situ formed reinforcements. Microstructure and phase composition was investigated by SEM, XRD and TEM, variation of the grain size of Ti matrix was studied by EBSD analysis, and room temperature strength was also measured after different heat treatments. Results show that, comparing with pure Ti materials, both the grain size of Ti matrix and the room temperature strength of the composite almost keep stable after heat treatments, suggesting the pinning effect of in situ formed TiCp and TiBw is effective to suppress the growth of Ti matrix grains during heat treatments.

AB - (TiCp + TiBw)/Ti composite was firstly prepared by spark plasma sintering (SPS) and hot extrusion from Ti-B4C system, and then isothermally heat treated at 400–800 °C for 24 h to study the pinning effect of the in situ formed reinforcements. Microstructure and phase composition was investigated by SEM, XRD and TEM, variation of the grain size of Ti matrix was studied by EBSD analysis, and room temperature strength was also measured after different heat treatments. Results show that, comparing with pure Ti materials, both the grain size of Ti matrix and the room temperature strength of the composite almost keep stable after heat treatments, suggesting the pinning effect of in situ formed TiCp and TiBw is effective to suppress the growth of Ti matrix grains during heat treatments.

KW - In situ reaction

KW - Mechanical properties

KW - Microstructure

KW - Powder metallurgy

KW - Ti matrix composites

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U2 - 10.14356/kona.2015020

DO - 10.14356/kona.2015020

M3 - 文章

AN - SCOPUS:84921675285

SN - 0288-4534

SP - 264

EP - 269

JO - KONA Powder and Particle Journal

JF - KONA Powder and Particle Journal

IS - 32

ER -

Pinning effect of in-situ TiC_p and TiB_w on the grain size and room temperature strength of (TiC + TiB)/Ti composites

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Keywords

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