Effect of TiB orientation on four-point bending fatigue properties of TiB-reinforced Ti-3Al-2.5V alloy treated with heat extrusion

Hideyuki Hirai; Hiroki Kurita; Sophie Gourdet; Keisuke Fujita; Kenta Nakazawa; Shoichi Kikuchi

doi:10.1016/j.engfracmech.2020.107284

Effect of TiB orientation on four-point bending fatigue properties of TiB-reinforced Ti-3Al-2.5V alloy treated with heat extrusion

Hideyuki Hirai, Hiroki Kurita, Sophie Gourdet, Keisuke Fujita, Kenta Nakazawa, Shoichi Kikuchi

環境科学研究科・先端環境創成学専攻

研究成果: Article › 査読

抄録

TiB-reinforced Ti-3Al-2.5V, in which TiB whiskers are oriented parallel to the direction of heat extrusion, was fabricated. To investigate the effects of TiB whisker orientation on fatigue properties in Ti-3Al-2.5V, four-point bending fatigue tests were conducted for plate-type specimens having three different orientations of TiB whiskers. The fatigue limit and fatigue life of Ti-3Al-2.5V having TiB whiskers, which are oriented parallel to the loading direction, were high. This is because the resistances of fatigue crack initiation and propagation were changed with the TiB orientation in Ti-3Al-2.5V. Thus, fatigue properties in the Ti-3Al-2.5V having TiB whiskers depended on TiB orientation.

本文言語	English
論文番号	107284
ジャーナル	Engineering Fracture Mechanics
巻	238
DOI	https://doi.org/10.1016/j.engfracmech.2020.107284
出版ステータス	Published - 2020 10 15

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2020.107284

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引用スタイル

@article{ddd02a5ace144236a372929c1b5f357d,

title = "Effect of TiB orientation on four-point bending fatigue properties of TiB-reinforced Ti-3Al-2.5V alloy treated with heat extrusion",

abstract = "TiB-reinforced Ti-3Al-2.5V, in which TiB whiskers are oriented parallel to the direction of heat extrusion, was fabricated. To investigate the effects of TiB whisker orientation on fatigue properties in Ti-3Al-2.5V, four-point bending fatigue tests were conducted for plate-type specimens having three different orientations of TiB whiskers. The fatigue limit and fatigue life of Ti-3Al-2.5V having TiB whiskers, which are oriented parallel to the loading direction, were high. This is because the resistances of fatigue crack initiation and propagation were changed with the TiB orientation in Ti-3Al-2.5V. Thus, fatigue properties in the Ti-3Al-2.5V having TiB whiskers depended on TiB orientation.",

keywords = "Fatigue, Fracture mechanics, Metal composite, Titanium alloy, Titanium boride",

author = "Hideyuki Hirai and Hiroki Kurita and Sophie Gourdet and Keisuke Fujita and Kenta Nakazawa and Shoichi Kikuchi",

note = "Funding Information: The authors would like to acknowledge financial support for this work by The Light Metal Educational Foundation, Inc and Toukai Foundation for Technology. ",

year = "2020",

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doi = "10.1016/j.engfracmech.2020.107284",

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AU - Hirai, Hideyuki

AU - Kurita, Hiroki

AU - Gourdet, Sophie

AU - Fujita, Keisuke

AU - Nakazawa, Kenta

AU - Kikuchi, Shoichi

N1 - Funding Information: The authors would like to acknowledge financial support for this work by The Light Metal Educational Foundation, Inc and Toukai Foundation for Technology.

PY - 2020/10/15

Y1 - 2020/10/15

N2 - TiB-reinforced Ti-3Al-2.5V, in which TiB whiskers are oriented parallel to the direction of heat extrusion, was fabricated. To investigate the effects of TiB whisker orientation on fatigue properties in Ti-3Al-2.5V, four-point bending fatigue tests were conducted for plate-type specimens having three different orientations of TiB whiskers. The fatigue limit and fatigue life of Ti-3Al-2.5V having TiB whiskers, which are oriented parallel to the loading direction, were high. This is because the resistances of fatigue crack initiation and propagation were changed with the TiB orientation in Ti-3Al-2.5V. Thus, fatigue properties in the Ti-3Al-2.5V having TiB whiskers depended on TiB orientation.

AB - TiB-reinforced Ti-3Al-2.5V, in which TiB whiskers are oriented parallel to the direction of heat extrusion, was fabricated. To investigate the effects of TiB whisker orientation on fatigue properties in Ti-3Al-2.5V, four-point bending fatigue tests were conducted for plate-type specimens having three different orientations of TiB whiskers. The fatigue limit and fatigue life of Ti-3Al-2.5V having TiB whiskers, which are oriented parallel to the loading direction, were high. This is because the resistances of fatigue crack initiation and propagation were changed with the TiB orientation in Ti-3Al-2.5V. Thus, fatigue properties in the Ti-3Al-2.5V having TiB whiskers depended on TiB orientation.

KW - Fatigue

KW - Fracture mechanics

KW - Metal composite

KW - Titanium alloy

KW - Titanium boride

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