Fatigue Characteristics of Low Cost β Titanium Alloys for Healthcare and Medical Applications
-
- Gunawarman
- Dept. of Production Systems Eng., Toyohashi University of Technology Dept. of Mechanical Eng., Andalas University
-
- Niinomi Mitsuo
- Dept. of Production Systems Eng., Toyohashi University of Technology
-
- Akahori Toshikazu
- Dept. of Production Systems Eng., Toyohashi University of Technology
-
- Souma Takayuki
- Dept. of Production Systems Eng., Toyohashi University of Technology
-
- Ikeda Masahiko
- Kansai University
-
- Toda Hiroyuki
- Dept. of Production Systems Eng., Toyohashi University of Technology
-
- Terashima Kazuhiko
- Dept. of Production Systems Eng., Toyohashi University of Technology
書誌事項
- タイトル別名
-
- Fatigue Characteristics of Low Cost β Titanium Alloys for Healthcare and Medical Applications
- Fatigue Characteristics of Low Cost ベータ Titanium Alloys for Healthcare and Medical Applications
この論文をさがす
抄録
Two new low cost β titanium alloys, Ti–4.3Fe–7.1Cr (TFC alloy) and Ti–4.3Fe–7.1Cr–3.0Al (TFCA alloy) for healthcare and medical applications have been recently developed. As for such applications, the alloys are necessary to have high fatigue performance. The aim of this study is, therefore, to investigate fatigue characteristics of the alloys subjected to solution treatment above β transus. Fatigue tests were carried out at a stress ratio, R, of 0.1 and a frequency of 10 Hz.<BR>Fatigue limit of the solution treated TFC alloy is higher than that of the solution treated TFCA alloy, but both are higher than that of the existing biometallic materials. Fatigue strength of the TFC alloy is almost independent of solution treatment temperature, while, fatigue strength of the TFCA alloy strongly depends on solution treatment temperature, especially, in the low cycle fatigue life (LCF) region. The fatigue ratio and biofunctionality of these new alloys are much higher than those of the existing biometallic materials. In general, a crack initiates from the surface in the LCF region and from subsurface (internal) in the high cycle fatigue life (HCF) region for the TFC alloy, while, in the case of the TFCA alloy, a crack tends to initiate from the subsurface in both LCF and HCF regions. The internal crack initiation sites are found to be the area with low β phase stability in the LCF region and at the area with high stability of β phase in the HCF region. The relatively low fatigue strength of TFCA alloy is associated with the addition of Al that leads to precipitate α phase in which both crack initiation and facet formation are easier to occur.
収録刊行物
-
- MATERIALS TRANSACTIONS
-
MATERIALS TRANSACTIONS 46 (7), 1570-1577, 2005
公益社団法人 日本金属学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001204251468288
-
- NII論文ID
- 10016619478
-
- NII書誌ID
- AA1151294X
-
- COI
- 1:CAS:528:DC%2BD2MXpvFWlurc%3D
-
- ISSN
- 13475320
- 13459678
-
- HANDLE
- 10097/52242
-
- NDL書誌ID
- 7371050
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可