Internal crack initiation in high cycle fatigued Ti-15V-3Cr-3A1-3Sn alloys

被引：10

作者：

Kim, SJ

Hagiwara, M

Kawabe, Y

Kim, SS

机构：

[1] Korea Inst Machinery & Met, Dept Mat Proc, Chang Won, Kyungnam, South Korea

[2] Natl Inst Mat Sci, Mech Property Div, Tsukuba, Ibaraki 305, Japan

[3] Gyeongsang Natl Univ, Res Ctr Aircraft Parts Technol, Chinju, Kyungnam, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 334卷 / 1-2期

关键词：

Ti-15V-3Cr-3Al-3Sn alloy; internal fatigue crack initiation; IFCl;

D O I：

10.1016/S0921-5093(01)01794-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present study, an internal fatigue crack initiation (IFCI) phenomenon in metastable beta Ti-15V-3Cr-3Al-3Sn (Ti-15-3) alloys with various heat treatment conditions was examined. As-solutionized Ti-15-3 alloy was aged in the temperature range between 350 and 500 degreesC for various duration of time, and each specimen was fatigued at an R ratio of 0.1 and a frequency of 80 Hz. It was found that an IFCI occurred in single phase and metastable beta Ti-15-3 alloys for a wide variety of heat treatment and loading conditions. The operating mechanism for the IFCI in beta Ti-15-3 alloys appeared to be varied depending on the microstructure as a result of different aging practices. The IFCI mechanisms for beta Ti-15-3 alloys were discussed based on the detailed SEM fractographic examinations and EDS analyses. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：73 / 78

页数：6

共 13 条

[1]

ADACHI S, 1985, TITANIUM SCI TECHNOL, P2139

[2]

[Anonymous], 1985, Titanium '84

[3] SUBSURFACE CRACK INITIATION IN HIGH CYCLE FATIGUE IN TI6A14V AND IN A TYPICAL MARTENSITIC STAINLESS-STEEL [J].

ATRENS, A ;

HOFFELNER, W ;

DUERIG, TW ;

ALLISON, JE .

SCRIPTA METALLURGICA, 1983, 17 (05) :601-606

[4]

BOYER RR, 1991, MICROSTRUCTURE / PROPERTY RELATIONSHIPS IN TITANIUM ALUMINIDES AND ALLOYS, P511

[5]

FERRERO JG, 1993, BETA TITANIUM ALLOYS IN THE 1990S, P211

[6]

GREGORY JK, 1993, ALLOYS 1990S, P211

[7]

KIM SJ, 1994, METALLURGY AND TECHNOLOGY OF PRACTICAL TITANIUM ALLOYS, P167

[8]

KIM SJ, 1995, 2 PAC RIM INT C ADV, P2284

[9]

MAKINO T, 1994, METALLURGY TECHNOLOG, P173

[10] INTERNAL CRACK INITIATION IN HIGH CYCLE FATIGUE AT CRYOGENIC TEMPERATURES [J].

NAGAI, K ;

UMEZAWA, O ;

YURI, T ;

ISHIKAWA, K .

ENGINEERING FRACTURE MECHANICS, 1991, 40 (4-5) :957-965

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