Distinct fatigue crack propagation limit of new precipitation-hardened aluminium alloy

被引：18

作者：

Shikama, Takahiro ^{[2
]}

Takahashi, Yoshimasa ^{[3
]}

Zeng, Lei ^{[1
]}

Yoshihara, Shinji ^{[2
]}

Aiura, Tadashi ^{[2
]}

Higashida, Kenji ^{[4
]}

Noguchi, Hiroshi ^{[1
]}

机构：

[1] Kyushu Univ, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan

[2] Kobe Steel Ltd, Aluminum & Copper Business Chofu Works, Shimonoseki, Yamaguchi 7520953, Japan

[3] Kansai Univ, Dept Mech Engn, Suita, Osaka 5648680, Japan

[4] Kyushu Univ, Dept Mat Sci & Engn, Nishi Ku, Fukuoka 8190395, Japan

来源：

SCRIPTA MATERIALIA | 2012年 / 67卷 / 01期

关键词：

Aluminium alloys; Fatigue crack propagation limit; Fatigue test; Portevin-Le Chatelier effect; Strain aging; GROWTH;

D O I：

10.1016/j.scriptamat.2012.03.018

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

New aluminium alloys were developed by adding excess Mg to the ordinary precipitation-hardened aluminium alloy, JIS 6061-T6. By analyzing the results of the fatigue tests and the coaxing effect test, the existence of a distinct fatigue crack propagation limit in these new aluminium alloys was confirmed using a small-holed specimen. Moreover, by comparing the fatigue process with that of the 6061 alloy, the possibility of generating the fatigue limit in face-centred cubic metals, which has been considered to be absent, was discussed. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：49 / 52

页数：4

共 14 条

[1]

Elber W., 1970, Engineering Fracture Mechanics, V2, P37, DOI 10.1016/0013-7944(70)90028-7

[2]

Increasing the fatigue limit of a bearing steel by dynamic strain ageing [J].

Kerscher, Eberhard ;

Lang, Karl-Heinz ;

Voehringer, Otmar ;

Loehe, Detlef .

INTERNATIONAL JOURNAL OF FATIGUE, 2008, 30 (10-11) :1838-1842

[3]

LIPSITT HA, 1961, T METALL SOC AIME, V221, P918

[4]

STRAIN AGEING DURING FATIGUE OF CARBON STEELS [J].

MINTZ, B ;

WILSON, DV .

ACTA METALLURGICA, 1965, 13 (09) :947-&

[5]

SHORT AND LONG FATIGUE CRACK-GROWTH - A UNIFIED MODEL [J].

NAVARRO, A ;

DELOSRIOS, ER .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1988, 57 (01) :15-36

[6]

EFFECTS OF DISLOCATION LOCKING + STRAIN AGEING ON FATIGUE LIMIT OF LOW-CARBON STEEL [J].

OATES, G ;

WILSON, DV .

ACTA METALLURGICA, 1964, 12 (01) :21-&

[7]

Very high cycle fatigue - Is there a fatigue limit? [J].

Pyttel, B. ;

Schwerdt, D. ;

Berger, C. .

INTERNATIONAL JOURNAL OF FATIGUE, 2011, 33 (01) :49-58

[8]

Shikama T., 2012, J SOLID MEC IN PRESS, V6-5

[9]

Fatigue and fatigue crack growth of aluminium alloys at very high numbers of cycles [J].

Stanzl-Tschegg, SE ;

Mayer, H .

INTERNATIONAL JOURNAL OF FATIGUE, 2001, 23 :S231-S237

[10]

Suresh S., 1984, FATIGUE CRACK GROWTH, P227

← 1 2 →