TY - JOUR
T1 - A new life extension method for high cycle fatigue using micro-martensitic transformation in an austenitic stainless steel
AU - Myeong, T. H.
AU - Yamabayashi, Y.
AU - Shimojo, M.
AU - Higo, Y.
N1 - Funding Information:
This study was partly supported by a Grant-in-Aid for COE Research from the Ministry of Education, Science, Sports and Culture, Japan (No. 07CE2003, `Ultra-parallel Optoelectronics').
Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 1997
Y1 - 1997
N2 - Most of the conventional strengthening methods for metals and alloys such as work hardening, precipitation hardening, cause a decrease in ductility and are not very effective for cyclic loading. In this study, a new strengthening method, which is effective for high cycle fatigue, has been developed. The intersections of dislocations in a stainless steel are freezed by very fine martensite particles, which are supposed to suppress dislocation motion at low stress amplitudes. Fatigue life in a high cycle regime increased > 60 times, and no decrease in ductility was observed in tensile tests, as compared to a work-hardened stainless steel.
AB - Most of the conventional strengthening methods for metals and alloys such as work hardening, precipitation hardening, cause a decrease in ductility and are not very effective for cyclic loading. In this study, a new strengthening method, which is effective for high cycle fatigue, has been developed. The intersections of dislocations in a stainless steel are freezed by very fine martensite particles, which are supposed to suppress dislocation motion at low stress amplitudes. Fatigue life in a high cycle regime increased > 60 times, and no decrease in ductility was observed in tensile tests, as compared to a work-hardened stainless steel.
KW - Austenitic stainless steel
KW - Cyclic plastic deformation
KW - Fatigue life extension
KW - Martensitic transformation
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M3 - Article
AN - SCOPUS:0031348849
VL - 19
SP - S69-S73
JO - International Journal of Fatigue
JF - International Journal of Fatigue
SN - 0142-1123
IS - SUPPL.1
ER -