Abstract
Fatigue crack propagation tests were carried out along different orientations of a hot rolled SB49 steel plate with or without homogenized heat treatment. The as-received material showed directionality in fatigue crack propagation due to the effect of lamellar structure, while the homogenizing treatment made crack growth isotropic both macroscopically and microscopically. Fractographic examination revealed that the ordinary striation mechanism was predominant when the crack plane was normal to the lamellar structure as well as for any orientation of the homogenized structure. For the case where crack plane was parallel to the lamellar structure, however, sub-cracks initiated at the edge of MnS inclusions located ahead of the main crack, and each propagated independently by a striation mechanism to join with the main crack.
| Original language | English |
|---|---|
| Pages (from-to) | 1019-1025 |
| Number of pages | 7 |
| Journal | Zairyo/Journal of the Society of Materials Science, Japan |
| Volume | 33 |
| Issue number | 371 |
| Publication status | Published - 1984 Aug |
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ASJC Scopus subject areas
- Chemical Engineering (miscellaneous)
- Metals and Alloys
- Polymers and Plastics
Cite this
INFLUENCE OF LAMELLAR STRUCTURE ON FATIGUE FRACTURE MECHANISM FOR SB49 STEEL. / Masuda, Chitoshi; Nishijima, Satoshi; Sumiyoshi, Hideshi; Shimodaira, Masuo.
In: Zairyo/Journal of the Society of Materials Science, Japan, Vol. 33, No. 371, 08.1984, p. 1019-1025.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - INFLUENCE OF LAMELLAR STRUCTURE ON FATIGUE FRACTURE MECHANISM FOR SB49 STEEL.
AU - Masuda, Chitoshi
AU - Nishijima, Satoshi
AU - Sumiyoshi, Hideshi
AU - Shimodaira, Masuo
PY - 1984/8
Y1 - 1984/8
N2 - Fatigue crack propagation tests were carried out along different orientations of a hot rolled SB49 steel plate with or without homogenized heat treatment. The as-received material showed directionality in fatigue crack propagation due to the effect of lamellar structure, while the homogenizing treatment made crack growth isotropic both macroscopically and microscopically. Fractographic examination revealed that the ordinary striation mechanism was predominant when the crack plane was normal to the lamellar structure as well as for any orientation of the homogenized structure. For the case where crack plane was parallel to the lamellar structure, however, sub-cracks initiated at the edge of MnS inclusions located ahead of the main crack, and each propagated independently by a striation mechanism to join with the main crack.
AB - Fatigue crack propagation tests were carried out along different orientations of a hot rolled SB49 steel plate with or without homogenized heat treatment. The as-received material showed directionality in fatigue crack propagation due to the effect of lamellar structure, while the homogenizing treatment made crack growth isotropic both macroscopically and microscopically. Fractographic examination revealed that the ordinary striation mechanism was predominant when the crack plane was normal to the lamellar structure as well as for any orientation of the homogenized structure. For the case where crack plane was parallel to the lamellar structure, however, sub-cracks initiated at the edge of MnS inclusions located ahead of the main crack, and each propagated independently by a striation mechanism to join with the main crack.
UR - http://www.scopus.com/inward/record.url?scp=0021481690&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0021481690&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0021481690
VL - 33
SP - 1019
EP - 1025
JO - Zairyo/Journal of the Society of Materials Science, Japan
JF - Zairyo/Journal of the Society of Materials Science, Japan
SN - 0514-5163
IS - 371
ER -