| Item type |
デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2007-03-04 |
| タイトル |
|
|
タイトル |
イオン窒化した低炭素鋼S15CKの疲労破壊機構 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Fatigue Fracture Mechanism of an Ion-nitrided Low Carbon Steel S15 CK |
|
言語 |
en |
| 作成者 |
眞喜志, 隆
真壁, 朝敏
兼城, 英夫
玉城, 真司
Makishi, Takashi
Makabe, Chobin
Kaneshiro, Hideo
Tamaki, Shinji
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
言語 |
ja |
|
権利情報 |
Copyright (c) 2001 日本機械学会 |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Fatigue Fracture |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Fatigue life |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Ion Nitriding |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Nitrided Steel |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Crack Initiation |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Crack Propagation |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
The fatigue strength and the fracture mechanism of ion-nitrided steel S 15 CK were investigated by using three types of the specimen, that is, the annealed specimen, the nitrided specimen and the specimen that the surface layer was removed. The last specimen is called the surface removed specimen and its surface layer was removed 0.1 mm in radius after nitriding. The fatigue limit of the nitrided specimen was higher than that of the annealed specimen, but was almost the same as that of the surface removed specimen. This is related to the hardness distribution of the specimen. In the case of the nitrided specimen, the hardness is recorded maximum at the surface layer and decreased in the internal section. The estimated strength from the hardness of that specimen is higher than the measured fatigue limit within the 0.1 mm thickness layer from the surface. At the internal section deeper than 0.1 mm from the surface, the estimated strength is expected to be lower than the fatigue limit. Thus the fatigue limit and strength of the nitrided specimen are determined by the material properties of internal site. So, the fatigue limit and strength of the nitrided specimen are not decreased even if the surface layer is removed. In the case of the nitrided specimen, the crack was difficult to be observed from the surface because the crack initiation occurred from the internal site. To remove the surface layer makes ease to observe the crack on the surface. In the case of the surface removed specimen, many cracks were initiated and propagate along the needle shaped participate Fe_4N and finaly these cracks made coalescence each other. The similar mechanism is expected to be operated at the internal site of the nitrided specimen from the observation of the fracture surfaces. |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
論文 |
| 出版者 |
|
|
出版者 |
日本機械学会 |
|
言語 |
ja |
| 言語 |
|
|
言語 |
jpn |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 識別子 |
|
|
識別子 |
http://hdl.handle.net/20.500.12000/216 |
|
識別子タイプ |
HDL |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
03875008 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN0018742X |
| 収録物名 |
|
|
収録物名 |
日本機械学会論文集. A編 |
|
言語 |
ja |
| 収録物名 |
|
|
収録物名 |
Transactions of the Japan Society of Mechanical Engineers. A |
|
言語 |
en |
| 書誌情報 |
巻 67,
号 657,
p. 119-125,
発行日 2001-05-25
|
kaneshiro_h02.pdf
