水素による遅れ破壊におよぼす負荷様式の影響

URI http://repository.tsuyama-ct.ac.jp/metadata/444
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Title
水素による遅れ破壊におよぼす負荷様式の影響
Title Alternative
Effect of Loading Mode on Delayed Fracture due to Hydrogen
Author
著者 藤原 敏
著者(別表記) Fujiwara Satoshi
著者 上田 達男
著者(別表記) Ueda Tatsuo
著者 山口 常昭
著者(別表記) Yamaguchi Tsuneaki
Abstract

Delayed fracture due to hydrogen is well known to occur very easily in notched specimen under tensile loading (fracture mode I) but the behavior under another loading(fracture mode Ⅱ,Ⅲ) is not known. The most convenient mode Ⅲ (shear) loading arrangement is the torsion of round bars. Then, we confined the present study to mode I and Ⅲ tests and discussed about the effect of loading mode on delayed fracture due to hydrogen. The results are summarized as follow; (1) Delayed fracture occurs also under shear loading, but fracture sensibility was lower than that under tensile loading. (2) In the case of as-received material of HT80 steel, the effect of notch was not occurred and the fracture of all of specimen was shear type. (3) In the case of heat treated material (1300℃ × 1hr.→W.Q.) of same steel, delayed fracture strength of notched specimen becomes stronger than that of plane specimen. Fracture of plane specimens was tensile type, and it is similar to the another brittle material.

Subject
530 Mechanical engineering
Publish Date
1984-10-20
Publication Title
津山工業高等専門学校紀要
Publication Title Alternative
Bulletin of Tsuyama National College of Technology
Volume
22
Start Page
41
End Page
50
ISSN
0287-7066
NCID
AN00149351
Publisher
津山工業高等専門学校
Official URL
Contents Type
Departmental Bulletin Paper
language
Japanese
File Version
publisher