| 发明名称 |
METHOD FOR EVALUATING CORROSION-FATIGUE LIFE OF STEEL MATERIAL |
| 摘要 |
A method for evaluating the corrosion-fatigue life of a steel material includes: bringing a corrosive medium into contact with a predetermined portion of the steel material; measuring strain on the steel material while applying cyclic loads to the steel material; measuring an N-th strain index from strain amplitude at the number of initial load applications and strain amplitude at the N-th load application (N is a natural number larger than the number of initial load applications); and estimating the corrosion-fatigue life of the steel material by comparing the N-th strain index with a previously certified life strain index. |
| 申请公布号 |
US2014283619(A1) |
申请公布日期 |
2014.09.25 |
| 申请号 |
US201414205876 |
申请日期 |
2014.03.12 |
| 申请人 |
HITACHI METALS, LTD. |
发明人 |
SUGANO Ryuuichiroh;HORIE Hidemitsu;KATAOKA Kouta;NAKANO Yousuke |
| 分类号 |
G01N17/00 |
主分类号 |
G01N17/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for evaluating the corrosion-fatigue life of a steel material comprising:
bringing a corrosive medium into contact with a predetermined portion of the steel material; measuring strain on the steel material while applying cyclic loads to the steel material; measuring an N-th strain index from strain amplitude at the number of initial load applications and strain amplitude at the N-th load application (N is a natural number larger than the number of initial load applications); and estimating the corrosion-fatigue life of the steel material by comparing the N-th strain index with a previously certified life strain index. |
| 地址 |
Tokyo JP |
