| 发明名称 |
METHOD OF MEASURING CRYSTAL GRAIN SIZE OF STEELS BY ULTRASONIC WAVES |
| 摘要 |
PURPOSE:To obtain the size of the effective crystal grains of steels and obtain reliable data by letting the ultrasonic waves of a frequency range wherein the damping of the ultrasonic waves by Rayleigh scattering occupies the majority be propagated into the steel specimen and measuring their damping constants. |
| 申请公布号 |
JPS53126991(A) |
申请公布日期 |
1978.11.06 |
| 申请号 |
JP19770041849 |
申请日期 |
1977.04.12 |
| 申请人 |
NIPPON STEEL CORP |
发明人 |
MATSUDA SHIYOUICHI;SEKIGUCHI SHIYOUICHI;INOUCHI TOORU |
| 分类号 |
G01N15/02;G01N29/00;G01N29/11 |
主分类号 |
G01N15/02 |
| 代理机构 |
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