| 发明名称 |
AUSTENITIC ALLOY TUBE |
| 摘要 |
An austenitic alloy tube subjected to a cold working and an annealing heat treatment contains C: 0.01% to 0.15%, Cr: 10.0% to 40.0%, Ni: 8.0% to 80.0%, in mass %, and has a metallographic structure satisfying the following Expressions (i) to (iii).;R≦f1 (i);R=I220/I111 (ii);f1=0.28×(F1118.0/(F1118.0+0.358.0)) (iii)Where, in the above Expressions, R is a ratio of an integrated intensity of {220} to an integrated intensity of {111} on a surface layer which is measured by a grazing incidence X-ray diffraction method, I220 is the integrated intensity of {220}, I111 is the integrated intensity of {111}, and F111 is full width of half maximum of {111} on the surface layer which is measured by the grazing incidence X-ray diffraction method. |
| 申请公布号 |
US2015194227(A1) |
申请公布日期 |
2015.07.09 |
| 申请号 |
US201314408483 |
申请日期 |
2013.06.19 |
| 申请人 |
NIPPON STEEL& SUMITOMO METAL CORPORATION |
发明人 |
Momozono Yumi;Yonemura Mitsuharu;Masaki Yasuhiro;Kanzaki Manabu |
| 分类号 |
G21C15/02;C22C19/05;C22C30/00;C22F1/10;C21D8/10;C21D9/08;C21D6/00;C22C38/40;C21D1/26 |
主分类号 |
G21C15/02 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. An austenitic alloy tube subjected to a cold working and an annealing heat treatment, comprising:
C: 0.01% to 0.15%; Cr: 10.0% to 40.0%; and Ni: 8.0% to 80.0%, in mass %, wherein the austenitic alloy tube has a metallographic structure satisfying the following Expressions (i) to (iii),
R≦f1 (i)R=I220/I111 (ii)f1=0.28×(F1118.0/(F1118.0+0.358.0)) (iii) where, in the above Expressions, R is a ratio of an integrated intensity of {220} to an integrated intensity of {111} on a surface layer which is measured by a grazing incidence X-ray diffraction method, I220 is the integrated intensity of {220}, I111 is the integrated intensity of {111}, and F111 is full width of half maximum of {111} on the surface layer which is measured by the grazing incidence X-ray diffraction method. |
| 地址 |
Chiyoda-ku, Tokyo JP |
