| 发明名称 |
METAL WIRE ROD COMPOSED OF IRIDIUM OR IRIDIUM ALLOY |
| 摘要 |
The present invention provides a metal wire rod composed of iridium or an iridium alloy, wherein the number of crystal grains on any cross-section in a longitudinal direction is 2 to 20 per 0.25 mm2, and the Vickers hardness at any part is 200 Hv or more and less than 400 Hv. The iridium wire rod is a material which is produced by a μ-PD method, and has low residual stress and which has a small change in the number of crystal grains and hardness even when heated to a temperature equal to or higher than a recrystallization temperature (1200° C. to 1500° C.). The metal wire rod of the present invention is excellent in oxidative consumption resistance under a high-temperature atmosphere, and mechanical properties. |
| 申请公布号 |
US2017072458(A1) |
申请公布日期 |
2017.03.16 |
| 申请号 |
US201515125491 |
申请日期 |
2015.03.23 |
| 申请人 |
TANAKA KIKINZOKU KOGYO K.K. |
发明人 |
YOSHIKAWA Akira;YOKOTA Yuui;NAKAMURA Muneki;TANAKA Kunihiro;NAKAZAWA Tatsuya;SAKAIRI Koichi |
| 分类号 |
B22D11/00;B22D21/00;C30B29/52;C30B15/08;C30B29/02;C22C5/04;B22D11/11 |
主分类号 |
B22D11/00 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A metal wire rod composed of iridium or an iridium alloy, wherein the number of crystal grains on any cross-section in a longitudinal direction is 2 to 20 per 0.25 mm2, and a Vickers hardness at any part is 200 Hv or more and less than 400 Hv. |
| 地址 |
Chiyoda-ku, Tokyo JP |
