Title:
Ｆｅ−Ｃｒ−Ｎｉ合金およびその製造方法
Document Type and Number:
Japanese Patent JP6791711
Kind Code:
B2
Abstract:
Ti, N, Al, Mg, and Ca concentrations are controlled in order to prevent aggregation of TiN inclusions. Furthermore, not only is a Fe-Cr-Ni alloy having superior surface property provided, but also a method is proposed in which the Fe-Cr-Ni alloy is produced at low cost using commonly used equipment. The Fe-Cr-Ni alloy includes C ≤ 0.05%, Si: 0.1 to 0.8%, Mn: 0.2 to 0.8%, P ≤ 0.03%, S ≤ 0.001%, Ni:16 to 35 %, Cr: 18 to 25%, Al: 0.2 to 0.4%, Ti: 0.25 to 0.4%, N ≤ 0.016%, Mg: 0.0015 to 0.008%, Ca ≤ 0.005%, O: 0.0002 to 0.005%, freely selected Mo: 0.5 to 2.5% in mass% and Fe and inevitable impurities as the remainder, wherein Ti and N satisfy %N x %Ti ≤ 0.0045 and the number of TiN inclusions not smaller than 5 µm is 20 to 200 pieces/cmat a freely selected cross section.
Inventors:
Kenji Mizuno
Hidekazu Todoroki
Yousuke Baba
Yusuke Kobayashi
Kazutaka Nishijima
Hidekazu Todoroki
Yousuke Baba
Yusuke Kobayashi
Kazutaka Nishijima
Application Number:
JP2016196722A
Publication Date:
November 25, 2020
Filing Date:
October 04, 2016
Export Citation:
Assignee:
Nippon Yakin Kogyo Co., Ltd.
International Classes:
C22C38/00; B22D11/00; C21C5/52; C21C7/00; C21C7/04; C21C7/06; C21C7/064; C21C7/068; C21C7/072; C21C7/076; C21C7/10; C22C30/00; C22C38/50
Domestic Patent References:
| JP2014189826A | ||||
| JP2008266706A | ||||
| JP2014084493A | ||||
| JP2016094662A |
Attorney, Agent or Firm:
Suenari Mikio