Invention Grant
- Patent Title: Carburized component
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Application No.: US14899878Application Date: 2014-06-24
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Publication No.: US10428414B2Publication Date: 2019-10-01
- Inventor: Kyohei Nakayama , Yasuaki Sakai , Toshiyuki Morita , Keisuke Inoue
- Applicant: DAIDO STEEL CO., LTD.
- Applicant Address: JP Aichi
- Assignee: DAIDO STEEL CO., LTD.
- Current Assignee: DAIDO STEEL CO., LTD.
- Current Assignee Address: JP Aichi
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2013-134262 20130626; JP2014-079166 20140408
- International Application: PCT/JP2014/066717 WO 20140624
- International Announcement: WO2014/208562 WO 20141231
- Main IPC: C23C8/22
- IPC: C23C8/22 ; C21D9/28 ; C21D9/32 ; C21D9/40 ; C22C38/60 ; C21D9/00 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/42 ; C22C38/44 ; C22C38/48 ; C22C38/50 ; C22C38/54 ; C21D1/06
Abstract:
The present invention provides a carburized part having a total amount of TiC, AlN and ZrC, which are precipitate particles, of 4.5×10−10 mole or less per 1 mm2 of grain boundary area of prior austenite grains after carburization. According to the present invention, it is possible to provide a carburized part which allows effective inhibition of abnormal grain growth in spite of a carburizing treatment and makes it possible to solve the problem of reduction in properties caused by abnormal grain growth.
Public/Granted literature
- US20160145732A1 CARBURIZED COMPONENT Public/Granted day:2016-05-26
Information query
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