Invention Grant
- Patent Title: Alloy steel having excellent hydrogen embrittlement resistance and strength and method of manufacturing same
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Application No.: US18072382Application Date: 2022-11-30
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Publication No.: US11767572B1Publication Date: 2023-09-26
- Inventor: Hyun Je Sung
- Applicant: Hyundai Motor Company , Kia Corporation
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company,Kia Corporation
- Current Assignee: Hyundai Motor Company,Kia Corporation
- Current Assignee Address: KR Seoul; KR Seoul
- Agency: Fox Rothschild LLP
- Priority: KR 20220072992 2022.06.15
- Main IPC: C22C38/52
- IPC: C22C38/52 ; C21D9/00 ; C22C38/50 ; C22C38/48 ; C22C38/46 ; C22C38/44 ; C22C38/42 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C21D6/00 ; C22C38/54
Abstract:
Disclosed are an alloy steel including boron (B) to provide improved hardenability, cobalt (Co) to provide improve strength, and the method of preparing the alloy steel. In particular, components of the alloy steel composition are appropriately mixed to form 100 vol % of tempered martensite as a constituent structure, thereby exhibiting excellent hydrogen embrittlement resistance and strength.
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