Invention Grant
- Patent Title: Methods for manufacturing of cobalt boride coating layer on surface of steels by using a pack cementation process
- Patent Title (中): 通过使用包装胶结法在钢表面制造硼化钴涂层的方法
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Application No.: US13675136Application Date: 2012-11-13
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Publication No.: US08974857B2Publication Date: 2015-03-10
- Inventor: Jin Kook Yoon , Jung Man Doh , Sang Whan Park
- Applicant: Korea Institute of Science and Technology
- Applicant Address: KR Seoul
- Assignee: Korea Institute of Science and Technology
- Current Assignee: Korea Institute of Science and Technology
- Current Assignee Address: KR Seoul
- Agency: Ladas & Parry LLP
- Priority: KR10-2012-0033004 20120330
- Main IPC: C23C10/34
- IPC: C23C10/34 ; C23C16/38 ; B05D7/14 ; C23C8/80 ; C23C8/02 ; C23C8/70 ; C23C10/02 ; C23C10/08 ; C23C10/60
Abstract:
Disclosed is to a method for manufacturing a cobalt boride coating layer on the surface of iron-based metals by using a pack cementation process. In particular, the present invention relates to a method for manufacturing a cobalt boride coating layer by forming a composite coating layer on the surface of steels which is composed of an outmost layer having a composition of cobalt boride (Co2B) and an inner layer having a composition of iron-cobalt boride ((Fe,Co)2B). Since the cobalt boride coating layer is a compact coating layer having little defects such as pores, it can improve physical properties such as corrosion resistance, wear resistance and oxidation resistance of steels.
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