Invention Grant
- Patent Title: Coated article having yttrium-containing coatings applied by physical vapor deposition and method for making the same
- Patent Title (中): 通过物理气相沉积法涂覆含钇涂层的涂布制品及其制造方法
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Application No.: US13178564Application Date: 2011-07-08
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Publication No.: US08475943B2Publication Date: 2013-07-02
- Inventor: Wangyang Ni , Ronald M Penich , Yixiong Liu
- Applicant: Wangyang Ni , Ronald M Penich , Yixiong Liu
- Applicant Address: US PA Latrobe
- Assignee: Kennametal Inc.
- Current Assignee: Kennametal Inc.
- Current Assignee Address: US PA Latrobe
- Agent Matthew W. Gordon, Esq.
- Main IPC: B32B9/00
- IPC: B32B9/00

Abstract:
A coated article has a substrate and a coating scheme, which has a PVD coating region. The PVD coating region contains aluminum, yttrium, nitrogen and at least one element selected from the group of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten and silicon. The sum of the aluminum and yttrium contents is between about 3 atomic percent and about 55 atomic percent of the sum of aluminum, yttrium and the other elements. The yttrium content is between about 0.5 atomic percent and about 5 atomic percent of the sum of aluminum, yttrium and the other elements. There is also a method of making the coated article that includes steps of providing the substrate and depositing the above coating scheme with the PVD coating region.
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