Invention Grant
- Patent Title: Cubic aluminum titanium nitride coating and method of making same
- Patent Title (中): 立方铝氮化钛涂层及其制作方法
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Application No.: US13021878Application Date: 2011-02-07
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Publication No.: US08409702B2Publication Date: 2013-04-02
- Inventor: Wangyang Ni , Zhigang Ban , Ronald M. Penich , Yixiong Liu
- Applicant: Wangyang Ni , Zhigang Ban , 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:
Coated cutting tools are disclosed which have a hard coating that includes at least one aluminum titanium nitride layer having a single phase structure of B1 cubic phase and a composition of (AlxTi1-x)N, where x is in the range of about 0.46 to about 0.52 moles. The hard coatings also have a residual stress in the range of from about −0.4 to about −3 GPa as measured by the XRD Sin2 Ψ method, and a crystallographic orientation characterized by an x-ray diffraction (200) to (111) peak intensity ratio in the range of about 1 to about 14. Preferably the aluminum titanium nitride layer has an average crystallite size in the range of about 15 to about 50 nanometers. Methods of making such coated cutting tools are also disclosed.
Public/Granted literature
- US20120201615A1 Cubic Aluminum Titanium Nitride Coating and Method of Making Same Public/Granted day:2012-08-09
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