Wangyang Ni from Livingston, NJ, age 48

Cubic Aluminum Titanium Nitride Coating And Method Of Making Same
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US Patent:

8409702, Apr 2, 2013
Filed:

Feb 7, 2011
Appl. No.:

13/021878
Inventors:

Wangyang Ni - Ridgewood NJ, US
Zhigang Ban - Latrobe PA, US
Ronald M. Penich - Greensburg PA, US
Yixiong Liu - Greensburg PA, US
Assignee:

Kennametal Inc. - Latrobe PA
International Classification:

B32B 9/00
US Classification:

428325, 51307, 51309, 428336, 428697, 428698, 428699
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 (AlTi)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 SinΨ 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.

Coated Article Having Yttrium-Containing Coatings Applied By Physical Vapor Deposition And Method For Making The Same
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US Patent:

8475943, Jul 2, 2013
Filed:

Jul 8, 2011
Appl. No.:

13/178564
Inventors:

Wangyang Ni - Parsippany NJ, US
Ronald M Penich - Greensburg PA, US
Yixiong Liu - Greensburg PA, US
Assignee:

Kennametal Inc. - Latrobe PA
International Classification:

B32B 9/00
US Classification:

428697, 428698, 428699
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.

Multilayer Coated Wear-Resistant Member And Method For Making The Same
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US Patent:

20130065081, Mar 14, 2013
Filed:

Sep 14, 2011
Appl. No.:

13/232076
Inventors:

Wangyang Ni - Parsippany NJ, US
Ronald M. Penich - Greensburg PA, US
Yixiong Liu - Greensburg PA, US
Assignee:

Kennametal Inc. - Latrobe PA
International Classification:

B32B 15/00
US Classification:

428660
Abstract:

A coated wear-resistant member, as well as a method for making the same, includes a substrate and a coating scheme. The coating scheme has a region of alternating coating sublayers. One coating sublayer is TiAlSiN wherein 40 atomic percent≦x≦80 atomic percent; 15 atomic percent≦y≦55 atomic percent; 4 atomic percent≦100-x-y≦15 atomic percent. The other coating sublayer is TiAlN wherein 45 atomic percent≦p≦100 atomic percent. The method for making a coated wear-resistant member includes the steps of providing the substrate, and depositing the region of alternating coating sublayers.

Wangyang Ni