IP Library Granted Patent US 8,420,225
Granted Patent B2
US 8,420,225 · App. 12/180,931 · Granted Apr 16, 2013

Metallic laminate composite

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Quick Facts
Patent No.
US 8,420,225
App. No.
12/180,931
Granted
Apr 16, 2013
Kind
B2
Abstract

A metallic laminate composite having a first alloy layer having a low coefficient of thermal expansion, and a second alloy layer having a higher coefficient of thermal expansion. Additional and optional layers may be included in the laminate composite.

Claims (22)

1. A metallic laminate composite comprising:

a first layer having a low coefficient of thermal expansion material and of a ferritic stainless steel or hardened stainless steel;

a second layer having a high coefficient of thermal expansion material and of an alloy comprising manganese, nickel and copper, wherein the low coefficient of thermal expansion is between about 4.4 (μin/in)/Deg. F. to about 7.2 (μin/in)/Deg. F., and the high coefficient of thermal expansion is between 12 (μin/in)/Deg. F. to about 18 (μin/in)/Deg. F., and

a third layer having between about 2% and about 50% of manganese and between about 10% and about 48% of ferritic steel.

2. The metallic laminate composite as claimed in claim 1 , wherein the low coefficient of thermal expansion is between about 4.8 (μin/in)/Deg. F. to about 6.8 (μin/in)/Deg. F., and the high coefficient of thermal expansion is between about 13 μin/in)/Deg. F. and about 17 (μin/in)/Deg. F.

3. The metallic laminate composite as claimed in claim 1 , wherein the second layer has between about 10% and about 23% of copper, between about 7% and 16% nickel, and between about 1% and about 83% manganese.

4. The metallic laminate composite of claim 3 , wherein the third layer is on an outer surface of the first layer and the fourth layer is on an outer surface of the second layer.

5. The metallic laminate composite of claim 1 , wherein the ratio of the thickness of the material in the high coefficient of thermal expansion layer to the thickness of the material in the low coefficient of thermal expansion layer is selected from 50/50, 57/43 and 60/40 ratios.

6. The metallic laminate composite as claimed in claim 1 , wherein the stainless steel is an AISI Series 400 stainless steel.

7. The metallic laminate composite as claimed in claim 1 , wherein the first layer contains less than 1.5% of manganese, less than 0.05% of phosphorous, less than0.05% of sulfur, less than that 1.5% silicon, less than 30% chromium, less than 1% nickel, less than 1.5% molybdenum, less than 1% titanium, less than 1% columbium, less than 1% nitrogen, less than 1% aluminum, and less than 0.05% magnesium.

8. The metallic laminate composite as claimed in claim 1 , wherein the second layer is an alloy of elements selected from the group consisting of manganese, nickel, copper and combination thereof.

9. The metallic laminate composite as claimed in claim 1 , wherein the second layer consists of between about 63% to about 80% manganese, about 13% to 24% copper, about 7% to 13% nickel; and the manganese, the copper and the nickel are 100% of the layer.

10. The metallic laminate composite as claimed in claim 1 , wherein the stainless steel is martensite steel.

11. A metallic laminate composite comprising:

a first layer having a low coefficient of thermal expansion material and of a ferritic stainless steel or hardened stainless steel;

a second layer having a high coefficient of thermal expansion material and of an alloy comprising manganese, nickel and copper, wherein the low coefficient of thermal expansion is between about 4.4 (μin/in)/Deg. F. to about 7.2 (μin/in)/Deg. F., and the high coefficient of thermal expansion is between 12 (μin/in)/Deg. F. to about 18 (μin/in)/deg. F.; and,

a third layer of an iron-nickel alloy that is on an outer surface of the first layer.

12. A metallic laminate composite comprising a plurality of layers, wherein a first layer is a low coefficient of thermal expansion material comprised of a ferritic stainless steel or precipitation hardened stainless steel and a second layer is a high coefficient of thermal expansion material comprised of an alloy comprising manganese, nickel and copper, wherein the low coefficient of thermal expansion is between about 4.4 (μin/in)/Deg. F. to about 7.2 (μin/in)/Deg. F., and the high coefficient of thermal expansion is between 12 (μin/in)/Deg. F. to about 18 (μin/in)/Deg. F., and, third layer of a low-carbon steel, an austenitic stainless steel, or an iron-nickel alloy.

13. The metallic laminate composite as claimed in claim 12 , wherein the high coefficient of thermal expansion material is comprised of from about 10% to about 23% copper and from about 7% to about 16% nickel, and manganese.

14. The metallic laminate composite as claimed in claim 12 wherein the first layer is semi-austenitic or martensite steel.

15. The metallic laminate composite as claimed in claim 12 , wherein the first layer is AISI Series 400 grade stainless steel.

16. A temperature-measuring or temperature-actuated device comprising the metallic laminate composite of claim 12 .

Assignments (7)
TERMINATION AND RELEASE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Oct 23, 2017
From: U.S. BANK NATIONAL ASSOCIATION
To: EMS ENGINEERED MATERIALS SOLUTIONS, LLC
Reel/Frame 044259/0546 →
SECURITY INTEREST Recorded Oct 23, 2017
From: EMS ENGINEERED MATERIALS SOLUTIONS, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 043919/0722 →
SECURITY AGREEMENT Recorded Sep 5, 2013
From: ICON AGENT, LLC
To: EMS ENGINEERED MATERIALS SOLUTIONS, LLC
Reel/Frame 031170/0965 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2013
From: HAYNES, MICHAEL; GALIPEAU, PAUL
To: EMS ENGINEERED MATERIALS SOLUTIONS, LLC
Reel/Frame 029558/0923 →
GRANT OF SECURITY INTEREST Recorded Dec 23, 2010
From: EMS ENGINEERED MATERIALS SOLUTIONS, LLC
To: US BANK NATIONAL ASSOCIATION
Reel/Frame 025562/0151 →
SECURITY AGREEMENT Recorded Sep 3, 2010
From: EMS ENGINEERED MATERIALS SOLUTIONS, LLC
To: ICON AGENT, LLC
Reel/Frame 024933/0521 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2010
From: HAYNES, MICHAEL; GALIPEAU, PAUL
To: EMS ENGINEERED MATERIAL SOLUTIONS, LLC
Reel/Frame 024854/0454 →