Systems and methods for tailoring coefficients of thermal expansion between extreme positive and extreme negative values

Patent metadata

Field	Value
Publication number	US-10557182-B2
Application number	US-201414897904-A
Country	US
Kind code	B2
Filing date	Jun 12, 2014
Priority date	Jun 14, 2013
Publication date	Feb 11, 2020
Grant date	Feb 11, 2020

Abstract

Systems and methods disclosed herein relate to the manufacture of metallic material with a thermal expansion coefficient in a predetermined range, comprising: deforming, a metallic material comprising a first phase and a first thermal expansion coefficient. In response to the deformation, at least some of the first phase is transformed into a second phase, wherein the second phase comprises martensite, and orienting the metallic material in at least one predetermined orientation, wherein the metallic material, subsequent to deformation, comprises a second thermal expansion coefficient, wherein the second thermal expansion coefficient is within a predetermined range, and wherein the thermal expansion is in at least one predetermined direction. In some embodiments, the metallic material comprises the second phase and is thermo-mechanically deformed to orient the grains in at least one direction.

First claim

What is claimed is:

1. A method of manufacturing a metallic material with a tailored thermal expansion coefficient in a selected range, comprising:
plastically deforming said metallic material comprising a first phase and a first thermal expansion coefficient;
transforming, in response to said plastic deforming, at least some of said first phase into a second phase; and
orienting said metallic material in at least one selected orientation;
wherein:
said metallic material comprises an alloy with a mixture of phases;
said mixture of phases comprises at least one phase capable of a martensitic transformation that is embedded in another phase or phases that may or may not be capable of martensitic transformation;
said second phase comprises martensite;
said plastic deforming comprises mechanical deformation;
said metallic material, subsequent to said plastic deformation, comprises a second thermal expansion coefficient;
said second thermal expansion coefficient is within a selected range; and
said second thermal expansion coefficient quantifies thermal expansion of said metallic material in at least one selected direction.

2. The method of claim 1 , wherein said plastic deforming of said metallic material comprises applying tension in at least one direction, wherein the tailored thermal expansion of said metallic material subsequent to said plastic deforming of said metallic material is in the at least one direction in said metallic material.

3. The method of claim 1 , wherein said plastic deforming of said metallic material comprises applying compression in a first direction, wherein the tailored thermal expansion of said metallic material subsequent to said plastic deforming of said metallic material is in at least one selected direction, and wherein said selected direction is perpendicular to said first direction.

4. The method of claim 1 , wherein said plastic deforming of said metallic material comprises applying shear in a first direction, wherein the tailored thermal expansion of said metallic material subsequent to said plastic deforming of said metallic material is in at least one selected direction, and wherein said selected direction is 45° to said first direction.

5. The method of claim 4 , wherein said metallic material comprises:
NiTi, NiFeGa, TiNb, TiMo, CuMnAlNi, CuMnAl, CuZnAl, CuNiAl, FeNiCoTi, CuAlBe, or is at least one of:
characterized by a general formula NiTiX, wherein X is at least one of Pd, Hf, Zr, Al, Pt, Au;
characterized by a general formula NiMnX, wherein X is at least one of Ga, In, Sn, Al, Sb;
characterized by a general formula NiCoMnX, wherein X is at least one of Ga, In, Sn, Al, Sb;
characterized by a general formula TiNbX, wherein X is at least one of Al, Sn, Ta, Zr, Mo, Hf, V, O;
characterized by a general formula CoNiX, wherein X is at least one of Al, Ga, Sn, Sb, In;
characterized by a general formula TiTaX, wherein X is at least one of Al, Sn, Nb, Zr, Mo, Hf, V, O;
characterized by a general formula FeMnX, wherein X is at least one of Ga, Mn, Ni, Co, Al, Ta, Si;
characterized by a general formula FeNiCoAlX, wherein X is at least one of Ta, Ti, Nb, Cr, W;
and combinations thereof.

6. The method of claim 1 , wherein said plastic deforming is achieved by at least one of hot-rolling, cold-rolling, wire drawing, plane strain compression, bi-axial tension, conform processing, bending, drawing, wire-drawing, swaging, conventional extrusion, equal channel angular extrusion, precipitation heat treatment under stress, tempering, annealing, sintering, monotonic tension processing, monotonic compression processing, monotonic torsion processing, cyclic thermal training under stress, and combinations thereof.

7. A method of manufacturing a metallic material with a tailored thermal expansion coefficient in a selected range, comprising:
plastically deforming a metallic material comprising a first thermal expansion coefficient;
wherein:
said metallic material comprises an alloy;
said metallic material is comprised of a martensitic phase with or without the presence of other phases;
said plastic deforming comprises mechanical deformation;
said martensitic phase in said metallic material is oriented in at least one selected orientation in response to said mechanical deforming;
said metallic material, subsequent to said plastic deforming, comprises a second thermal expansion coefficient due to said orientation;
said second thermal expansion coefficient is within a selected range; and
said second thermal expansion coefficient quantifies thermal expansion of said metallic material in at least one selected direction.

8. The method of claim 7 , wherein said plastic deforming is achieved by at least one of hot-rolling, cold-rolling, wire drawing, plane strain compression, bi-axial tension, conform processing, bending, drawing, wire-drawing, swaging, conventional extrusion, equal channel angular extrusion, precipitation heat treatment under stress, tempering, annealing, sintering, monotonic tension processing, monotonic compression processing, monotonic torsion processing, cyclic thermal training under stress, and combinations thereof.

9. The method of claim 7 , wherein said alloy is oriented in a direction comprising at least one of a [111], [100], or [001] direction.

Assignees

• Texas A & M Univ Sys

Inventors

• Monroe James A
• Karaman Ibrahim
• Arroyave Raymundo

Classifications

• C21D2201/01

  Shape memory effect · CPC title

• C21D2211/008

  Martensite · CPC title

• C21D2211/004

  Dispersions; Precipitations · CPC title

• C22F1/18

  High-melting or refractory metals or alloys based thereon · CPC title

• C21D8/06

  during manufacturing of rods or wires · CPC title