CN101649430A - NiTiCrRE shape memory alloy hot rolled board preparation method - Google Patents
NiTiCrRE shape memory alloy hot rolled board preparation method Download PDFInfo
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- CN101649430A CN101649430A CN200910032650A CN200910032650A CN101649430A CN 101649430 A CN101649430 A CN 101649430A CN 200910032650 A CN200910032650 A CN 200910032650A CN 200910032650 A CN200910032650 A CN 200910032650A CN 101649430 A CN101649430 A CN 101649430A
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Abstract
The invention relates to a NiTiCrRE shape memory alloy hot rolled board preparation method which is characterized in that NiTiCrRE shape memory alloy blank is annealed at 900 DEG C for 6h to remove oxide skin and feed head, then carries out one-compressino moulding on a 500T oil hydraulic press to be in the size of 60mm*70mm*300mm and is hot-rolled at 920-700DEG C to obtain the board with the thickness of 1mm, the width of 200mm and unlimited length. In the hot rolling process, a vacuum solution treating is performed while the temperature is kept at 850 DEG C for 2h and water quenching is performed. The board which is treated through hot rolling is washed with acid and then annealed at 660-750DEG C while the temperature is kept for 20-30min. The NiTiCrRE shape memory alloy board obtained by the method of the invention can not crack in hot rolling process, and the product expresses good mechanical properties and excellent shape memory effect and can be used in fields such as engineeringand the like according to actual requirements.
Description
Technical field
The present invention relates to the shape memory alloy technical field, the shape memory alloy hot rolled material, preparation method of particularly a kind of NiTiCrRE.
Background technology
The NiTi shape memory alloy is a kind of new type of metal functional materials, has good shape memory effect, therefore, is a kind of ideal functional materials in engineering field.Yet binary NiTi shape memory alloy can not satisfy the application requiring in engineering field, the one, the binary shape NiTi memorial alloy hysteresis of phase transformation big (30 ℃), the 2nd, reverse transformation end temp height (increases Ni content and can reduce the reverse transformation end temp, but processing characteristics descends greatly), therefore people begin to consider to add element on the basis of binary alloy, but still there are many technical barriers in the commercial application of this technology, mainly be that deep processing aspect difficulty is bigger, particularly in the plate hot rolling process work hardening problem is arranged, cause sheet material in course of hot rolling, to ftracture.
The present invention is directed to this problem, develop the shape memory alloy hot rolled material, preparation method of a kind of NiTiCrRE.Through inquiry, not seeing has relevant patent to deliver.
Summary of the invention
The present invention relates to the shape memory alloy hot rolled material, preparation method of a kind of NiTiCrRE.Concrete technical scheme is, the NiTiCrRE blank of shape memory alloy that has prepared is carried out deep processing, it is characterized in that: the NiTiCrRE blank of shape memory alloy is carried out 900 ℃, the homogenizing annealing of 6h, scale removal and rising head, once compression moulding is size 60mm * 70mm * 300mm on the 500T oil press, carry out hot rolling then, rolling temperature is 920 ℃-700 ℃, and the final size after rolling is: thickness 1mm, width 200mm, length is not limit.To carry out a vacuum solid solution in the course of hot rolling and handle, 850 ℃ of insulation 1～2h, shrend.Sheet material after the hot rolling carries out pickling, and carries out anneal, 660 ℃～750 ℃ of annealing temperatures, insulation 20～30min.
The sheet material that hot rolling is good carries out the cutting cutting, is of a size of thickness 1mm, and width is 50mm, length 200mm; The NiTiCrRE shape memory alloy sheet material of cutting out is carried out aging of middle temperature handle, 430 ℃～450 ℃, insulation 15～20min; The NiTiCrRE shape memory alloy sheet material that aging of middle temperature is handled well carries out mechanical vibration milled processed, scale removal.
The shape memory alloy hot rolled material of NiTiCrRE that adopts the inventive method to obtain does not ftracture in course of hot rolling, and its product shows favorable mechanical performance and good shape memory effect, can require to be used for fields such as engineering according to reality.
Description of drawings
Fig. 1 NiTiCrRE shape memory alloy is made the double-pass memory effect behind the sheet material
As seen from Figure 1, adopt the prepared shape memory alloy hot rolled material of NiTiCrRE that goes out of the inventive method, have good shape memory effect.
Embodiment
The NiTiCrRE blank of shape memory alloy is carried out 900 ℃, the homogenizing annealing of 6h, scale removal and rising head, once compression moulding is size 60mm * 70mm * 300mm on the 500T oil press, carries out hot rolling afterwards, rolling temperature is 910 ℃-700 ℃.
Plate hot rolling system process is as follows: thickness * width
Thickness 60mm * width 70mm-thickness 40mm * width 100mm rolling temperature is 910 ℃-860 ℃;
Thickness 40mm * width 100mm-thickness 24mm * width 130mm rolling temperature is 860 ℃-810 ℃;
Thickness 24mm * width 130mm-thickness 14mm * width 150mm rolling temperature is 810 ℃-780 ℃;
Thickness 14mm * width 150mm-thickness 10mm * width 165mm rolling temperature is 780 ℃-750 ℃;
Vacuum solid solution is handled, 850 ℃ of insulation 1～2h, shrend;
Thickness 10mm * width 165mm-thickness 6mm * width 180mm rolling temperature is 750 ℃-730 ℃;
Thickness 6mm * width 180mm-thickness 3mm * width 190mm rolling temperature is 730 ℃-710 ℃;
Thickness 3mm * width 190mm-thickness 1mm * width 200mm rolling temperature is 710 ℃-700 ℃;
Final size after the hot rolling system is: thickness 1mm, and width 200mm, length is not limit.Sheet material after the hot rolling carries out pickling, and carries out anneal, 660 ℃～750 ℃ of annealing temperatures, insulation 20～30min.
Adopt the inventive method to obtain the shape memory alloy hot rolled material of NiTiCrRE, do not ftracture in course of hot rolling, its product mechanical property is good, σ
b=970MPa, σ
0.2=577MPa, δ=13.6% shows good double-pass memory effect simultaneously, sees Fig. 1.
Claims (1)
1, the shape memory alloy hot rolled material, preparation method of a kind of NiTiCrRE, it is characterized in that: the NiTiCrRE blank of shape memory alloy is carried out 900 ℃, the homogenizing annealing of 6h, scale removal and rising head, once compression moulding is size 60mm * 70mm * 300mm on the 500T oil press, carries out hot rolling then, rolling temperature is 920 ℃-700 ℃, final size after rolling is: thickness 1mm, and width 200mm, length is not limit.To carry out a vacuum solid solution in the course of hot rolling and handle, 850 ℃ of insulation 1～2h, shrend.Sheet material after the hot rolling carries out pickling, and carries out anneal, 660 ℃～750 ℃ of annealing temperatures, insulation 20～30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100326503A CN101649430B (en) | 2009-06-30 | 2009-06-30 | NiTiCrRE shape memory alloy hot rolled board preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100326503A CN101649430B (en) | 2009-06-30 | 2009-06-30 | NiTiCrRE shape memory alloy hot rolled board preparation method |
Publications (2)
| Publication Number | Publication Date |
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| CN101649430A true CN101649430A (en) | 2010-02-17 |
| CN101649430B CN101649430B (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100326503A Expired - Fee Related CN101649430B (en) | 2009-06-30 | 2009-06-30 | NiTiCrRE shape memory alloy hot rolled board preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766834A (en) * | 2012-08-08 | 2012-11-07 | 镇江忆诺唯记忆合金有限公司 | Preparation method of NiTiVNd memory alloy hot rolling panel |
| CN103509988A (en) * | 2013-07-18 | 2014-01-15 | 南昌大学 | Polycrystalline Fe-Ni-Co-Al-Nb-B shape memory alloy with super elasticity and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6548013B2 (en) * | 2001-01-24 | 2003-04-15 | Scimed Life Systems, Inc. | Processing of particulate Ni-Ti alloy to achieve desired shape and properties |
| CN1219105C (en) * | 2003-09-26 | 2005-09-14 | 上海交通大学 | Micron fine-grained titanium-nickel alloy block material isodiametric corner extrusion preparing method |
-
2009
- 2009-06-30 CN CN2009100326503A patent/CN101649430B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766834A (en) * | 2012-08-08 | 2012-11-07 | 镇江忆诺唯记忆合金有限公司 | Preparation method of NiTiVNd memory alloy hot rolling panel |
| CN103509988A (en) * | 2013-07-18 | 2014-01-15 | 南昌大学 | Polycrystalline Fe-Ni-Co-Al-Nb-B shape memory alloy with super elasticity and preparation method thereof |
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| CN101649430B (en) | 2011-01-19 |
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Granted publication date: 20110119 Termination date: 20110630 |