CN1087683A - High-temperature wearable Ni 3Al base alloy - Google Patents
High-temperature wearable Ni 3Al base alloy Download PDFInfo
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- CN1087683A CN1087683A CN92113314A CN92113314A CN1087683A CN 1087683 A CN1087683 A CN 1087683A CN 92113314 A CN92113314 A CN 92113314A CN 92113314 A CN92113314 A CN 92113314A CN 1087683 A CN1087683 A CN 1087683A
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Abstract
The invention provides a kind of high-temperature wearable Ni
3Al base alloy.Mainly be applicable to high-temperature wearable or structured material.The chemical ingredients of alloy is (at%): Al 15.0～16.5%, Zr1.0～2.5%, and Cr7.5～8.5%, Mn0.4～0.6%, Ti0.8～1.0%, B0.2～0.5%, C0.4～0.6%, surplus is Ni.The present invention not only has good room temperature and high-temp plastic, and has higher high temperature strength, hardness and high-temperature oxidation resistance, and simultaneously, machine-shaping property is good, and wear resisting property is good under the high temperature, can be used as furnace bottom roll, roll and other high-temperature structural material.
Description
The invention belongs to Ni
3Al is the alloy of base.High-temperature wearable or structured material in mainly being applicable to.
Ni
3Al is a kind of intermetallic compound, and the past is used as a kind of High-Temperature Strengthening of nickel-base alloy always mutually.Ni in the superalloy that has
3The V/V mark of Al surpasses 70%.Polycrystalline Ni
3The disadvantage of Al is very crisp under the room temperature.
Ni
3Al base alloy is the metallic compound structured material that grew up in recent years.Because with compound mode bonding, therefore, characteristics such as existing stupalith is anti-corrosion, wear-resisting the peculiar performance such as easily shape of metallic substance is arranged again, but temperature-room type plasticity are poor between the atoms metal of such alloy.
In the prior art, in order to improve Ni
3Al base alloy at room temperature plasticity and medium and high temperature strength except adding a small amount of B, have also successively been tested adding Cr, Zr.B can significantly improve Ni
3Al base alloy at room temperature plasticity adds the dynamic plasticity that a certain amount of Cr not only can improve 600～800 ℃ of temperature ranges, also can improve the resistance of oxidation of this temperature range, and Zr can improve temperature-room type plasticity and hot strength.Even so, these alloys are used desired over-all properties apart from industrialness and are still had certain distance.Particularly as in high-temperature and wear-proof, its room temperature hardness and middle hot hardness are all not enough.For example, existing Ni
3The room temperature strength of Al base alloy IC-218LZr, IC-50, IC-221M is still very low, and room temperature hardness is HRC28～32 only, and hardness is less than HRC45(Material Science ﹠amp after the work hardening; Engineering A153(1992), 712～721).In addition, the high-temp plastic of these alloys, hot strength and high temperature process performance all relatively poor (US5006308, US4731221).
The object of the present invention is to provide a kind of existing good room temperature and high-temp plastic, the high-temperature wearable Ni of higher high temperature strength and high-temperature oxidation resistance is arranged again
3Al base alloy.
At above-mentioned purpose, main technical schemes of the present invention is the Ni at the existing Cr of adding, Zr, B
3On the basis of Al base alloy, add Mn, Ti, C element, so that further improve the intensity under room temperature and high temperature and the plasticity of alloy, and high-temperature oxidation resistance and shape performance.
For this reason, high-temperature wearable Ni of the present invention
3The chemical ingredients (at%) of Al base alloy is:
Al 15.0～16.5%, and Zr 1.0～2.5%, and Cr 7.5～8.5%, and Mn 0.4～0.6%, and Ti 0.8～1.0%, and B 0.2～0.5%, and C 0.4～0.6%, and surplus is Ni.
In mentioned component, Cr is the main alloy element that improves alloy high-temp plasticity and high-temperature oxidation resistance, and is comparatively suitable when its content is 8% left and right sides; The effect of B is still and improves temperature-room type plasticity, and preferable B content range is 0.2～0.5%; The Zr of adding 1.0～2.5% can significantly improve temperature-room type plasticity and hot strength; The compound action of B and Zr can obtain better effect; The main effect of Mn is a crystal grain thinning, improves comprehensive mechanical properties such as intensity, and its content is advisable with 0.4～0.6%; The effect that adds Ti is the substitute element as Al on the one hand, forms Ni with Ni
3Ti strengthens matrix, and on the other hand, the C of part Ti and adding forms TiC hard point, improves hot hardness and high temperature abrasion resistance.
Alloy of the present invention can adopt antivacuum or vacuum induction furnace smelting, adopts the direct cast form of precision casting, or cold roll forming.Also can adopt the method for centrifugal casting to be shaped.
In above-mentioned composition range, Ni of the present invention
3Al base alloy at room temperature tensile strength can reach more than the 1000MPa, the tensile strength of 600 ℃ of temperature is still more than 800MPa, unit elongation δ under unit elongation δ 〉=25%, the 600 ℃ temperature under the room temperature is still more than 20%, and the hot hardness (through work hardening) under 600 ℃ of temperature is still greater than HV400.Room temperature hardness (through work hardening) is more than HV500.The present invention also has bigger work hardening coefficient and greater than 1100 ℃ recrystallization temperature, thereby has the excellent abrasive energy.
Compared with prior art, alloy of the present invention not only at room temperature has good hardness, intensity and plasticity, and under 600 ℃～800 ℃ high temperature, still has higher hardness, intensity and plasticity.Be a kind of promising middle high-temperature and wear-proof and structured material.
Embodiment
According to described chemical ingredients, on vacuum induction furnace, smelted 5 stoves Ni of the present invention
3Al base alloy, its concrete chemical ingredients is as described in Table 1.Behind casting forming, take a sample respectively through the surface working sclerosis, carry out the hardness test under the differing temps.Tension specimen is made preceding through solution treatment.Tension test and wearing test gained result list in table 2 and table 3 respectively.
In order to contrast, a stove comparative alloy and a stove cold hard cast-iron (comparative alloy 2) have also been smelted under the same conditions respectively.Its chemical ingredients and relevant performance also are respectively in table 1, table 2 and table 3.
The chemical ingredients (at%) of table 1 alloy of the present invention and comparative alloy
| Heat (batch) number | Al | Cr | Zr | B | Mn | C | Ti | Ni | |
| The present invention | 1 2 3 4 5 | 16.2 15.0 16.5 16.4 15.5 | 7.8 7.5 8.2 8.4 7.8 | 2.0 1.8 1.5 1.3 1.5 | 0.5 0.4 0.4 0.3 0.2 | 0.54 0.58 0.45 0.50 0.46 | 0.50 0.55 0.40 0.43 0.50 | 0.9 1.0 0.85 0.85 0.92 | Yu Yu is surplus surplus |
| Comparative alloy 1 | 18.0 | 8.0 | 2.0 | 0.1 | Surplus | ||||
| Comparative alloy 2 | － | 0.278 | - | Si 0.858 | 0.438 | 13.65 | Cu 0.15 | Fe is surplus | |
The hardness and the tensile property of table 2 alloy of the present invention and comparative alloy
| Heat (batch) number | Hardness (HV) | Tensile property | |||||||||
| Test temperature ℃ | Room temperature | 600℃ | |||||||||
| 200 | 400 | 600 | 700 | σ bMPa | σ 02MPa | δ % | σ bMPa | σ 02MPa | δ % | ||
| The present invention | 1 2 3 4 5 | 528 520 517 | 505 516 501 | 422 418 401 | 420 423 403 | 1050 1020 1010 1120 1100 | 595 580 585 570 560 | 30.6 35.0 28.2 27.2 26.5 | 940 950 900 890 870 | 730 720 760 701 690 | 25.4 22.5 30.2 28.6 22.8 |
| Comparative alloy 1 | 344 | 308 | 302 | 288 | |||||||
| Comparative alloy 2 | 661 | 539 | 346 | 186 | |||||||
Annotate: alloy of the present invention and comparative alloy 1 have been carried out the surface working hardening treatment before carrying out hardness test, comparative alloy 2 is not done the surface working hardening treatment.
The wear resistance of table 3 alloy of the present invention and cold hard cast-iron
| Alloy | 600 ℃ of wear weight loss (g/M 2·h) | 800 ℃ of wear weight loss (g/M 2·h) |
| Alloy heat (batch) number 1 of the present invention | 74 | 85 |
| Comparative alloy 2 | 450 | 220 |
Annotate: pair of friction components are soft steel and tested alloys.
Claims (1)
- A kind of high-temperature wearable Ni 3Al base alloy is characterized in that the chemical ingredients (at%) of alloy is:Al15.0～16.5%, Zr1.0～2.5%, Cr7.5～8.5%, Mn0.4～0.6%, Ti0.8～1.0%, B0.2～0.5%, C0.4～0.6%, surplus is Ni.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113314 CN1029524C (en) | 1992-11-30 | 1992-11-30 | High-temp. wear-resisting NI3AL-base alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113314 CN1029524C (en) | 1992-11-30 | 1992-11-30 | High-temp. wear-resisting NI3AL-base alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1087683A true CN1087683A (en) | 1994-06-08 |
| CN1029524C CN1029524C (en) | 1995-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113314 Expired - Fee Related CN1029524C (en) | 1992-11-30 | 1992-11-30 | High-temp. wear-resisting NI3AL-base alloy |
Country Status (1)
| Country | Link |
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| CN (1) | CN1029524C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109179C (en) * | 1998-10-08 | 2003-05-21 | 富士乌兹克斯株式会社 | Mushroom like valve member made of aluminium or aluminium alloy, and making method thereof |
| US7052018B2 (en) | 2001-03-27 | 2006-05-30 | Koncentra Marine & Power Ab | Piston ring having wear resistant composition |
| CN101463439B (en) * | 2007-12-18 | 2010-09-01 | 中国科学院兰州化学物理研究所 | Preparation of nickel-aluminum intermetallic compound based high temperature self-lubricating composite material |
| CN102189337A (en) * | 2011-02-14 | 2011-09-21 | 北京工业大学 | Laser crack-free fusion welding repair method for Ni3Al-based alloy casting |
| CN104532231A (en) * | 2014-12-25 | 2015-04-22 | 中国钢研科技集团有限公司 | Method for preparing composite coating Ni3Al/Cr3C2 by use of laser cladding technique |
| CN105331851A (en) * | 2015-12-15 | 2016-02-17 | 常熟市良益金属材料有限公司 | Abrasion and oxidation resistant alloy material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365153C (en) * | 2005-12-01 | 2008-01-30 | 哈尔滨工业大学 | In-situ self-generated reinforced Ni3Al composite and method for preparing same |
-
1992
- 1992-11-30 CN CN 92113314 patent/CN1029524C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109179C (en) * | 1998-10-08 | 2003-05-21 | 富士乌兹克斯株式会社 | Mushroom like valve member made of aluminium or aluminium alloy, and making method thereof |
| US7052018B2 (en) | 2001-03-27 | 2006-05-30 | Koncentra Marine & Power Ab | Piston ring having wear resistant composition |
| CN101463439B (en) * | 2007-12-18 | 2010-09-01 | 中国科学院兰州化学物理研究所 | Preparation of nickel-aluminum intermetallic compound based high temperature self-lubricating composite material |
| CN102189337A (en) * | 2011-02-14 | 2011-09-21 | 北京工业大学 | Laser crack-free fusion welding repair method for Ni3Al-based alloy casting |
| CN102189337B (en) * | 2011-02-14 | 2014-04-30 | 北京工业大学 | Laser crack-free fusion welding repair method for Ni3Al-based alloy casting |
| CN104532231A (en) * | 2014-12-25 | 2015-04-22 | 中国钢研科技集团有限公司 | Method for preparing composite coating Ni3Al/Cr3C2 by use of laser cladding technique |
| CN104532231B (en) * | 2014-12-25 | 2017-08-22 | 中国钢研科技集团有限公司 | The method that Ni3Al/Cr3C2 composite coatings are prepared using laser melting and coating technique |
| CN105331851A (en) * | 2015-12-15 | 2016-02-17 | 常熟市良益金属材料有限公司 | Abrasion and oxidation resistant alloy material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1029524C (en) | 1995-08-16 |
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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Owner name: BEIJING IRON AND STEEL GAONA TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GENERAL RESEARCH INST. OF IRON AND STEEL, MINISTRY OF METALLURGICAL INDUSTRY Effective date: 20031218 |
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Effective date of registration: 20031218 Address after: 100081 No. 76 South College Road, Beijing Patentee after: Beijing steel Gaona technology limited liability company Address before: 100081 No. 76 South College Road, Beijing Patentee before: Iron and Steel Central Research Institute of Ministry of Metallurgical Industry |
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Granted publication date: 19950816 Termination date: 20091230 |