CN102051538B - Wear-resistant titanium alloy material and preparation method thereof - Google Patents
Wear-resistant titanium alloy material and preparation method thereof Download PDFInfo
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- CN102051538B CN102051538B CN201110007443XA CN201110007443A CN102051538B CN 102051538 B CN102051538 B CN 102051538B CN 201110007443X A CN201110007443X A CN 201110007443XA CN 201110007443 A CN201110007443 A CN 201110007443A CN 102051538 B CN102051538 B CN 102051538B
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Abstract
The invention discloses a wear-resistant titanium alloy material and a preparation method thereof. The material adopts a titanium alloy as a substrate, and metal wire clusters formed by alloy-steel wires and iron wires are distributed in the substrate; the diameter of each alloy steel wire and the diameter of each iron wire are 1mm to 2 mm; in the material, the total length of the alloy steel wires and the total length of the iron wires are equal and the diameter of each metal wire cluster is 10cm to 15cm; and the volume percentage of the alloy-steel wires and the iron wires in the material is 10% to 35%. The wear-resistant titanium alloy material disclosed by the invention has higher wear resistance performance, low production cost and simple production technology.
Description
Technical field
The invention belongs to metal material field, relate to a kind of abrasion-resistant titanium alloy material and preparation method thereof.
Background technology
In metal material field, abrasion-resistant titanium alloy receives generally as low-cost high-abrasive material always and paying attention to.
CN200610067458.4 number application relates to a kind of titanium alloy and usefulness thereof.Consisting of of said titanium alloy: Al=3.5wt%～37wt%; V=0.02wt%～3.5wt%; Ni=0.05wt%～2wt%; The Ti=surplus.Its titanium alloy can also comprise 0.05wt%～24wt% Nb, 0.1wt%～5wt% Mn and be less than the Fe of 0.5wt%.But its tensile strength, line friction ratio and elongation are still lower, and the wear resisting property of this alloy haves much room for improvement.
Summary of the invention
The object of the invention is exactly to above-mentioned technological deficiency, and a kind of abrasion-resistant titanium alloy material is provided, and this material has good performance.
Another object of the present invention provides a kind of abrasion-resistant titanium alloy preparation methods, and this preparing method's technology is simple, and production cost is low, is suitable for suitability for industrialized production.
The objective of the invention is to realize through following technical scheme:
A kind of abrasion-resistant titanium alloy material; It is characterized in that: this material is matrix with the titanium alloy; The wire group that in matrix, is distributing and forming by alloy-steel wire and iron wire, used alloy-steel wire and iron wire diameter are 1-2mm, and the overall length of material medium alloy steel wire and iron wire is suitable; The diameter of wire group is 10-15cm, and the volume percent that two kinds of wires account for material is 10-35%;
The following chemical components in percentage by weight of titanium alloy substrate: A
lBe 1-1.5%, Cu is 4%～6%, and Zr is 0.02%～0.04%, and Gd is 1%～3%, and Si is 0.8%～1.5%, and all the other are Ti;
The following chemical components in percentage by weight of alloy-steel wire: C is 0.32%-0.45%; Cr is 4.75%-5.5%; Mo is 1.1%-1.75%; Si is 0.8%-1.2%
,All the other are Fe;
The following chemical components in percentage by weight of iron wire is: C is 0.05-0.09%, and Si is 0.2%～0.3%, and Mn is 0.25-0.35%, and < 0.02%, < 0.025%, all the other are Fe to S to P.
Also be distributed with the TiN particle in the said matrix.
A kind of abrasion-resistant titanium alloy preparation methods, it is characterized in that: it may further comprise the steps:
The preparation of alloy-steel wire and nitriding iron wire: cut-off is 0.32%-0.45% for 1-2mm, composition weight percentage: C directly respectively; Cr is 4.75%-5.5%; Mo is 1.1%-1.75%; Si is 0.8%-1.2%
,All the other are the alloy-steel wire of Fe; And diameter is that 1-2mm, composition weight percentage: C are 0.05-0.09%, and Si is 0.2%～0.3%, and Mn is 0.25-0.35%, P<0.02%, S<0.025%, all the other are the iron wire of Fe; The two overall length of alloy-steel wire and iron wire is suitable, and the volume percent that two kinds of wires of alloy-steel wire and iron wire account for material is 10-35%; Carry out nitriding Processing of Preparation nitriding iron wire on the iron wire surface by ordinary method; The thickness of nitrided case is the 200-300 micron;
By the ordinary method of cleaning ball production above-mentioned alloy-steel wire and nitriding iron wire are respectively got a rhizoid and form globular mixing mariages wire group; Wire group's diameter is 10-15cm; Number of metal silk group is put into casting mold mo(u)ld bottom half die cavity; The tightness of wire group guarantees that by the volume percent decision that alloy-steel wire and iron wire account for material altogether wire group just in time piles casting mold; After deploying, the mo(u)ld top half of casting mold is placed on the mo(u)ld bottom half, the cast of alloy liquid is waited in the mould assembling back that finishes;
The preparation of titanium alloy substrate: percentage composition A by weight
lBe 1-1.5%, Cu is 4%～6%, and Zr is 0.02%～0.04%, and Gd is 1%～3%, and Si is 0.8%～1.5%, and all the other are prepared burden for Ti; Titanium alloy substrate is melted preparation titanium alloy liquid in induction furnace, temperature of fusion is 1690-1720 ℃;
Above-mentioned titanium alloy liquid is poured into the dry sand casting mold that wire group is housed, and liquid alloy liquid surrounds alloy-steel wire and nitriding iron wire, cooled and solidified then, and obtaining with the titanium alloy is the high-abrasive material that wherein is distributed with wire group of matrix.
It is following that the present invention compares the beneficial effect of prior art:
(1) alloy-steel wire in the abrasion-resistant titanium alloy material of the present invention and iron wire self have suitable intensity and higher wear-resisting.The high-temperature liquid state titanium is with alloy part steel wire and iron wire fusion in cast, and the N in alloy-steel wire and iron wire and the iron wire nitrided case, Cr, Fe get in the liquid titanium, forms TiN, TiCr with titanium
2, TiFe
2Deng special compound, disperse strengthens titanium alloy; Not molten alloy-steel wire and iron wire and titanium alloy metallurgical binding play the toughness reinforcing effect of enhancing to titanium alloy, and the effect that has wear-resisting enhancement, particularly TiN simultaneously is maximum.Cu and Si form Ti in titanium
3Si and CuTi
2 ,Also titanium alloy is played and strengthen toughness reinforcing and attrition resistant effect.
(2) Zr in the material and Gd and Ti do not form compound
,The tissue of titanium alloy is had the effect of remarkable refinement, help material to strengthen toughness reinforcing and attrition resistant raising.
(3) P, S are impurity in the material of the present invention, are controlled at the scope of permission.
(4) alloy material cost of the present invention is low, and preparation technology is easy, and production cost is low, and the alloy material performance of production is good, and is convenient to very much suitability for industrialized production.
(5) titanium alloy of the present invention is as wearable/friction material; Have low-gravity, non-hygroscopic, corrosion-resistant, anti-high dust atmosphere and attrition resistant characteristics; Be applicable to the occasion that weight, wear resisting property, resistance to elevated temperatures, corrosion resistance nature and moment quality are had higher requirements, be particularly suited under complete unlubricated DRY SLIDING, using.
Alloy property of the present invention is seen table 1.
Description of drawings
The wire that Fig. 1 makes for the embodiment of the invention one strengthens the metallographic structure that contains gadolinium abrasion-resistant titanium alloy material.
Fig. 1 can see at titanium alloy and combining well with wire.
Embodiment
Each embodiment is only with of the present invention the explaining of opposing below
, and weight percent wherein all can change weight g, kg or other weight unit into.Diameter among each embodiment is commercial for the 1-2mm wire, and nitriding is handled by oneself.
Embodiment one:
The following chemical components in percentage by weight of titanium alloy substrate: A
lBe 1%, Cu is 4%, and Zr is 0.02%, and Gd is 1%, and Si is 0.8%, and all the other are Ti.
The following chemical components in percentage by weight of alloy-steel wire: C is 0.32%; Cr is 4.75%; Mo is 1.1%; Si is 0.8%
,All the other are Fe; The diameter of this alloy-steel wire is 1mm.
The following chemical components in percentage by weight of iron wire: C is 0.05%, and Si is 0.2%, and Mn is 0.25%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 1mm.
The two overall length of material medium alloy steel wire and iron wire is suitable, and the volume percent that two kinds of wires account for material is 10%.
Get iron wire and carry out nitriding Processing of Preparation nitriding iron wire on its surface by ordinary method: the thickness of nitrided case is 200 microns.
Ordinary method by cleaning ball production is respectively got (the two rhizoids moulding simultaneously of rhizoid formation globular mixing mariages wire group with above-mentioned alloy-steel wire and nitriding iron wire; Form mariages wire group; Moulding can or be claimed the method for steel wire lump by the cleaning ball of the usefulness that washes the dishes), wire group diameter is 15cm, and number of metal silk group is put into casting mold mo(u)ld bottom half die cavity; The two accounts for the volume percent decision of material to the tightness of wire group altogether by alloy-steel wire and iron wire, guarantees that wire is rolled into a ball just in time to pile casting mold; After deploying, the mo(u)ld top half of casting mold is placed on the mo(u)ld bottom half, the cast of alloy liquid is waited in the mould assembling back that finishes;
Titanium alloy substrate is melted preparation titanium alloy liquid in induction furnace, temperature of fusion is 1690-1720 ℃;
Above-mentioned titanium alloy liquid is poured into the dry sand casting mold that wire group is housed, and liquid alloy liquid surrounds alloy-steel wire and nitriding iron wire, cooled and solidified then, and obtaining with the titanium alloy is the high-abrasive material that wherein is distributed with wire group of matrix.
Embodiment two:
The following chemical components in percentage by weight of titanium alloy substrate: A
lBe 1.5%, Cu is 6%, and Zr is 0.04%, and Gd is 3%, and Si is 1.5%, and all the other are Ti.
The following chemical components in percentage by weight of alloy-steel wire: C is 0.45%; Cr is 5.5%; Mo is 1.75%; Si is 1.2%
,All the other are Fe; The diameter of this alloy-steel wire is 2mm.
The following chemical components in percentage by weight of iron wire: C is 0.09%, and Si is 0.3%, and Mn is 0.35%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 2mm.
The two overall length of alloy-steel wire and iron wire is suitable, and the volume percent that two kinds of wires account for material is 35%.Get iron wire and carry out nitriding Processing of Preparation nitriding iron wire on its surface according to ordinary method: the thickness of nitrided case is 300 microns.Press the ordinary method making alloy-steel wire of cleaning ball production and the mariages wire group that two kinds of wires of nitriding iron wire mix, wire group diameter is 10cm.
The preparation process is with embodiment one.
Embodiment three:
The following chemical components in percentage by weight of titanium alloy substrate: A
lBe 1.2%, Cu is 5%, and Zr is 0.03%, and Gd is 2%, and Si is 1%, and all the other are Ti.
The following chemical components in percentage by weight of alloy-steel wire: C is 0.39%; Cr is 4.9%; Mo is 1.5%; Si is 0.9%
,All the other are Fe; The diameter of this alloy-steel wire is 1.5mm.
The following chemical components in percentage by weight of iron wire: C is 0.07%, and Si is 0.25%, and Mn is 0.3%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 1.5mm.
The two overall length of alloy-steel wire and iron wire is suitable, and the volume percent that two kinds of wires account for material is 20%.
Get iron wire and carry out nitriding Processing of Preparation nitriding iron wire on its surface according to ordinary method: the thickness of nitrided case is 250 microns.Press the ordinary method of cleaning ball production and make the mariages wire group that two kinds of wires mix, wire group diameter is 15cm.
The preparation process is with embodiment one.
The comparative example four: proportioning raw materials is within the scope of the present invention instance not
The following chemical components in percentage by weight of titanium alloy substrate: A
lBe 0.5%, Cu is 3%, and Zr is 0.01%, and Gd is 0.43%, and Si is 0.4%, and all the other are Ti.
The following chemical components in percentage by weight of alloy-steel wire: C is 0.3%; Cr is 4%; Mo is 1%; Si is 0.4%
,All the other are Fe; The diameter of this alloy-steel wire is 0.5mm.
The following chemical components in percentage by weight of iron wire: C is 0.04%, and Si is 0.1%, and Mn is 0.2%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 0.5mm.
The two overall length of alloy-steel wire and iron wire is suitable, and the volume percent that two kinds of wires account for material is 5%.
Iron wire does not carry out nitriding to be handled.Press the ordinary method of cleaning ball production and make the mariages wire group that two kinds of wires mix, wire group diameter is 15cm.
The preparation process is with embodiment one.
The comparative example five: proportioning raw materials is within the scope of the present invention instance not
The following chemical components in percentage by weight of titanium alloy substrate: A
lBe 2%, Cu is 7%, and Zr is 0.05%, and Gd is 4%, and Si is 2%, and all the other are Ti.
The following chemical components in percentage by weight of alloy-steel wire: C is 0.5%; Cr is 6%; Mo is 1.9%; Si is 2%
,All the other are Fe; The diameter of this alloy-steel wire is 3mm.
The following chemical components in percentage by weight of iron wire: C is 0.1%, and Si is 0.4%, and Mn is 0.4%, and < 0.02%, < 0.025%, all the other are Fe to S to P, and the diameter of this iron wire is 3mm.
The two overall length of alloy-steel wire and iron wire is suitable, and the volume percent that two kinds of wires account for material is 40%.Get iron wire and carry out nitriding Processing of Preparation nitriding iron wire according to ordinary method: the thickness of nitrided case is 400 microns.Press the ordinary method of cleaning ball production and make the mariages wire group that two kinds of wires mix, wire group diameter is 10cm.
The preparation process is with embodiment one.
Each performance of products contrast of table 1
Can find out that from last table the Al in the titanium alloy substrate of the present invention, Cu, Zr, Gd, Si increase the mechanical property that is beneficial to alloy and improve; But it is too much that some element such as Cu, Al cross the compound that forms at most, can weaken the toughness of alloy, therefore reduced wear resistance.Some element such as Zr, Gd are too much, cause the element waste.
Cr in the alloy-steel wire, Mo, Si, C increase the mechanical property that is beneficial to steel wire itself and improve; Cross the intensity and the toughness that can weaken steel wire at most.
Composition C in the iron wire, Si, Mn increase the mechanical property that is beneficial to alloy and improve; Cross at most and can weaken the wear-resisting of alloy.
The increase of alloy-steel wire and two kinds of wire volume percent of iron wire is beneficial to the raising of material wear-resistant.But too much, the titanium alloy substrate bag does not live alloy-steel wire and nitriding iron wire, and crackle appears in matrix, has then reduced the wear-resisting of material, therefore influences the resistance to corrosion of alloy.Like product 5.
Wire diameter is too little simultaneously, and surface-area is too big, is unfavorable for the dissolving of coating element in titanium water.Otherwise wire diameter is too big, and the density that in titanium alloy substrate, distributes reduces, and is unfavorable for the attrition resistant raising of material monolithic again.
Claims (1)
1. abrasion-resistant titanium alloy preparation methods, it is characterized in that: it may further comprise the steps:
The preparation of alloy-steel wire and nitriding iron wire: cut-off is 0.32%-0.45% for 1-2mm, composition weight percentage: C directly respectively; Cr is 4.75%-5.5%; Mo is 1.1%-1.75%; Si is 0.8%-1.2%
,All the other are the alloy-steel wire of Fe; And diameter is that 1-2mm, composition weight percentage: C are 0.05-0.09%, and Si is 0.2%～0.3%, and Mn is 0.25-0.35%, P<0.02%, S<0.025%, all the other are the iron wire of Fe; The two overall length of alloy-steel wire and iron wire is suitable, and the volume percent that control alloy-steel wire and two kinds of wires of iron wire account for material is 10-35%; Carry out nitriding Processing of Preparation nitriding iron wire on the iron wire surface by ordinary method; The thickness of nitrided case is the 200-300 micron;
By the ordinary method of cleaning ball production above-mentioned alloy-steel wire and nitriding iron wire are respectively got a rhizoid and form globular mixing mariages wire group; Wire group's diameter is 10-15cm; Number of metal silk group is put into dry sand casting mold mo(u)ld bottom half die cavity; The tightness of wire group guarantees that by the volume percent decision that alloy-steel wire and iron wire account for material altogether wire group just in time piles the dry sand casting mold; After deploying, the mo(u)ld top half of dry sand casting mold is placed on the mo(u)ld bottom half, the cast of alloy liquid is waited in the mould assembling back that finishes;
The preparation of titanium alloy substrate: percentage composition A by weight
lBe 1-1.5%, Cu is 4%～6%, and Zr is 0.02%～0.04%, and Gd is 1%～3%, and Si is 0.8%～1.5%, and all the other are prepared burden for Ti; Titanium alloy substrate is melted preparation titanium alloy liquid in induction furnace, temperature of fusion is 1690-1720 ℃;
Above-mentioned titanium alloy liquid is poured into the dry sand casting mold that wire group is housed, and liquid alloy liquid surrounds alloy-steel wire and nitriding iron wire, cooled and solidified then, and obtaining with the titanium alloy is the high-abrasive material that wherein is distributed with wire group of matrix.
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| JP6329088B2 (en) * | 2015-01-30 | 2018-05-23 | 株式会社シマノ | Brake pad for bicycle and method for manufacturing the same |
| CN106282662A (en) * | 2016-08-31 | 2017-01-04 | 南京惠德机械有限公司 | A kind of corrosion-resistant fixture |
| CN107190178B (en) * | 2017-05-10 | 2019-01-15 | 中南大学 | A kind of titanium composite material and preparation method thereof |
| CN107893175A (en) * | 2017-11-14 | 2018-04-10 | 黄林海 | One kind is used for CCl4Titanium alloy material of liquid absorption case closure and preparation method thereof |
Citations (4)
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|---|---|---|---|---|
| US5961030A (en) * | 1997-11-05 | 1999-10-05 | The United States Of America As Represented By The Secretary Of The Air Force | Using phosphorus compounds to protect carbon and silicon carbide from reacting with titanium alloys |
| CN101012540A (en) * | 2007-02-14 | 2007-08-08 | 西安建筑科技大学 | Preparing technique of gas carburizing carbonide silk net metal-based composite material |
| CN101024872A (en) * | 2007-02-14 | 2007-08-29 | 西安建筑科技大学 | Process for preparing active carbon carbonate wire-net metal base composite material |
| CN101029377A (en) * | 2007-02-14 | 2007-09-05 | 西安建筑科技大学 | Production of titanium nitride wire mesh metal-based composite material |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5961030A (en) * | 1997-11-05 | 1999-10-05 | The United States Of America As Represented By The Secretary Of The Air Force | Using phosphorus compounds to protect carbon and silicon carbide from reacting with titanium alloys |
| CN101012540A (en) * | 2007-02-14 | 2007-08-08 | 西安建筑科技大学 | Preparing technique of gas carburizing carbonide silk net metal-based composite material |
| CN101024872A (en) * | 2007-02-14 | 2007-08-29 | 西安建筑科技大学 | Process for preparing active carbon carbonate wire-net metal base composite material |
| CN101029377A (en) * | 2007-02-14 | 2007-09-05 | 西安建筑科技大学 | Production of titanium nitride wire mesh metal-based composite material |
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Effective date of registration: 20151028 Address after: 211600 No. 13, health Road, Jinhu County, Jiangsu, Huaian Patentee after: Jinhu Zhongbo IOT Technology Co., Ltd. Address before: 210044 Nanjing City, Pukou Province, Nanjing Road, No. 219, No. six, No. Patentee before: Nanjing University of Information Science and Technology |
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