CN108193140A - A kind of new opplication of porous iron-based marmem in friction material field - Google Patents
A kind of new opplication of porous iron-based marmem in friction material field Download PDFInfo
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- CN108193140A CN108193140A CN201711500986.9A CN201711500986A CN108193140A CN 108193140 A CN108193140 A CN 108193140A CN 201711500986 A CN201711500986 A CN 201711500986A CN 108193140 A CN108193140 A CN 108193140A
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- porous
- friction material
- material field
- 28mn6si
- new opplication
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/006—Making ferrous alloys compositions used for making ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Abstract
The invention discloses a kind of new opplication of porous iron-based marmem in friction material field.Specifically, by porous Fe 28Mn6Si Alloyapplications in friction material field, decalescence can be generated, microcosmic porous structure also has better thermal diffusivity.It is found by studying, using the porous Fe 28Mn6Si alloys after mechanical alloying, cold pressing, sintering, solution treatment, its martensite anti-phase height As is more much lower than the alloy anti-phase height of casting gained, stress-inducedεmartensite can be generated under room temperature, compared with less friction effect, conducive to decalescence when heating up.
Description
Technical field
The present invention relates to a kind of new opplication of porous iron-based marmem in friction material field, belong to friction material
Expect technical field.
Background technology
Heat dissipation is critical issue to braking system.Heat evacuation speed is slow, brake disc temperature can be caused to increase, braking ability
Decline.In order to preferably radiate, porous type, scribing line type and porous plus scribing line type have been developed on the basis of solid brake disc
Wait brake discs.Patent CN201710607222.3, CN201710533425.2, CN201710455865.0 etc. are absorbed in brake disc
Heat radiation structure design.On the one hand drilling and scribing line are conducive to heat dissipation and chip removal, on the other hand also reduce brake to a certain extent
The intensity of hull, and in brake block with being cut during its high-speed friction, brake block loss increase.
The material of brake disc mainly has gray cast iron, aluminium alloy, carbon fibre ceramics etc. on the market at present.Gray cast iron is at low cost, holds
Easily production, but the flake graphite in matrix is equivalent to sheet hole, be easy to cause the stress raisers of cast iron matrix, is braking
In the heating and temperature-fall period of disk repeatedly, there is the risk cracked.Aluminium alloy lightweight, heat conductivility is preferable, but aluminium alloy is cast
It is easier compared with cast iron casting flaw occur, and higher Wen Sheng cannot be born during making.Carbon fibre ceramic heat-dissipating performance and brake
Performance is good, but of high cost.Patent CN201710449438.1, CN201710672969.7 etc. using different aluminum alloy materials come
Make brake disc, with achieve the purpose that heat dissipation and it is wear-resisting；Patent CN201710508293.8 etc. focuses on the wearability of brake disc.It is right
For brake disc, important performance is mainly stable friction factor, geomery stability and wearability etc..Often at present
Cast iron brake disc, service life is longer, can travel and just need to change after tens of thousands of kilometers, thus stable friction factor and
Geomery stability is the aspect that we should more pay close attention to.
About porous metal material, there is preferable heat-sinking capability due to its larger surface area, it can be to a certain extent
Reduce the deformation in coefficient of thermal expansion and temperature-rise period, while porous structure also has buffering and energy-absorbing effect.Porous metals material
The preparation method of material has very much, such as casting, sedimentation, powder metallurgic method[1].Preparation for marmem, tradition
Smelting process easily generate component segregation, and generation the defects of mechanical alloying method is due to dislocation is conducive to the expansion of alloying element
It dissipates, and preferable homogeneity of ingredients can be kept[2]。
Bibliography：
[1] Zhang Xinping, Zhang Yupeng porous NiTi shape memory alloy progress investigation of materials journals, 2007,21
(6)：561-569.
[2] Xiao Zhu, Lee's week, Gong Shen wait mechanical alloyings to prepare the research material Leaders of marmem, and 2007,
21(5A)：121-122.
Invention content
The purpose of the present invention is porous iron-based marmem is applied in friction material field, decalescence is obtained
Effect and obtain preferable thermal diffusivity using its microcosmic porous structure.By the study found that using mechanical alloying,
Porous Fe 28Mn6Si alloys after cold pressing, sintering, solution treatment, the alloy of martensite anti-phase height As ratios casting gained
Anti-phase height is much lower, stress-inducedεmartensite can be generated under room temperature, compared with less friction effect, conducive to phase when heating up
Changeable heat-absorbing.
In order to achieve the above object, the technical solution adopted by the present invention is as follows：
New opplication of the porous iron-based marmem as heat radiator material in friction material field；
The porous iron-based marmem is porous Fe 28Mn6Si alloys；
The porous Fe 28Mn6Si alloys are obtained by pure Fe, Mn, Si powder through mechanical alloying, cold pressing, sintering, solution treatment
.
Compared with prior art, the present invention the advantage with following substance：
1st, Fe, Mn, Si powder are cheap；
2nd, the preparation method of material is simple；
3rd, the anti-phase height of porous Fe 28Mn6Si alloys is low, and stress-inducedεmartensite can be generated by rubbing under room temperature, be risen
Reverse martensitic transformation heat absorption is generated when warm, the rising of friction material temperature can be slowed down；
4th, the subcircular micropore of porous Fe 28Mn6Si alloys increases surface area, can obtain preferable thermal diffusivity.
Description of the drawings
Fig. 1 is the micropore distribution map of 1100 DEG C of sintering 7 hours；
Fig. 2 is the micropore distribution map of 1200 DEG C of sintering 7 hours；
Fig. 3 is the metallographic structure figure of 1200 DEG C of sintering 7 hours；
Fig. 4 is that the X-ray diffractogram of 7 hours is sintered under different temperatures；
The metallographic structure figure of 750 DEG C of solution treatment 30 minutes after Fig. 5 is sintered 7 hours for 1200 DEG C；
Fig. 6 is the DSC curve figure of the compressive deformation sample of mechanical alloying 20 hours；
Fig. 7 is the DSC curve figure of the compressive deformation sample of mechanical alloying 50 hours.
Specific embodiment
Below by specific embodiment, the present invention is further illustrated, but following embodiments are not intended to limit model of the present invention
It encloses.
Embodiment 1
Pure Fe, Mn, Si powder is subjected to mechanical alloying under protection of argon gas, ratio of grinding media to material 27: 2, rotating speed 400r/min,
Time is 20h；A certain proportion of 3%PVA aqueous solutions are instilled in alloyed powder as binding agent, are ground, cold pressing, respectively 1000
DEG C, 1100 DEG C, be sintered at 1200 DEG C, soaking time 7h.Grain boundary corrosion corrosion will be used to observe micropore later：At 1000 DEG C
Under it is un-sintered completely, the hole shapes that 1100 DEG C of sintering obtain are irregular (Fig. 1), and 1200 DEG C of sintering obtain the subcirculars of the smooth of the edge
Micropore (Fig. 2).Its metallographic structure is observed using tissue corrosion corrosion later：It is not observed in the tissue of 1000 DEG C of sintered states
Martensite, observes micro martensite in the tissue of 1100 DEG C of sintered states, and martensite number in the tissue of 1200 DEG C of sintered states
It measures more (Fig. 3).This is consistent with XRD diagram (Fig. 4).These martensites are that the stress as caused by metallographic grinds and polishes lures
Send out ε martensites.In metallographic structure after solution treatment, since rapid cooling makes more austenites retain to room temperature, therefore the life that rubs
Into stress-inducedεmartensite quantity showed increased (Fig. 5).After solution treatment and compressive deformation, its DSC curve (Fig. 6) is surveyed,
The anti-phase height As of martensite is 55 DEG C, far below 140 DEG C of the alloy anti-phase height of casting gained.
Embodiment 2
Pure Fe, Mn, Si powder is subjected to mechanical alloying under protection of argon gas, ratio of grinding media to material 27: 2, rotating speed 400r/min,
Time is 50h；A certain proportion of 3%PVA aqueous solutions are instilled in alloyed powder as binding agent, are ground, cold pressing, at 1100 DEG C
Sintering, soaking time 7h.The metallographic structure figure rule of sintered state and solution treatment state is similar to Example 1.Through solution treatment
After compressive deformation, its DSC curve (Fig. 7) is surveyed, the anti-phase height As of martensite is 85 DEG C, far below the alloy of casting gained
140 DEG C of anti-phase height.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, and the present invention is also and unlimited
In the example above, for those skilled in the art, the invention may be variously modified and varied.It is every the present invention
Within spirit and spirit, any modification, equivalent replacement, improvement and so on should all belong to claim model of the invention
It encloses.
Claims (1)
1. a kind of new opplication of porous iron-based marmem as heat radiator material in friction material field；
The porous iron-based marmem is porous Fe 28Mn6Si alloys；
The porous Fe 28Mn6Si alloys are obtained by pure Fe, Mn, Si powder through mechanical alloying, cold pressing, sintering, solution treatment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500986.9A CN108193140B (en) | 2017-12-29 | 2017-12-29 | Application of porous iron-based shape memory alloy in field of friction materials |
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| CN201711500986.9A CN108193140B (en) | 2017-12-29 | 2017-12-29 | Application of porous iron-based shape memory alloy in field of friction materials |
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| CN108193140A true CN108193140A (en) | 2018-06-22 |
| CN108193140B CN108193140B (en) | 2020-07-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788154A (en) * | 2018-06-26 | 2018-11-13 | 华中科技大学 | A kind of 4D Method of printings of intelligence structure and products thereof with large deformation function |
| CN109175370A (en) * | 2018-11-01 | 2019-01-11 | 河北工业大学 | A kind of preparation method of the composite material with magnetic field regulation martensitic traoformation |
| CN109277561A (en) * | 2018-11-01 | 2019-01-29 | 河北工业大学 | A kind of preparation method of the composite material with regulation martensitic traoformation behavior |
| CN110983152A (en) * | 2019-12-27 | 2020-04-10 | 燕山大学 | Fe-Mn-Si-Cr-Ni based shape memory alloy and preparation method thereof |
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|---|---|---|---|---|
| JP2005290493A (en) * | 2004-03-31 | 2005-10-20 | National Institute Of Advanced Industrial & Technology | Method for producing foaming sintered body with high porosity |
| CN102031405A (en) * | 2010-12-09 | 2011-04-27 | 河北工业大学 | Preparation method of porous CuAlMn shape memory alloy |
| CN107043867A (en) * | 2017-01-09 | 2017-08-15 | 河北工业大学 | A kind of preparation method of porous copper-based shape memory alloy |
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2017
- 2017-12-29 CN CN201711500986.9A patent/CN108193140B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005290493A (en) * | 2004-03-31 | 2005-10-20 | National Institute Of Advanced Industrial & Technology | Method for producing foaming sintered body with high porosity |
| CN102031405A (en) * | 2010-12-09 | 2011-04-27 | 河北工业大学 | Preparation method of porous CuAlMn shape memory alloy |
| CN107043867A (en) * | 2017-01-09 | 2017-08-15 | 河北工业大学 | A kind of preparation method of porous copper-based shape memory alloy |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788154A (en) * | 2018-06-26 | 2018-11-13 | 华中科技大学 | A kind of 4D Method of printings of intelligence structure and products thereof with large deformation function |
| CN108788154B (en) * | 2018-06-26 | 2020-02-21 | 华中科技大学 | 4D printing method of intelligent structure with large deformation function and product thereof |
| CN109175370A (en) * | 2018-11-01 | 2019-01-11 | 河北工业大学 | A kind of preparation method of the composite material with magnetic field regulation martensitic traoformation |
| CN109277561A (en) * | 2018-11-01 | 2019-01-29 | 河北工业大学 | A kind of preparation method of the composite material with regulation martensitic traoformation behavior |
| CN109175370B (en) * | 2018-11-01 | 2020-05-12 | 河北工业大学 | Preparation method of composite material with magnetic field regulation and control of martensite phase transformation |
| CN109277561B (en) * | 2018-11-01 | 2020-05-12 | 河北工业大学 | Preparation method of composite material with martensite phase transformation regulation and control function |
| CN110983152A (en) * | 2019-12-27 | 2020-04-10 | 燕山大学 | Fe-Mn-Si-Cr-Ni based shape memory alloy and preparation method thereof |
| CN110983152B (en) * | 2019-12-27 | 2020-10-30 | 燕山大学 | Fe-Mn-Si-Cr-Ni based shape memory alloy and preparation method thereof |
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| CN108193140B (en) | 2020-07-07 |
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Application publication date: 20180622 Assignee: Xingtai energy technology (Yancheng) Co.,Ltd. Assignor: YANCHENG INSTITUTE OF TECHNOLOGY Contract record no.: X2022980028660 Denomination of invention: Application of a porous iron-based shape memory alloy in the field of friction materials Granted publication date: 20200707 License type: Common License Record date: 20221230 Application publication date: 20180622 Assignee: JIANGSU CHNV INSTRUMENT CONTROL ENGINEERING Co.,Ltd. Assignor: YANCHENG INSTITUTE OF TECHNOLOGY Contract record no.: X2022980028662 Denomination of invention: Application of a porous iron-based shape memory alloy in the field of friction materials Granted publication date: 20200707 License type: Common License Record date: 20221230 Application publication date: 20180622 Assignee: TUPING MACHINERY (JIANGSU) CO.,LTD. Assignor: YANCHENG INSTITUTE OF TECHNOLOGY Contract record no.: X2022980028663 Denomination of invention: Application of a porous iron-based shape memory alloy in the field of friction materials Granted publication date: 20200707 License type: Common License Record date: 20221230 |