CN104313371A - Method for preparing magnesium matrix composite semisolid slurry by adopting ultrasonic in situ synthesis - Google Patents
Method for preparing magnesium matrix composite semisolid slurry by adopting ultrasonic in situ synthesis Download PDFInfo
- Publication number
- CN104313371A CN104313371A CN201410507971.5A CN201410507971A CN104313371A CN 104313371 A CN104313371 A CN 104313371A CN 201410507971 A CN201410507971 A CN 201410507971A CN 104313371 A CN104313371 A CN 104313371A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- alloy
- melt
- semisolid slurry
- matrix composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a method for preparing magnesium matrix composite semisolid slurry by adopting ultrasonic in situ synthesis. The method for preparing the magnesium matrix composite semisolid slurry by adopting the ultrasonic in situ synthesis is characterized by comprising the following steps: firstly adding a Mg-Al-Zn alloy into a crucible of a smelting furnace, after the matrix alloy is molten, adding a Mg-Y intermediate alloy, regulating furnace temperature to be 850 DEG C, turning off a power supply of the smelting furnace, placing an ultrasonic amplitude transformer probe into a melt for ultrasonic treatment, standing after ultrasonic treatment is finished, and cooling to the temperature of 584-570 DEG C, and carrying out ultrasonic vibration on the melt by adopting a continuous ultrasonic method, so that Al2Y particle reinforced Mg-Al-Zn composite semisolid slurry is obtained, and a covering agent is adopted and a mixed gas of SF6 and CO2 is introduced for protection in a preparation process. The prepared magnesium matrix composite semisolid slurry is uniform in structure, solid particles are small, round and normal, the semisolid rheological forming requirement of a composite can be met, a technology is simple, operation is easy, cost is low, and energy conservation and environmental protection are realized.
Description
Technical field
The invention belongs to metal-base composites technical field, relate to a kind of preparation method of semisolid state slurry thereof.
Background technology
Enhancing with environmental consciousness energy-conservation along with people, magnesium alloy, as one of the lightest structural metallic materials, is more and more favored.But because magnesium alloy strength is not high, the shortcomings such as high-temperature creep resistance difference, limit its range of application.In order to improve the over-all properties of magnesium alloy, expand the Application Areas of magnesium alloy and scope, introducing wild phase, to carry out complex intensifying to magnesium alloy be an important developing direction.Utilize XD method to prepare metal-base composites, in metallic matrix, the high rigidity of one or more relatively uniform dispersions of in-situ preparation, the wild phase of high elastic coefficient, can reach the object of reinforced metal matrix.Along with the development of semi-solid state forming technique, at present, the semi-solid rheological molding technology of magnesium base composite material is combined with ultrasonic in-situ techniques the attention being more and more subject to numerous scholar, and prepares qualified semi solid slurry and become key point for the rheological molding in later stage.The semi solid slurry that magnesium base composite material is prepared in ultrasonic vibration is a kind of novel method, by the optimization of ultrasonic processing parameter, reaches the object promoting the propagation of nucleus, crystal grain thinning and control solid phase particles size and roundness.Matrix material wild phase of the present invention is Al
2y intermetallic compound, has higher temperature of fusion (1748K), Young's modulus (158GPa), hardness (HV=645) and relatively low thermal expansivity (CTE=10 × 10
-6k
-1) and density (3.93g/cm
3) etc. feature, its performance and metallographic phase seemingly, are combined with basal body interface well, comparatively adopt other wild phase as TiB
2, TiAl
3and Mg
2matrix material performance in intensity and plasticity two prepared by Si etc. is all strengthened.And semi solid slurry homogeneous microstructure prepared by the present invention, solid phase particles is tiny, rounding, can meet the requirement of composite material semi-solid state rheological molding.Technique is simple, and easy to operate, cost is low, energy-conserving and environment-protective.
Summary of the invention
A kind of ultrasonic in-situ particle is the object of the present invention is to provide to strengthen Mg-Al-Zn composite material semi-solid state slurry preparation method.
Preparation method of the present invention is: first joined by Mg-Al-Zn alloy in the crucible in smelting furnace, after matrix alloy fusing, add Mg-Y master alloy, then furnace temperature is adjusted to 850 DEG C, then turn off smelting furnace power supply, ultrasonic amplitude transformer probe is put into melt, to ultrasonic melt, leave standstill after ultrasonic stopping, cooling to 584-570 DEG C, adopt continuous ultrasound method to carry out ultrasonic vibration to melt, prepare Al
2y particle reinforce Mg-Al-Zn composite material semi-solid state slurry.For preventing alloy oxidation, in preparation process, adopt insulating covering agent and logical SF
6and CO
2mixed gas is protected.
Y massfraction in described Mg-Y master alloy is 30%, and surplus is Mg; In Mg-Al-Zn alloy, the massfraction of Al is 6.0% ~ 9.2%, Zn is 0.2% ~ 0.54%, and surplus is Mg.
Insulating covering agent main component of the present invention and massfraction are: KCl is 45%, MgCl
2be 45%, CaF
2be 5%, BaCl
2be 5%.
Semi solid slurry homogeneous microstructure prepared by the present invention, solid phase particles is tiny, rounding, can meet the requirement of composite material semi-solid state rheological molding, and technique is simple, and easy to operate, cost is low, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the particle reinforce Mg-Al-Zn composite material semi-solid state slurry microstructure that under the invention process example 1 condition prepared by ultrasonic original position.
Embodiment
The present invention will be described further by following examples.
Embodiment 1.
The present embodiment is with AZ91 alloy (Al 9.163, Zn 0.538, Mn 0.218, Si 0.042, Fe 0.0028, Cu 0.0053, Be 0.0007, Ni 0.0056, surplus is Mg, massfraction, lower same) be matrix, the Mg-Y master alloy of bulk is broken into small-particle, with aluminium-foil paper wrap be preheating to 250 DEG C stand-by.Insulation after matrix alloy fusing, add Mg-Y master alloy, again furnace temperature is adjusted to 850 DEG C, turns off smelting furnace power supply, ultrasonic amplitude transformer probe is put into melt, to ultrasonic melt, leave standstill after ultrasonic stopping, leaving standstill after ultrasonic stopping, cooling to 584 DEG C, adopt continuous ultrasound method to carry out ultrasonic vibration to melt, prepare particle reinforce Al
2y/AZ91 magnesium-base composite material semi-solid state slurry.For preventing alloy oxidation, (insulating covering agent main component and massfraction are: KCl is 45%, MgCl to adopt insulating covering agent in preparation process
2be 45%, CaF
2be 5%, BaCl
2be 5%) and logical SF
6and CO
2mixed gas is protected.
Embodiment 2.
The present embodiment is with AZ61 alloy (Al 6.0, Zn 0.538, Mn 0.218, Si 0.1, Fe 0.005, Cu 0.005, Ni 0.05, Others0.3, surplus is Mg, massfraction, lower same) be matrix, the Mg-Y master alloy of bulk is broken into small-particle, with aluminium-foil paper wrap be preheating to 250 DEG C stand-by.Insulation after matrix alloy fusing, add Mg-Y master alloy, again furnace temperature is adjusted to 850 DEG C, turn off smelting furnace power supply, ultrasonic amplitude transformer probe is put into melt, to ultrasonic melt, leave standstill after ultrasonic stopping, cool to 570 DEG C, adopt continuous ultrasound method to carry out ultrasonic vibration to melt, prepare particle reinforce Al
2y/AZ61 magnesium base composite material semi solid slurry.For preventing alloy oxidation, (insulating covering agent main component and massfraction are: KCl is 45%, MgCl to adopt insulating covering agent in preparation process
2be 45%, CaF
2be 5%, BaCl
2be 5%) and logical SF
6and CO
2mixed gas is protected.
Fig. 1 is particle reinforce Mg-Al-Zn composite material semi-solid state slurry microstructure prepared by the ultrasonic original position of embodiment 1.Find out from figure, semi solid slurry homogeneous microstructure prepared by the present invention, solid phase particles is tiny, rounding, can meet the requirement of composite material semi-solid state rheological molding.
Claims (1)
1. a ultrasonic fabricated in situ prepares the method for magnesium-base composite material semi-solid state slurry, it is characterized in that first Mg-Al-Zn alloy being joined in the crucible in smelting furnace, after matrix alloy fusing, add Mg-Y master alloy, again furnace temperature is adjusted to 850 DEG C, then turn off smelting furnace power supply, ultrasonic amplitude transformer probe is put into melt, to ultrasonic melt, leave standstill after ultrasonic stopping, cool to 584-570 DEG C, adopt continuous ultrasound method to carry out ultrasonic vibration to melt, prepare Al
2y particle reinforce Mg-Al-Zn composite material semi-solid state slurry, adopts insulating covering agent and logical SF in preparation process
6and CO
2mixed gas is protected;
Y massfraction in described Mg-Y master alloy is 30%, and surplus is Mg; In Mg-Al-Zn alloy, the massfraction of Al is 6.0% ~ 9.2%, Zn is 0.2% ~ 0.54%, and surplus is Mg;
Described insulating covering agent main component and massfraction are: KCl is 45%, MgCl
2be 45%, CaF
2be 5%, BaCl
2be 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507971.5A CN104313371A (en) | 2014-09-29 | 2014-09-29 | Method for preparing magnesium matrix composite semisolid slurry by adopting ultrasonic in situ synthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507971.5A CN104313371A (en) | 2014-09-29 | 2014-09-29 | Method for preparing magnesium matrix composite semisolid slurry by adopting ultrasonic in situ synthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104313371A true CN104313371A (en) | 2015-01-28 |
Family
ID=52368678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410507971.5A Pending CN104313371A (en) | 2014-09-29 | 2014-09-29 | Method for preparing magnesium matrix composite semisolid slurry by adopting ultrasonic in situ synthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104313371A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234356A (en) * | 2015-07-14 | 2016-01-13 | 南昌大学 | Preparation method for aluminum alloy semi-solid slurry induced and impregnated by modificator |
| CN106048351A (en) * | 2016-08-04 | 2016-10-26 | 北京工业大学 | Preparation method of AIN particle-reinforced magnesium-based composite material |
| CN106399873A (en) * | 2016-09-09 | 2017-02-15 | 南昌大学 | Preparation method for whisker nanotube-reinforced magnesium matrix composite coated with aluminum oxide |
| CN109868371A (en) * | 2019-01-29 | 2019-06-11 | 大连交通大学 | The guard method of ultrasonic probe |
| CN111318656A (en) * | 2020-03-20 | 2020-06-23 | 辽宁瑞鸥新材料科技有限公司 | RbCl/BaCl2Mixed aerosol and method for preparing magnesium-based metal semisolid slurry by using same |
| CN112063904A (en) * | 2020-09-26 | 2020-12-11 | 兰州理工大学 | Semisolid Mg-Zn-Y-Al alloy slurry and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776396A (en) * | 2012-05-29 | 2012-11-14 | 南昌大学 | Preparation method of in-situ Mg2Si particle enhanced Mg-Al-Mn-Zn composite material semi-solid slurry |
| CN102787265A (en) * | 2012-07-27 | 2012-11-21 | 南昌大学 | Microstructure refinement method for in-situ Mg2Si particle reinforced Mg-Al-Mn-Zn composite material |
| CN103045892A (en) * | 2013-01-04 | 2013-04-17 | 南昌大学 | Preparation method of Al2Y particle reinforced magnesium matrix composite |
-
2014
- 2014-09-29 CN CN201410507971.5A patent/CN104313371A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776396A (en) * | 2012-05-29 | 2012-11-14 | 南昌大学 | Preparation method of in-situ Mg2Si particle enhanced Mg-Al-Mn-Zn composite material semi-solid slurry |
| CN102787265A (en) * | 2012-07-27 | 2012-11-21 | 南昌大学 | Microstructure refinement method for in-situ Mg2Si particle reinforced Mg-Al-Mn-Zn composite material |
| CN103045892A (en) * | 2013-01-04 | 2013-04-17 | 南昌大学 | Preparation method of Al2Y particle reinforced magnesium matrix composite |
Non-Patent Citations (2)
| Title |
|---|
| HUANG WENXIAN ET AL.: ""Preparation and theoretic study of semi-solid Al_2Y/AZ91 magnesium matrix composites slurry by ultrasonic vibration"", 《JOURNAL OF RARE EARTHS》 * |
| 黄文先等: ""高能超声与稀土钇复合作用对AZ91铸态组织的影响"", 《稀有金属材料与工程》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234356A (en) * | 2015-07-14 | 2016-01-13 | 南昌大学 | Preparation method for aluminum alloy semi-solid slurry induced and impregnated by modificator |
| CN105234356B (en) * | 2015-07-14 | 2017-05-03 | 南昌大学 | Preparation method for aluminum alloy semi-solid slurry induced and impregnated by modificator |
| CN106048351A (en) * | 2016-08-04 | 2016-10-26 | 北京工业大学 | Preparation method of AIN particle-reinforced magnesium-based composite material |
| CN106399873A (en) * | 2016-09-09 | 2017-02-15 | 南昌大学 | Preparation method for whisker nanotube-reinforced magnesium matrix composite coated with aluminum oxide |
| CN109868371A (en) * | 2019-01-29 | 2019-06-11 | 大连交通大学 | The guard method of ultrasonic probe |
| CN111318656A (en) * | 2020-03-20 | 2020-06-23 | 辽宁瑞鸥新材料科技有限公司 | RbCl/BaCl2Mixed aerosol and method for preparing magnesium-based metal semisolid slurry by using same |
| CN111318656B (en) * | 2020-03-20 | 2021-07-16 | 辽宁瑞鸥新材料科技有限公司 | RbCl/BaCl2Mixed aerosol and method for preparing magnesium-based metal semisolid slurry by using same |
| CN112063904A (en) * | 2020-09-26 | 2020-12-11 | 兰州理工大学 | Semisolid Mg-Zn-Y-Al alloy slurry and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104313371A (en) | Method for preparing magnesium matrix composite semisolid slurry by adopting ultrasonic in situ synthesis | |
| Chen et al. | Hot deformation behavior and mechanism of hybrid aluminum-matrix composites reinforced with micro-SiC and nano-TiB2 | |
| Meenashisundaram et al. | Enhancing overall tensile and compressive response of pure Mg using nano-TiB2 particulates | |
| Du et al. | The hot deformation behavior and processing map of Ti–47.5 Al–Cr–V alloy | |
| Wang et al. | Mechanical behavior of Al-based matrix composites reinforced with Mg58Cu28. 5Gd11Ag2. 5 metallic glasses | |
| CN104152775B (en) | A kind of long-periodic structure strengthens magnesium alloy semisolid slurry and its preparation method | |
| CN102534275B (en) | TiNi alloy-based composite material with near-zero thermal expansion characteristic and preparation method thereof | |
| Chen et al. | Hot deformation characteristics and mechanism of PM 8009Al/SiC particle reinforced composites | |
| CN102787265A (en) | Microstructure refinement method for in-situ Mg2Si particle reinforced Mg-Al-Mn-Zn composite material | |
| Sun et al. | Compressive response and microstructural evolution of bimodal sized particulates reinforced (TiB+ La2O3)/Ti composites | |
| Shi et al. | Al–5.5 Mg–1.5 Li–0.5 Zn–0.07 Sc–0.07 Zr alloy produced by gravity casting and heat treatment processing | |
| Zhong et al. | Microstructure and mechanical properties of in situ TiB2/7055 composites synthesized by direct magnetochemistry melt reaction | |
| Liu et al. | Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration | |
| Feng et al. | High strength and plasticity TiBw/TA15 composites with a novel columnar network structure | |
| Zhang et al. | Understanding the microstructural evolution and strengthening mechanism of Al/Mg bimetallic interface via the introduction of Y | |
| CN102776396B (en) | Preparation method of in-situ Mg2Si particle enhanced Mg-Al-Mn-Zn composite material semi-solid slurry | |
| CN104313372A (en) | Method for preparing magnesium matrix composite semisolid slurry by adopting mechanical stirring in situ synthesis | |
| Zhang et al. | Effect of asymmetrical deformation on the microstructure evolution of semisolid AZ91D alloy | |
| CN103045892B (en) | Preparation method of Al2Y particle reinforced magnesium matrix composite | |
| CN102534311A (en) | Aluminium calcium carbon grain refiner for Mg-Al series magnesium alloy and preparation method and application thereof | |
| CN101748300B (en) | Method for preparing Mg2Si reinforced magnesium matrix composites | |
| Soepriyanto et al. | Effect of ZnO nanoparticles to mechanical properties of thixoformed Mg-Al-Zn alloy | |
| CN104294070B (en) | A kind of low-temperature sintering preparation is containing the method for Mg aluminium alloy | |
| Zhang et al. | Microstructures and mechanical properties of quasicrystal reinforced Mg matrix composites | |
| CN104404327B (en) | The preparation method that a kind of in-situ nano grade particles strengthens magnesium base composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
|
| RJ01 | Rejection of invention patent application after publication |