CN105603240A - Method for preparing aluminum-free magnesium-based composite materials by aid of Al-Ti-X self-propagating systems - Google Patents

Method for preparing aluminum-free magnesium-based composite materials by aid of Al-Ti-X self-propagating systems Download PDF

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Publication number
CN105603240A
CN105603240A CN201610041932.XA CN201610041932A CN105603240A CN 105603240 A CN105603240 A CN 105603240A CN 201610041932 A CN201610041932 A CN 201610041932A CN 105603240 A CN105603240 A CN 105603240A
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magnesium
self
composite material
propagating
melt
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CN105603240B (en
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房灿峰
刘光旭
闻志恒
郝海
孟令刚
张兴国
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Dalian University of Technology
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Dalian University of Technology
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

The invention provides a method for preparing aluminum-free magnesium-based composite materials by the aid of Al-Ti-X (the X is an element B or an element C) self-propagating systems. By the aid of the method, the problem of incapability of applying existing Al-Ti-X self-propagating systems to aluminum-free magnesium alloy can be solved. The method includes preparation procedures of melting aluminum-free magnesium-based melt without Zr elements; selecting the Al-Ti-B or Al-Ti-C self-propagating systems and carrying out in-situ synthesis by the aid of self-propagating high-temperature synthesis processes to obtain magnesium-based composite material melt with reinforced particles; adding elements Y into the magnesium-based composite material melt to consume post-reaction residual Al of the Al-Ti-X self-propagating systems and eliminating poisoning effects of the residual Al on Zr; adding the Zr elements into the magnesium-based composite material melt; molding the composite material melt by means of casting to obtain the in-situ particle-reinforced aluminum-free magnesium-based composite materials. The method has the advantages of simple process, low production cost and applicability to mass production.

Description

A kind of Al-Ti-X of employing is from spreading the method for system preparation without magnalium based composites
Technical field
The invention belongs to metallurgical technology field, relate to a kind of preparation method of magnesium base composite material, particularlyA kind of Al-Ti-X of employing is from spreading the method for system preparation without magnalium based composites.
Background technology
Compared with magnesium alloy, magnesium base composite material has significantly excellent at aspects such as intensity, hardness and wearabilitiesGesture. In recent years, due to magnesium base composite material in loss of weight field huge on automobile and aircraft industry especiallyPotentiality, enjoy investigation of materials worker and producer's favor.
Due to relatively simple preparation technology and isotropic feature, particle reinforced magnesium base compound material becomesFor important research direction in magnesium base composite material. Traditionally, strengthening particle is directly to be introduced by additional modeIn alloy melt, the general interface large and particle and matrix of the size of particle is not very in this caseClean. Fortunately, these shortcomings can be improved by in-situ particle generation technique. Patent (the CN of Jiang Qichuan1138009C and CN1223691C) utilize Al-Ti-X prefabricated section in inside and outside certainly the spreading of magnesium alloy fused massHigh temperature synthetic technology is prepared containing in_situ TiC, TiB2Strengthen the magnesium base composite material of particle.
But as a kind of byproduct, remaining Al is Al-Ti-X prefabricated section self propagating high temperature synthetic reactionInevitable outcome; And in without Al magnesium alloy (being associated gold as Mg-Zn), conventionally adopt Zr as fining agent,If directly Al-Ti-X is introduced without in Al magnesium alloy from spreading system, can form Al3Zr causes Zr thin mutuallyAgent poisoning. Therefore, Al-Ti-X still cannot be applied so far from spreading system in without Al magnesium alloy.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of Al-Ti-X of employing and prepare without magnalium from spreading systemThe method of based composites, the method has solved Al-Ti-X and cannot be applied in without in almag from spreading systemProblem, eliminate Al-Ti-X from spreading the shadow of remaining Al to Zr poisoning effect in magnesium base composite material in systemRing, expand Al-Ti-X from spreading the application of system in magnesium base composite material.
In order to achieve the above object, technical scheme of the present invention is:
Adopt Al-Ti-X from spreading the method for system preparation without magnalium based composites, specifically comprise followingStep:
Step 1, Melting Magnesium base melt obtains magnesium liquid, but does not add Zr element;
Step 2, selects Al-Ti-X from spreading system, adopts self propagating high temperature synthetic method original position synthetic containing strengtheningThe magnesium base composite material melt of particle; Described Al-Ti-X is Al-Ti-B or Al-Ti-C from spreading system; InstituteThe mass ratio of the prefabricated section of the system that certainly spreads adding and magnesium base melt is 1～20 ﹕ 100. Described spreads certainlyHigh-temperature synthesis is: by prefabricated section in vacuum or have in the heater of high-purity argon protective atmosphere and light from spreadingAfter reaction, add in magnesium liquid; Or after prefabricated section is added in magnesium liquid, utilize magnesium liquid temp to light self-propagating reaction.
Step 3, adds Y (yttrium) element and fully stirs to magnesium base composite material melt, makes Y (yttrium)Element consumption is remaining Al element after spreading system reaction. The atomic ratio of Y element and remaining Al element is1.0～1.1﹕2；
Step 4, then Zr element is added in step 3 magnesium base composite material melt after treatment, and fully stirMix. After insulation leaves standstill, moulding by casting, obtains in-situ particle reinforced magnesium-based composite material.
The present invention is cleverly by the method for Y element alloying, at Al-Ti-X prefabricated section by certainly spreading heightTemperature synthetic method original position is synthetic containing strengthening after the magnesium base composite material melt of particle, adds Y element and eliminates Al-Ti-XRemaining Al in spreading system product, and form Al in magnesium base composite material matrix2Y、Al11Y3Deng havingBenefit phase, again due to Al2Y、Al11Y3Once generate and get final product stable existence Deng mutually, add in alloy subsequentlyCan there is not intoxicating phenomenon in Zr element, still can play good refining effect, thereby solve remaining Al coupleThis technical barrier of Zr poisoning effect. The method has not only expanded Al-Ti-X and has closed without magnalium from spreading systemApplication in gold, and preparation technology is simple, and production cost is low, is suitable for large-scale production.
The present invention has following outstanding feature compared with current existing technology:
1) technique is relatively simple, is easy to apply, and carries out scale commodity production. The invention is characterized inSuccessfully prepare in-situ particle and strengthen without magnalium based composites, and ensured the grain refining efficiency of Zr element,At Al2Y、Al11Y3Under effect etc. useful phase, further promote the mechanical performance of magnesium alloy.
2) magnesium base composite material that the present invention prepares can or carry out secondary deformation processing for semisolid remelting,Therefore the strand (part) that cast obtains can be used as semi-solid blank or the high-performance deformation magnesium of diecast magnesium alloyThe original blank of alloy.
Detailed description of the invention
Embodiment 1:
Step 1, utilizes magnesium ingot, zinc ingot metal melting Mg-6Zn magnesium base melt;
Step 2, selects Al-Ti-B from spreading system, lights self-propagating reaction in vacuum heater, formerThe synthetic TiB in position2Strengthen particle, be prepared in the middle of then reacted Al-Ti-B prefabricated section being joined to magnesium liquidMg-6Zn magnesium base composite material melt; The amount that certainly spreads prefabricated section adding is 10 with magnesium base melt quality ratio﹕100；
Step 3, adds Y element and stirs to magnesium base composite material melt, makes it consume Al-Ti-BRemaining Al element after system reaction, obtains Composite Melt; The atom of Y element and remaining Al elementThan being 1 ﹕ 2.
Step 4, then Zr element is added in Composite Melt, and fully stir. Insulation is watered after leaving standstillInjection forming, obtains original position TiB2Particle strengthens ZK60 magnesium base composite material.
Embodiment 2:
Step 1, utilizes magnesium ingot, zinc ingot metal melting Mg-8Zn magnesium base melt;
Step 2, selects Al-Ti-C from spreading system, Al-Ti-C prefabricated section directly joined in the middle of magnesium liquid,Utilize magnesium liquid high temperature to light self-propagating reaction, the synthetic TiC of original position strengthens particle, has so just obtained Mg-8ZnMagnesium base composite material melt; The amount that certainly spreads prefabricated section adding is 4 ﹕ 100 with magnesium base melt quality ratio;
Step 3, adds Y element and stirs to magnesium base composite material melt, makes it consume Al-Ti-CRemaining Al element after system reaction. The atomic ratio of Y element addition and remaining Al element is 1.1 ﹕ 2.
Step 4, then Zr element is added in Composite Melt, and fully stir. Insulation is watered after leaving standstillInjection forming, obtains in_situ TiC particle and strengthens ZK80 magnesium base composite material.

Claims (2)

1. adopt Al-Ti-X from spreading the method for system preparation without magnalium based composites, it is characterized in that,Comprise the following steps:
Step 1, Melting Magnesium base melt obtains magnesium liquid, does not add Zr element;
Step 2, selects Al-Ti-X from spreading system, adopts self propagating high temperature synthetic method original position to synthesize and containsStrengthen the magnesium base composite material melt of particle; Described Al-Ti-X from spread system be Al-Ti-B orAl-Ti-C; The mass ratio of the prefabricated section of the described system that certainly spreads and magnesium base melt is 1～20 ﹕ 100;
Step 3 is added Y element in magnesium base composite material melt, fully stirs, and consumes Al-Ti-XThe Al element of remnants after self-propagating reaction; The atomic ratio of described Y element and remaining Al element is1.0～1.1﹕2；
Step 4, adds Zr element in step 3 magnesium base composite material melt after treatment, fully stirsMix, insulation leave standstill after moulding by casting, obtain in-situ particle strengthen without magnalium based composites.
2. a kind of Al-Ti-X that adopts according to claim 1 is prepared without magnalium base composite wood from spreading systemThe method of material, is characterized in that, described self propagating high temperature synthetic method is: prefabricated section is at vacuum or argonIn the heater of gas protection, light after self-propagating reaction, add in magnesium liquid; Or prefabricated section adds magnesium liquidIn, utilize magnesium liquid temp to light self-propagating reaction.
CN201610041932.XA 2016-01-21 2016-01-21 A kind of use Al Ti X self- propagatings system prepares the method without magnalium based composites Expired - Fee Related CN105603240B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107354330A (en) * 2017-07-13 2017-11-17 兰州理工大学 A kind of preparation method of Al Ti C intermediate alloys

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10102163A (en) * 1996-09-24 1998-04-21 Hiroshima Pref Gov Intermetallic compound reinforced magnesium base composite material and its production
CN1195030A (en) * 1997-04-01 1998-10-07 中国科学院金属研究所 Telchnique for preparing in-situ authigenic metal-base composite material
CN101280380A (en) * 2008-05-29 2008-10-08 济南大学 Low-temperature in situ synthesized magnesium-based composite material added with TiC particles and preparation process thereof
CN101608277A (en) * 2009-06-02 2009-12-23 大连理工大学 A kind of electromagnetic/ultrasonic preparation method of in-situ particle reinforced magnesium-based composite material
CN101956118A (en) * 2010-09-16 2011-01-26 大连理工大学 Preparation method of magnesium-based composite material containing various in-situ enhancing particles of rare earth

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10102163A (en) * 1996-09-24 1998-04-21 Hiroshima Pref Gov Intermetallic compound reinforced magnesium base composite material and its production
CN1195030A (en) * 1997-04-01 1998-10-07 中国科学院金属研究所 Telchnique for preparing in-situ authigenic metal-base composite material
CN101280380A (en) * 2008-05-29 2008-10-08 济南大学 Low-temperature in situ synthesized magnesium-based composite material added with TiC particles and preparation process thereof
CN101608277A (en) * 2009-06-02 2009-12-23 大连理工大学 A kind of electromagnetic/ultrasonic preparation method of in-situ particle reinforced magnesium-based composite material
CN101956118A (en) * 2010-09-16 2011-01-26 大连理工大学 Preparation method of magnesium-based composite material containing various in-situ enhancing particles of rare earth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107354330A (en) * 2017-07-13 2017-11-17 兰州理工大学 A kind of preparation method of Al Ti C intermediate alloys
CN107354330B (en) * 2017-07-13 2018-10-26 兰州理工大学 A kind of preparation method of Al-Ti-C intermediate alloys

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