CN108193108A - Good Mg-Sn-Y alloy materials of a kind of mechanical property and preparation method thereof - Google Patents

Good Mg-Sn-Y alloy materials of a kind of mechanical property and preparation method thereof Download PDF

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Publication number
CN108193108A
CN108193108A CN201711486500.0A CN201711486500A CN108193108A CN 108193108 A CN108193108 A CN 108193108A CN 201711486500 A CN201711486500 A CN 201711486500A CN 108193108 A CN108193108 A CN 108193108A
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China
Prior art keywords
alloy
alloy materials
good
mechanical property
preparation
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CN201711486500.0A
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Chinese (zh)
Inventor
龙影
蒋斌
赵俊
沈亚群
何俊杰
柴炎福
黄光胜
宋江凤
潘复生
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Chongqing University
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Chongqing University
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C23/00Alloys based on magnesium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

It is composed of the following components by mass percentage the present invention relates to good Mg Sn y alloy materials of a kind of mechanical property and preparation method thereof:Sn 0.5~2.5%, Y 0.3%, Mg surplus, preparation method is will be in magnesium ingot smelting furnace, furnace temperature is risen to after 700 DEG C of 750 DEG C of fusings to the tin slab for adding in alloy ratio, heat preservation 20~30 minutes adds Y metallic elements after tin slab fusing, 10~20 minutes is kept the temperature after stirring, then the aluminium alloy of melting is poured into mold, the Mg Sn y alloy materials of as cast condition are obtained, pass through the Y reacted in Mg Sn alloys with Sn, the Sn of generation3Y5The good Mg Sn y alloy materials of mechanical property can be finally obtained as effective grain refiner.

Description

Good Mg-Sn-Y alloy materials of a kind of mechanical property and preparation method thereof
Technical field
The invention belongs to Material Fields, are related to a kind of good Mg-Sn-Y alloy materials of mechanical property, further relate to Mg-Sn-Y The preparation method of alloy.
Background technology
Magnesium alloy is most light structural metallic materials at present, due to its density is low, specific strength and specific stiffness are high, thermal conductivity and The advantages that damping capacity is good has obtained quick application in industries such as automobile, electronics and communications.Since magnesium alloy is developing and is answering In mechanical behavior under high temperature, corrosion resistance and moulding processing performance etc., there are problems in.In research field, by continuous It is one of means of comprehensive performance for improving magnesium alloy to improve material alloys elemental composition, such as Mg-Sn alloys.Mg-Sn alloys by The main cause that gradually attracts attention is Mg therein2Sn hardening constituent fusing points reach 770.5 DEG C;In addition, solid solubility of the Sn in Mg compared with Good, precipitating reinforcing effect is relatively good, and solubility 14.48% at 561 DEG C, 200 DEG C are reduced to 0.45%, and solid solution aging strengthens effect Well.But there are still two to need the aspect for continuing to improve:First, precipitation phase constitution is coarse, and nonuniform organization leads to alloy Strong plasticity it is poor;Second, as cast condition Mg-Sn alloys precipitated phase is mainly in net distribution in crystal boundary and dendrite wall, the work of eutectic state It is relatively low to make temperature, and lacks transgranular reinforcing effect, so there is the space further improved.
Invention content
In view of this, one of the objects of the present invention is to provide a kind of good Mg-Sn-Y alloy materials of mechanical property, pass through A small amount of Y (yttrium) is added in alloy material, Y is made to be completely used for reacting with Sn (tin), to obtain high performance alloy material;This hair The bright preparation method for also disclosing Mg-Sn-Y alloy materials, it is simple for process.
In order to achieve the above objectives, the present invention provides following technical solution:
1st, the good Mg-Sn-Y alloy materials of a kind of mechanical property, the alloy material is by mass percentage by with the following group It is grouped as:Sn 0.5~2.5%, Y 0.3%, Mg surplus.
Preferably, the alloy material is composed of the following components by mass percentage:More than Sn 0.5%, Y 0.3%, Mg Amount.
Preferably, the alloy material is composed of the following components by mass percentage:More than Sn 2.5%, Y 0.3%, Mg Amount.
2nd, the preparation method of the Mg-Sn-Y alloy materials, includes the following steps:By Mg-Sn-Y alloy ratios by magnesium ingot In smelting furnace, furnace temperature is risen to after 700 DEG C of -750 DEG C of fusings to the tin slab for adding in alloy ratio, 20~30 minutes is kept the temperature, treats tin slab Y metallic elements are added after fusing, 10~20 minutes is kept the temperature after stirring, then the aluminium alloy of melting is poured into mold, is obtained To the Mg-Sn-Y alloy materials of as cast condition.
Preferably, magnesium alloy plate will be squeezed into after the heat preservation 3 hours of 380 DEG C of the Mg-Sn-Y alloy materials of as cast condition.
It is furthermore preferred that the thickness of the magnesium alloy plate is 2mm.
The beneficial effects of the present invention are:The present invention adds in Y in Mg-Sn alloys, few by being added in alloy material Y (yttrium) is measured, Y is made to be completely used for reacting with Sn (tin), makes plank crystal grain refinement, obtains plank average grain size:4.2um, carefully Change about 77%, and extrusion plate mechanical property increases, the intensity and elongation percentage on three directions, which have, significantly to be changed It is kind, along the elongation percentage on ED, 45o direction and TD be respectively 30.3%, 28.1% and 28%, tensile strength be respectively 288MPa, 286MPa and 302MPa, and anisotropy unobvious.
Description of the drawings
In order to make the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides drawings described below and carries out Explanation:
Fig. 1 is influence result (a of the micro addition of Y to Mg-Sn mechanical properties:Mg-2.5Sn;b:Mg-2.5Sn-0.3Y; c:Mg-0.5Sn As-extrudeds;d:Mg-0.5Sn-0.3Y As-extrudeds;e:Mg-0.5Sn and Mg-0.5Sn-0.3Y as cast conditions).
Fig. 2 is influence (a of the micro addition of Y to Mg-2.5Sn microscopic structures:Mg-2.5Sn;b:Mg-2.5Sn-0.3Y; c:Mg-0.5Sn;d:Mg-0.5Sn-0.3Y).
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
Embodiment 1
A kind of good Mg-Sn-Y alloy materials of mechanical property, it is composed of the following components by mass percentage:
Sn 0.5%;
Y 0.3%;
Mg surpluses.
The preparation method of the present embodiment Mg-Sn-Y alloy materials by Mg-Sn-Y alloy ratios by magnesium ingot smelting furnace, is incited somebody to action
Furnace temperature rises to the tin slab of addition alloy ratio after 700 DEG C of fusings, keeps the temperature 20 minutes, and Y is added after tin slab fusing Metal
Element keeps the temperature 20 minutes after stirring, then the aluminium alloy of melting is poured into mold, obtains the Mg-Sn- of as cast condition Y is closed
Golden material;The magnesium that thickness is 2mm finally will be squeezed into after the heat preservation 3 hours of 380 DEG C of the Mg-Sn-Y alloy materials of as cast condition It closes
Golden plate material.
Embodiment 2
A kind of good Mg-Sn-Y alloy materials of mechanical property, it is composed of the following components by mass percentage:
Sn 2.5%;
Y 0.3%;
Mg surpluses.
The preparation method of the present embodiment Mg-Sn-Y alloy materials by Mg-Sn-Y alloy ratios by magnesium ingot smelting furnace, is incited somebody to action Furnace temperature rises to the tin slab of addition alloy ratio after 750 DEG C of fusings, keeps the temperature 30 minutes, and Y metallic elements are added after tin slab fusing, 10 minutes are kept the temperature after stirring, then the aluminium alloy of melting is poured into mold, obtains the Mg-Sn-Y alloy materials of as cast condition;Most The magnesium alloy plate that thickness is 2mm will be squeezed into after the heat preservation 3 hours of 380 DEG C of the Mg-Sn-Y alloy materials of as cast condition afterwards.
In order to study influence of the micro addition of Y to Mg-Sn mechanical properties, the performance of magnesium alloy plate made from measure, Simultaneously not add in the alloy of Y as compareing, as a result as shown in Fig. 1 and table 1~3.
The performance test results of the obtained magnesium alloy plate of table 1, the present invention
Table 2, as cast condition Mechanics Performance Testing
Table 3, As-extruded Mechanics Performance Testing
The above results show to add the intensity that micro Y can be in three directions and elongation percentage improves significantly, and And the tensile strength of As-extruded, yield strength and elongation percentage can be significantly improved in ingot casting state or As-extruded.
Influence of the micro addition to Mg-Sn microscopic structures that Fig. 2 is Y, as a result show add after micro Y crystal particle diameter by 18.5 μm become 4.2 μm, show the micro addition of Y and can make crystal grain refinement.And experimental group is dissolved substantially without Y, the reason is that Y Few Sn is more, and Y with Sn all for reacting, the Sn of generation3Y5Effective grain refiner can be used as.
The above results show that extrusion plate mechanical property increases in Mg-Sn alloys after the Y of addition 0.3wt.%. After identical Y is added in Mg-0.5Sn alloys, the crystal grain refinement of plank about 77%, the intensity and elongation percentage on three directions is equal It improves significantly, along ED, 45oDirection is respectively 30.3%, 28.1% and 28%, tensile strength difference with the elongation percentage on TD For 288MPa, 286MPa and 302MPa, and anisotropy unobvious.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be Various changes are made to it in form and in details, without departing from claims of the present invention limited range.

Claims (6)

1. a kind of good Mg-Sn-Y alloy materials of mechanical property, which is characterized in that the alloy material by mass percentage by Following components forms:Sn 0.5~2.5%, Y 0.3%, Mg surplus.
2. the good Mg-Sn-Y alloy materials of mechanical property according to claim 1, it is characterised in that:The alloy material is pressed Mass percent meter is composed of the following components:Sn 0.5%, Y 0.3%, Mg surplus.
3. the good Mg-Sn-Y alloy materials of mechanical property according to claim 1, it is characterised in that:The alloy material is pressed Mass percent meter is composed of the following components:Sn 2.5%, Y 0.3%, Mg surplus.
4. the preparation method of any one of claims 1 to 3 Mg-Sn-Y alloy materials, which is characterized in that including walking as follows Suddenly:By Mg-Sn-Y alloy ratios by magnesium ingot smelting furnace, alloy ratio is added in after furnace temperature is risen to 700 DEG C of -750 DEG C of fusings Tin slab keeps the temperature 20~30 minutes, adds Y metallic elements after tin slab fusing, 10~20 minutes are kept the temperature after stirring, then will be molten The aluminium alloy of refining is poured into mold, obtains the Mg-Sn-Y alloy materials of as cast condition.
5. the preparation method of Mg-Sn-Y alloy materials according to claim 4, it is characterised in that:The Mg-Sn-Y of as cast condition is closed Magnesium alloy plate is squeezed into after golden 380 DEG C of material heat preservation 3 hours.
6. the preparation method of Mg-Sn-Y alloy materials according to claim 5, it is characterised in that:The magnesium alloy plate Thickness is 2mm.
CN201711486500.0A 2017-12-29 2017-12-29 Good Mg-Sn-Y alloy materials of a kind of mechanical property and preparation method thereof Pending CN108193108A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172439A (en) * 2020-03-06 2020-05-19 西南交通大学 Refined grain magnesium alloy and preparation method thereof
CN111321333A (en) * 2020-03-06 2020-06-23 西南交通大学 Heat-resistant magnesium alloy and preparation method thereof
CN113718146A (en) * 2021-09-03 2021-11-30 承德石油高等专科学校 Mg-Sn-Ce-Ag-Sc alloy and preparation method thereof
CN114045421A (en) * 2021-11-22 2022-02-15 东北大学 High-strength-plasticity high-thermal-stability Mg-Sn wrought alloy and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050129564A1 (en) * 2003-11-26 2005-06-16 Kiyomi Nakamura Magnesium alloy
CN101440441A (en) * 2008-12-23 2009-05-27 重庆大学 Method for thinning CaMgSn phase in Mg-Sn-Ca magnesium alloy by adding Y
CN102449177A (en) * 2009-05-29 2012-05-09 住友电气工业株式会社 Linear object, bolt, nut and washer each comprising magnesium alloy
CN104060140A (en) * 2014-07-10 2014-09-24 重庆大学 High temperature oxidation resistant magnesium alloy
CN104087801A (en) * 2014-07-10 2014-10-08 重庆大学 Corrosion-resistant magnesium alloy and method for improving corrosion resistance of corrosion-resistant magnesium alloy
CN107236887A (en) * 2017-05-15 2017-10-10 重庆大学 A kind of Wrought magnesium alloys in high intensity, high plasticity material and preparation method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050129564A1 (en) * 2003-11-26 2005-06-16 Kiyomi Nakamura Magnesium alloy
CN101440441A (en) * 2008-12-23 2009-05-27 重庆大学 Method for thinning CaMgSn phase in Mg-Sn-Ca magnesium alloy by adding Y
CN102449177A (en) * 2009-05-29 2012-05-09 住友电气工业株式会社 Linear object, bolt, nut and washer each comprising magnesium alloy
CN104060140A (en) * 2014-07-10 2014-09-24 重庆大学 High temperature oxidation resistant magnesium alloy
CN104087801A (en) * 2014-07-10 2014-10-08 重庆大学 Corrosion-resistant magnesium alloy and method for improving corrosion resistance of corrosion-resistant magnesium alloy
CN107236887A (en) * 2017-05-15 2017-10-10 重庆大学 A kind of Wrought magnesium alloys in high intensity, high plasticity material and preparation method

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Title
曾迎: ""合金元素对镁合金临界剪切应力与力学行为影响的研究"", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 *
赵宏达: ""镁合金相图测定及新型Mg-Sn基合金设计、制备和力学性能研究"", 《中国博士学位论文全文数据库》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172439A (en) * 2020-03-06 2020-05-19 西南交通大学 Refined grain magnesium alloy and preparation method thereof
CN111321333A (en) * 2020-03-06 2020-06-23 西南交通大学 Heat-resistant magnesium alloy and preparation method thereof
CN113718146A (en) * 2021-09-03 2021-11-30 承德石油高等专科学校 Mg-Sn-Ce-Ag-Sc alloy and preparation method thereof
CN114045421A (en) * 2021-11-22 2022-02-15 东北大学 High-strength-plasticity high-thermal-stability Mg-Sn wrought alloy and preparation method thereof

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