CN108715962A - A kind of rear-earth-doped Mg base hydrogenous alloys - Google Patents
A kind of rear-earth-doped Mg base hydrogenous alloys Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C23/00—Alloys based on magnesium
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- C22C1/02—Making non-ferrous alloys by melting
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Abstract
The present invention provides a kind of rear-earth-doped Mg base hydrogenous alloys, rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；Mg, Ce, Gd, Y, Ni and Al raw metal after weighing carries out the first vacuum melting, obtains primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs, obtains primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Hot pressing is carried out to loose alloy pig, obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg alloy pigs are crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogenous alloys to the 2nd Mg alloy pigs after broken.
Description
Technical field
The present invention relates to novel energy resource material technology field, more particularly to a kind of rear-earth-doped Mg base hydrogenous alloys.
Background technology
Being constantly progressive and develop along with human society, the mankind are to the understanding of the energy and using also constantly reforming.
From the fossil of early stage, steam can till now common electric energy or even existing wind energy, solar energy, tide energy etc., be society
Prosperity and further development be made that tremendous contribution.Electric energy has become main secondary energy sources at present, mainly by coal,
The combustion of fossil fuel such as oil prepare gained.And more tight is become to the dependence of fossil fuel such as coal oil natural gas etc. now
Weight.It is reported that the utilization of worldwide energy includes nearly a quarter in communications and transportation, to this century mid-term we
" energy crisis epoch " will be entered.And since winter in 2012, a fresh and nerve-wracking word has come into people
The visual field -- haze, according to People's Daily's economic society, in January 1 to this 100 days April 10 in 2013, Beijing
Haze number of days has 46 days, i.e., average every two days just once haze skies.In face of awkward present situation, people have to examine closely again existing
The structure of the stage energy simultaneously makes corresponding Improving Measurements thus.Hydrogen can yet be regarded as one as a kind of very clean New-type fuel
The choosing of kind wisdom.Water is only generated after hydrogen burning, this means that the no pollution for being after hydrogen burning.In addition, hydrogen can also pass through
Renewable sources of energy electrolysis water is made.So, no matter from the perspective of environmental protection or energy sustainable development, Hydrogen Energy is
Ideal energy carrier similarly means that the development prospect of hydrogen storage material is desirable.Hydrogen bearing alloy is a kind of energy
Enough reversible absorptions under certain conditions, storage, the alloy for discharging hydrogen.Hydrogen can be present in state of atom in hydrogen bearing alloy
A large amount of interstitial void positions inside alloy, with further changing for external environment and advanced optimizing for its internal structure, gold
Category and intermetallic compound can absorb a large amount of hydrogen.This means that alloy has more excellent trust while hydrogen storage
Security reliability and high volume density hydrogen storage content.
Being disclosed in the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or imply that the information is constituted in any form.
Invention content
The purpose of the present invention is to provide based on a kind of rear-earth-doped Mg base hydrogenous alloys, to overcome the prior art
Disadvantage.
To achieve the above object, the present invention provides a kind of rear-earth-doped Mg base hydrogenous alloys, it is characterised in that：Rare earth
The Mg base hydrogenous alloys of doping are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；According to default chemistry
Formula weighs to Mg, Ce, Gd, Y, Ni and Al raw metal；Mg, Ce, Gd, Y, Ni and Al metal after weighing is former
Material carries out the first vacuum melting, obtains primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs, primary magnesium is obtained and closes
Bronze；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Hot pressing is carried out to loose alloy pig, is obtained closely knit
Alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg alloy pigs are crushed；
Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogenous alloys to the 2nd Mg alloy pigs after broken.
Preferably, in above-mentioned technical proposal, wherein default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05,
In, X=0.005-0.008, y=0.01-0.012, z=0.003-0.005.
Preferably, in above-mentioned technical proposal, the first vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, when melting
Between be 5-8min, in fusion process, alloy pig is subjected to once inside out per melting 30-40s.
Preferably, in above-mentioned technical proposal, wherein carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 15-
20h, ball milling speed 500-600r/min, wherein per ball milling 50-60min, stop ball milling 5-10min.
Preferably, in above-mentioned technical proposal, wherein carrying out hot pressing to loose alloy pig is specially：Hot pressing air pressure is less than
0.03Pa, hot pressing temperature are 800-900 DEG C, hot pressing pressure 10-20MPa, hot pressing time 30-50min.
Preferably, in above-mentioned technical proposal, carrying out the second vacuum melting to loose alloy pig is specially：Vacuum degree is less than
Alloy pig is carried out once inside out by 0.01Pa, smelting time 10-15min in fusion process per melting 60-80s.
Preferably, in above-mentioned technical proposal, single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is
3000-4000r/min, injection air pressure are 0.5-1MPa, nozzle diameter 0.5-1mm.
Preferably, in above-mentioned technical proposal, the thickness of rear-earth-doped Mg base hydrogenous alloys is 0.2-0.4mm.
Compared with prior art, the present invention has the advantages that：Magnesium base alloy is a kind of well-known hydrogen storage material
Material, has a large amount of prior art to study and improve magnesium-base hydrogen storage material at present.In numerous optimization designs, rare earth is mixed
Miscellaneous magnesium base alloy has shown unique hydrogen storage property, and magnesium base alloy rear-earth-doped at present still has following problem：1,
Due to the backwardness of preparation process, cause alloying component uneven, the advantage of the special band structure of rare earth element can not be played, closes
Golden hydrogen storage property is poor.2, since alloying component is uneven, and the mechanical property of rare earth element itself is poor, and brittleness, hardness are larger,
So alloy is suddenly crisp, magnesium base alloy cannot be processed as to the shape being consistent with device at all, lead to rear-earth-doped magnesium base alloy
It basically can not realize volume production practicality.For problem of the prior art, the application devise a kind of new Mg base hydrogen bearing alloy and
Preparation method.The invention has the advantages that：First, alloying component is optimized, it is abundant to have given full play to Ce, Gd rare earth element
Band structure, cutting and optimization appropriate are carried out to the fermi level of alloy so that the active force between alloy and protium
Enhanced, alloy captures the ability enhancing of protium.Secondly, alloy preparation technology is optimized, by melting, ball milling, hot and cold
Pressure is crushed, in melting and the technique of single roller chilling, is prepared for the alloy strip of good mechanical properties, conjunction prepared by the application
Gold bar band good toughness, can adapt to a degree of mechanical processing.
Specific implementation mode
It provides following implementation to be to be able to be best understood from the disclosure, and can be complete by the scope of the present disclosure
Whole is communicated to those skilled in the art.
Embodiment 1
Rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；By Mg, Ce, Gd, Y, Ni after weighing
And Al raw metals carry out the first vacuum melting, obtain primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs,
Obtain primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Loose alloy pig is carried out
Hot pressing obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg is closed
Ingot is crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogen storages conjunction to the 2nd Mg alloy pigs after broken
Gold.Wherein, default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.005, y=0.01, z=
0.003.First vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, smelting time 5min, in fusion process, often
Alloy pig is carried out once inside out by melting 30s.Wherein, carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 15h,
Ball milling speed is 500r/min, wherein per ball milling 50min, stops ball milling 5min.Wherein, hot pressing tool is carried out to loose alloy pig
Body is：Hot pressing air pressure is less than 0.03Pa, and hot pressing temperature is 800 DEG C, hot pressing pressure 10MPa, hot pressing time 30min.To pine
Dissipating alloy pig the second vacuum melting of progress is specially：Vacuum degree is less than 0.01Pa, smelting time 10min, in fusion process,
Alloy pig is subjected to once inside out per melting 60s.Single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is
3000r/min, injection air pressure are 0.5MPa, nozzle diameter 0.5mm.The thickness of rear-earth-doped Mg base hydrogenous alloys is
0.2mm。
Embodiment 2
Rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；By Mg, Ce, Gd, Y, Ni after weighing
And Al raw metals carry out the first vacuum melting, obtain primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs,
Obtain primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Loose alloy pig is carried out
Hot pressing obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg is closed
Ingot is crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogen storages conjunction to the 2nd Mg alloy pigs after broken
Gold.Wherein, default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.008, y=0.012, z=
0.005.First vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, smelting time 8min, in fusion process, often
Alloy pig is carried out once inside out by melting 40s.Wherein, carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 20h,
Ball milling speed is 600r/min, wherein per ball milling 60min, stops ball milling 10min.Wherein, hot pressing tool is carried out to loose alloy pig
Body is：Hot pressing air pressure is less than 0.03Pa, and hot pressing temperature is 900 DEG C, hot pressing pressure 20MPa, hot pressing time 50min.To pine
Dissipating alloy pig the second vacuum melting of progress is specially：Vacuum degree is less than 0.01Pa, smelting time 15min, in fusion process,
Alloy pig is subjected to once inside out per melting 80s.Single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is
4000r/min, injection air pressure are 1MPa, nozzle diameter 1mm.The thickness of rear-earth-doped Mg base hydrogenous alloys is 0.4mm.
Embodiment 3
Rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；By Mg, Ce, Gd, Y, Ni after weighing
And Al raw metals carry out the first vacuum melting, obtain primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs,
Obtain primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Loose alloy pig is carried out
Hot pressing obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg is closed
Ingot is crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogen storages conjunction to the 2nd Mg alloy pigs after broken
Gold.Wherein, default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.006, y=0.011, z=
0.004.First vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, smelting time 6min, in fusion process, often
Alloy pig is carried out once inside out by melting 35s.Wherein, carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 18h,
Ball milling speed is 550r/min, wherein per ball milling 55min, stops ball milling 8min.Wherein, hot pressing tool is carried out to loose alloy pig
Body is：Hot pressing air pressure is less than 0.03Pa, and hot pressing temperature is 850 DEG C, hot pressing pressure 15MPa, hot pressing time 40min.To pine
Dissipating alloy pig the second vacuum melting of progress is specially：Vacuum degree is less than 0.01Pa, smelting time 12min, in fusion process,
Alloy pig is subjected to once inside out per melting 70s.Single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is
3500r/min, injection air pressure are 0.8MPa, nozzle diameter 0.8mm.The thickness of rear-earth-doped Mg base hydrogenous alloys is
0.3mm。
Embodiment 4
Rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；By Mg, Ce, Gd, Y, Ni after weighing
And Al raw metals carry out the first vacuum melting, obtain primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs,
Obtain primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Loose alloy pig is carried out
Hot pressing obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg is closed
Ingot is crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogen storages conjunction to the 2nd Mg alloy pigs after broken
Gold.Wherein, default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.01, y=0.015, z=0.The
One vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, smelting time 6min, will per melting 35s in fusion process
Alloy pig carries out once inside out.Wherein, carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 18h, and ball milling speed is
550r/min, wherein per ball milling 55min, stop ball milling 8min.Wherein, carrying out hot pressing to loose alloy pig is specially：Hot pressing gas
It forces down in 0.03Pa, hot pressing temperature is 850 DEG C, hot pressing pressure 15MPa, hot pressing time 40min.Loose alloy pig is carried out
Second vacuum melting is specially：Vacuum degree is less than 0.01Pa, smelting time 12min, will per melting 70s in fusion process
Alloy pig carries out once inside out.Single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is 3500r/min, spray
Pressure of emanating is 0.8MPa, nozzle diameter 0.8mm.The thickness of rear-earth-doped Mg base hydrogenous alloys is 0.3mm.
Embodiment 5
Rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；By Mg, Ce, Gd, Y, Ni after weighing
And Al raw metals carry out the first vacuum melting, obtain primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs,
Obtain primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Loose alloy pig is carried out
Hot pressing obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg is closed
Ingot is crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogen storages conjunction to the 2nd Mg alloy pigs after broken
Gold.Wherein, default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.006, y=0.011, z=
0.004.First vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, smelting time 10min, in fusion process, often
Alloy pig is carried out once inside out by melting 60s.Wherein, carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 30h,
Ball milling speed is 800r/min, wherein per ball milling 100min, stops ball milling 20min.Wherein, hot pressing is carried out to loose alloy pig
Specially：Hot pressing air pressure is less than 0.03Pa, and hot pressing temperature is 850 DEG C, hot pressing pressure 15MPa, hot pressing time 40min.It is right
Loose alloy pig carries out the second vacuum melting：Vacuum degree is less than 0.01Pa, smelting time 12min, in fusion process
In, alloy pig is subjected to once inside out per melting 70s.Single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, copper roller rotating speed
For 3500r/min, injection air pressure is 0.8MPa, nozzle diameter 0.8mm.The thickness of rear-earth-doped Mg base hydrogenous alloys is
0.3mm。
Embodiment 6
Rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；By Mg, Ce, Gd, Y, Ni after weighing
And Al raw metals carry out the first vacuum melting, obtain primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs,
Obtain primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Loose alloy pig is carried out
Hot pressing obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg is closed
Ingot is crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogen storages conjunction to the 2nd Mg alloy pigs after broken
Gold.Wherein, default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.006, y=0.011, z=
0.004.First vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, smelting time 6min, in fusion process, often
Alloy pig is carried out once inside out by melting 35s.Wherein, carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 18h,
Ball milling speed is 550r/min, wherein per ball milling 55min, stops ball milling 8min.Wherein, hot pressing tool is carried out to loose alloy pig
Body is：Hot pressing air pressure is less than 0.03Pa, and hot pressing temperature is 700 DEG C, hot pressing pressure 5MPa, hot pressing time 20min.To loose
Alloy pig carries out the second vacuum melting：Vacuum degree is less than 0.01Pa, smelting time 20min, in fusion process, often
Alloy pig is carried out once inside out by melting 90s.Single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is
3500r/min, injection air pressure are 0.8MPa, nozzle diameter 0.8mm.The thickness of rear-earth-doped Mg base hydrogenous alloys is
0.3mm。
Embodiment 7
Rear-earth-doped Mg base hydrogenous alloys are prepared by the following method：Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；By Mg, Ce, Gd, Y, Ni after weighing
And Al raw metals carry out the first vacuum melting, obtain primary Mg alloy pigs；Broken and ball milling is carried out to primary Mg alloy pigs,
Obtain primary magnesium alloy powder；Primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；Loose alloy pig is carried out
Hot pressing obtains closely knit alloy pig；Second vacuum melting is carried out to closely knit alloy pig, obtains the 2nd Mg alloy pigs；2nd Mg is closed
Ingot is crushed；Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogen storages conjunction to the 2nd Mg alloy pigs after broken
Gold.Wherein, default chemical formula is：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.006, y=0.011, z=
0.004.First vacuum melting technique is specially：Vacuum degree is less than 0.01Pa, smelting time 6min, in fusion process, often
Alloy pig is carried out once inside out by melting 35s.Wherein, carrying out ball milling to primary Mg alloy pigs is specially：Ball-milling Time is 18h,
Ball milling speed is 550r/min, wherein per ball milling 55min, stops ball milling 8min.Wherein, hot pressing tool is carried out to loose alloy pig
Body is：Hot pressing air pressure is less than 0.03Pa, and hot pressing temperature is 850 DEG C, hot pressing pressure 15MPa, hot pressing time 40min.To pine
Dissipating alloy pig the second vacuum melting of progress is specially：Vacuum degree is less than 0.01Pa, smelting time 12min, in fusion process,
Alloy pig is subjected to once inside out per melting 70s.Single roller chilling is specially：Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is
5000r/min, injection air pressure are 0.3MPa, nozzle diameter 1.5mm.The thickness of rear-earth-doped Mg base hydrogenous alloys is
0.8mm。
It is mode well known in the art, test result to carry out discharge capacity and fracture toughness test, test mode to alloy
It is normalized based on embodiment 1, test result is listed in table 1.
Table 1
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (8)
1. a kind of rear-earth-doped Mg base hydrogenous alloys, it is characterised in that：The rear-earth-doped Mg base hydrogenous alloys are by as follows
It is prepared by method：
Mg, Ce, Gd, Y, Ni and Al raw metal are provided；
It weighs to Mg, Ce, Gd, Y, Ni and Al raw metal according to default chemical formula；
Mg, Ce, Gd, Y, Ni and Al raw metal after weighing carries out the first vacuum melting, obtains primary Mg and closes
Ingot；
Broken and ball milling is carried out to the primary Mg alloy pigs, obtains primary magnesium alloy powder；
The primary magnesium alloy powder is pressed into loose alloy pig using cold isostatic pressing process；
Hot pressing is carried out to the loose alloy pig, obtains closely knit alloy pig；
Second vacuum melting is carried out to the closely knit alloy pig, obtains the 2nd Mg alloy pigs；
The 2nd Mg alloy pigs are crushed；
Single roller chilling is carried out to obtain rear-earth-doped Mg base hydrogenous alloys to the 2nd Mg alloy pigs after broken.
2. rear-earth-doped Mg base hydrogenous alloys as described in claim 1, it is characterised in that：Wherein, the default chemical formula
For：(Mg1-x-y-zCexGdyYz)Ni0.95Al0.05, wherein X=0.005-0.008, y=0.01-0.012, z=0.003-
0.005。
3. rear-earth-doped Mg base hydrogenous alloys as described in claim 1, it is characterised in that：First vacuum melting technique
Specially：Vacuum degree be less than 0.01Pa, smelting time 5-8min, in fusion process, per melting 30-40s by alloy pig into
Row once inside out.
4. rear-earth-doped Mg base hydrogenous alloys as described in claim 1, it is characterised in that：Wherein, the primary Mg is closed
Ingot carries out ball milling：Ball-milling Time is 15-20h, ball milling speed 500-600r/min, wherein per ball milling 50-
60min stops ball milling 5-10min.
5. rear-earth-doped Mg base hydrogenous alloys as described in claim 1, it is characterised in that：Wherein, to the loose alloy
Ingot carries out hot pressing：Hot pressing air pressure is less than 0.03Pa, and hot pressing temperature is 800-900 DEG C, hot pressing pressure 10-20MPa, heat
The pressure time is 30-50min.
6. rear-earth-doped Mg base hydrogenous alloys as described in claim 1, it is characterised in that：The loose alloy pig is carried out
Second vacuum melting is specially：Vacuum degree is less than 0.01Pa, smelting time 10-15min, in fusion process, per melting 60-
Alloy pig is carried out once inside out by 80s.
7. rear-earth-doped Mg base hydrogenous alloys as described in claim 1, it is characterised in that：It is described list roller chilling be specially：
Vacuum chamber air pressure is less than 0.01Pa, and copper roller rotating speed is 3000-4000r/min, and injection air pressure is 0.5-1MPa, and nozzle diameter is
0.5-1mm。
8. the rear-earth-doped Mg base hydrogenous alloys stated such as claim 7, it is characterised in that：The rear-earth-doped Mg base hydrogen storages
The thickness of alloy is 0.2-0.4mm.
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| CN102383011B (en) * | 2011-10-19 | 2015-02-11 | 厦门钨业股份有限公司 | Rare earth magnesium-based hydrogen storage alloy with low cost and long life and applications thereof |
| CN103074529A (en) * | 2012-10-16 | 2013-05-01 | 西北工业大学 | Magnesium-nickel-yttria hydrogen storage alloy thin belt and preparation method thereof |
| CN108149073B (en) * | 2017-11-17 | 2020-06-23 | 安泰科技股份有限公司 | La-Mg-Ni series hydrogen storage alloy for low-temperature nickel-metal hydride battery and preparation method thereof |
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| CN101624660A (en) * | 2008-07-07 | 2010-01-13 | 北京有色金属研究总院 | Method for preparing high-capacity long-life rare earth and magnesium-based hydrogen storage alloy |
| CN101457321A (en) * | 2008-12-25 | 2009-06-17 | 浙江大学 | Magnesium base composite hydrogen storage material and preparation method |
| CN101575679A (en) * | 2009-06-22 | 2009-11-11 | 北京科技大学 | Preparation method of Mg-Ni series hydrogen storage alloy |
| US20110190119A1 (en) * | 2010-02-03 | 2011-08-04 | Mitsuya Hosoe | Hydrogen Storage Material and Method for Producing the Same |
| CN102392167A (en) * | 2011-11-17 | 2012-03-28 | 上海交通大学 | Magnesium-based hydrogen storage material with added rare earth element and preparation method thereof |
| CN102888545A (en) * | 2012-09-25 | 2013-01-23 | 上海锦众信息科技有限公司 | Method for preparing magnesium-based hydrogen storage alloy |
| CN103317128A (en) * | 2013-05-27 | 2013-09-25 | 西北工业大学 | Mg-Ni-La based composite hydrogen-storage alloy powder and preparation process thereof |
| CN108220728A (en) * | 2017-12-26 | 2018-06-29 | 钢铁研究总院 | A kind of high power capacity light graphite alkene catalytic rare earth magnesium-aluminum-based hydrogen storage material and preparation method |
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| WO2020006843A1 (en) | 2020-01-09 |
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