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1. CN109628812 - Low-alloyed high-performance superplastic magnesium alloy and preparation method thereof

Office
Chine
Numéro de la demande 201910083405.9
Date de la demande 29.01.2019
Numéro de publication 109628812
Date de publication 16.04.2019
Numéro de délivrance 109628812
Date de délivrance 03.11.2020
Type de publication B
CIB
C22C 23/04
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
23Alliages à base de magnésium
04avec le zinc ou le cadmium comme seconds constituants majeurs
C22C 23/00
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
23Alliages à base de magnésium
C22C 1/03
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
1Fabrication des alliages non ferreux
02par fusion
03utilisant des alliages-mère
B22D 27/04
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
22FONDERIE; MÉTALLURGIE DES POUDRES MÉTALLIQUES
DCOULÉE DES MÉTAUX; COULÉE D'AUTRES MATIÈRES PAR LES MÊMES PROCÉDÉS OU AVEC LES MÊMES DISPOSITIFS
27Traitement du métal dans le moule pendant qu'il est liquide ou plastique
04Action sur la température du métal, p.ex. par chauffage ou refroidissement du moule
C22F 1/06
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
FMODIFICATION DE LA STRUCTURE PHYSIQUE DES MÉTAUX OU ALLIAGES NON FERREUX
1Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
06du magnésium ou de ses alliages
CPC
B22D 27/045
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
27Treating the metal in the mould while it is molten or ductile
04Influencing the temperature of the metal, e.g. by heating or cooling the mould
045Directionally solidified castings
C22C 1/03
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making alloys
02by melting
03using master alloys
C22C 23/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
23Alloys based on magnesium
C22C 23/04
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
23Alloys based on magnesium
04with zinc or cadmium as the next major constituent
C22F 1/06
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
06of magnesium or alloys based thereon
Déposants JILIN UNIVERSITY
吉林大学
Inventeurs WANG HUIYUAN
王慧远
DU CHUNFENG
杜春风
WANG CHENG
王珵
ZHA MIN
查敏
MA PINKUI
马品奎
SONG JIAWANG
宋家旺
YANG ZHIZHENG
杨治政
GUAN ZHIPING
管志平
LI ZHIGANG
李志刚
XU JIN
徐进
CHENG XIUMING
程秀明
NING HONG
宁宏
ZHAO LONGQING
赵隆卿
Mandataires 长春市四环专利事务所(普通合伙) 22103
Titre
(EN) Low-alloyed high-performance superplastic magnesium alloy and preparation method thereof
(ZH) 一种低合金高性能超塑性镁合金及其制备方法
Abrégé
(EN)
The invention provides a low-alloyed high-performance superplastic magnesium alloy and a preparation method thereof. The chemical components of the low-alloyed high-performance superplastic magnesiumalloy comprises, by mass, 0.5-2.5% of zinc, 0.05-1.0% of argentum, 0.05-1.0% of calcium, 0.05-1.0% of zirconium and the balance magnesium. The gross of mass percent of the chemical components of alloyelements except magnesium is less than 3%. The preparation method for the low-alloyed high-performance superplastic magnesium alloy comprises four steps of gradient-temperature smelting, accurate andrapid solidifying, rolling technology and recrystallization treatment. According to the low-alloyed high-performance superplastic magnesium alloy and the preparation method thereof, a traditional superplastic magnesium alloy design principle is broken through; through combination of a multi-element small-amount alloy component design principle, an accurate and rapid solidifying method and the rolling technology, the superplastic magnesium alloy which is characterized by having low-alloyed high performance and being short in process and low in cost and the preparation method thereof are acquired; the tensile strength of larger than 300 MPa can be acquired by the alloy with components optimized; the elongation rate is larger than 15%; room-temperature performance is outstanding; and in addition, the alloy with components optimized has superplasticity, the elongation rate at the temperature of 300 DEG C is 300%, and the elongation rate at the temperature of 250 DEG C is 250%.

(ZH)
一种低合金高性能超塑性镁合金及其制备方法。该合金的化学成分质量百分比为:锌0.5‑2.5,银0.05‑1.0,钙0.05‑1.0,锆0.05‑1.0,其余为镁,除镁外合金元素的化学成分质量百分比总量小于3%。该合金的制备方法包括梯度温度熔炼、准快速凝固、轧制工艺和再结晶处理四个步骤,本发明突破传统超塑性镁合金设计原则,通过多元少量合金成分设计原则、准快速凝固方法和轧制工艺相结合,得到了具有低合金高性能、短流程低成本特点的超塑性镁合金及其制备方法,成分优化后的合金可获得抗拉强度>300MPa,延伸率>15%,室温性能优异,此外,成分优化后的合金还具有超塑性,300℃下,延伸率>300%;250℃下,延伸率>250%。

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