-
公开(公告)号：KR1020050013796A
公开(公告)日：2005-02-05
申请号：KR1020030052362
申请日：2003-07-29
Applicant: 학교법인연세대학교
IPC: C22C45/04
CPC classification number: C22C45/04 , C22C2200/02
Abstract: PURPOSE: To provide a Ni-based amorphous alloy composition which has superior glass forming ability even when a liquid phase Ni-based amorphous alloy is cooled to not more than a glass transition temperature at a low cooling rate of several tens of degrees Kelvin per second and has superior hot workability since it has a supercooled liquid region of 30 degrees Kelvin or more. CONSTITUTION: A Ni-based amorphous alloy composition is characterized in that it can be represented by the following general formula: Nia(ZrxTiy(Nb,Ta)z)SibSnc, wherein a, x, y, z, b and c respectively mean atom percentages of nickel, zirconium, titanium, niobium or tantalum, silicon, and tin, and 50 at.%
Abstract translation: 目的：提供一种Ni基非晶态合金组合物，即使将液相Ni基非晶态合金冷却至几秒钟以下的低冷却速度的玻璃化转变温度以下时也具有优良的玻璃形成能力 并且具有优异的热加工性，因为它具有30开氏度或更高的过冷液体区域。 构成：Ni基非晶合金组合物的特征在于其可以由以下通式表示：Nia（Zr x Ti y（Nb，Ta）z）SibSnc，其中a，x，y，z，b和c分别表示原子 百分比为镍，锆，钛，铌或钽，硅和锡，50原子％，a = 61原子％，20原子％，x = ％<= z <= 20 at。％，0 at。％<= b <= 10 at。％，0 at。％<= c <= 10 at。％，其中合金组成的特征在于 57 at。％<= a <= 59 at。％，25 at。％<= x + y <= 35 at。％，0.1 at。％<= z <= 20 at。％，0 at。％
-
公开(公告)号：KR100549246B1
公开(公告)日：2006-02-03
申请号：KR1020030068648
申请日：2003-10-02
Applicant: 학교법인연세대학교
IPC: C22C23/04
Abstract: 본 발명은 Mg-Zn-Y 합금계에 제4의 원소 지르코늄(Zr)을 첨가하여 합금내부에 분산된 준결정상의 열적 안정성 및 합금의 내부식성을 크게 향상시킴과 동시에, 동적 재결정의 핵 생성 처(site)로 작용하는 준결정상이 보다 균일하게 분산되어 있어서 합금을 압출 및 압연 등의 열간가공으로 가공재를 제조할 때 마그네슘 기지의 결정립을 미세화 하는데 효율적이어서 가공재가 우수한 초소성을 나타내는 열적 안정성이 우수한 준결정상 강화 마그네슘계 합금 및 그의 제조방법에 관한 것이다.
상기 본 발명은 준결정상과 금속고용체의 이상영역이 존재하며, 주조방법에 의해 제조된 열간 가공성을 갖는 Mg - 1.2~8.0at%Zn - 0.2~1.5at%Y - 0.1~3.0at%Zr 로 이루어지며, 용융온도의 1/3 이상의 온도에서 성형을 수행하여 연신율을 150%이상 나타내는 것을 특징으로 한다.
마그네슘합금, 준결정상, 초소성, 열간성형-
公开(公告)号：KR100658982B1
公开(公告)日：2006-12-21
申请号：KR1020050019237
申请日：2005-03-08
Applicant: 학교법인연세대학교
IPC: C22C16/00
Abstract: 본 발명은 연성이 우수한 지르코늄기 비정질 합금조성물에 관한 것이다.
본 발명에 따른 지르코늄기 다원소 비정질 합금조성물은 일반식 Zr
100-(a+b+c+d) -Al
a -Ni
b -Cu
c -M
d 로 표현되고, 상기 일반식에서 a, b, c, d는 각각 알루미늄(Al), 니켈(Ni), 구리(Cu), 원소(M)의 각 원자%로서, 합금의 조성범위는 0원자%-
公开(公告)号：KR1020060098035A
公开(公告)日：2006-09-18
申请号：KR1020050019237
申请日：2005-03-08
Applicant: 학교법인연세대학교
IPC: C22C16/00
CPC classification number: C22C45/10 , C22C2200/02
Abstract: 본 발명은 연성이 우수한 지르코늄기 비정질 합금조성물에 관한 것이다.
본 발명에 따른 지르코늄기 다원소 비정질 합금조성은 일반식 Zr
100-(a+b+c+d) -Al
a -Ni
b -Cu
c -M
d 로 표현되고, 상기 일반식에서 a, b, c, d는 각각 알루미늄(Al), 니켈(Ni), 구리(Cu), 원소(M)의 각 원자%로서, 합금의 조성범위는 0원자%-
Patent Agency Ranking
公开(公告)号：KR1020050032715A
公开(公告)日：2005-04-08
申请号：KR1020030068648
申请日：2003-10-02
Applicant: 학교법인연세대학교
IPC: C22C23/04
Abstract: Provided are a magnesium alloy having excellent thermal stability and hot formability by expanding a process temperature range of quasicrystalline phase and increasing sites of dynamic recrystallization of grains, a magnesium alloy which displays excellent superplasticity, and in which voids are not formed well by refining magnesium matrix structure, and a method for manufacturing the magnesium alloy. A quasicrystalline phase reinforced Mg-based alloy is characterized in that two phase regions of quasicrystalline phase and solid solution metal exist in the alloy, the alloy having hot workability manufactured by casting method comprises Mg as a principal component, 1.2 to 8.0 at.% of Zn, 0.2 to 1.5 at.% of Y and 0.1 to 3.0 at.% of Zr, and the alloy is formed at a temperature corresponding to 1/3 or more of melting point to obtain an elongation of 150% or more. A method for manufacturing a quasicrystalline phase reinforced Mg-based alloy comprises: a step of obtaining an ingot of quasicrystalline phase reinforced Mg-based alloy by casting method, wherein two phase regions of quasicrystalline phase and solid solution metal exist in the alloy, the alloy having hot workability comprises Mg as a principal component, 1.2 to 8.0 at.% of Zn, 0.2 to 1.5 at.% of Y and 0.1 to 3.0 at.% of Zr; and a step of obtaining a workpiece in which strength and elongation of the alloy are increased by refining pro-eutectic alpha magnesium grains through hot extrusion and/or hot rolling of the ingot.
Abstract translation: 本发明提供一种镁合金，通过扩大准晶相的工艺温度范围和增加晶粒的动态再结晶的位置，显示优异的超塑性的镁合金，并且通过精炼镁基体不能很好地形成空隙，从而具有优异的热稳定性和热成形性 结构，以及镁合金的制造方法。 准晶相增强镁基合金的特征在于，在合金中存在准晶相和固溶金属的两相区域，通过铸造方法制造的具有热加工性的合金包括Mg作为主要成分，1.2〜8.0原子％ Zn，0.2〜1.5原子％的Y和0.1〜3.0原子％的Zr，并且在相当于熔点的1/3以上的温度下形成合金，得到150％以上的伸长率。 一种制备准晶相增强镁基合金的方法包括：通过流延法获得准晶相增强Mg基合金锭，其中在合金中存在准晶相和固溶金属的两相区，合金 具有热加工性，包括Mg作为主要成分，1.2至8.0原子％的Zn，0.2至1.5原子％的Y和0.1至3.0原子％的Zr; 以及通过使锭的热挤压和/或热轧精炼先共晶α镁颗粒，获得其中强度和伸长率增加的工件的步骤。
-
公开(公告)号：KR1020020078936A
公开(公告)日：2002-10-19
申请号：KR1020010019353
申请日：2001-04-11
Applicant: 학교법인연세대학교
IPC: C22C23/04
CPC classification number: C22C23/06 , C22C23/04 , C22C45/005 , C22F1/002 , C22F1/06
Abstract: PURPOSE: A quasicrystalline phase hardened Mg-based metal alloy having superior hot formability and high strength and elongation is provided by forming quasicrystalline phase in a metal solid solution matrix as second phase and separating the quasicrystalline phase into small particles so that they are dispersion hardened in the metal matrix, and the method for manufacturing the metal alloy is provided. CONSTITUTION: The quasicrystalline phase hardened Mg-based metal alloy is characterized in that a two-phase region of quasicrystalline phase and metal solid solution exists, and the Mg-based metal alloy comprises Mg-1-10 at.% Zn-0.1-3 at.% Y having hot formability, wherein the metal alloy has 30 vol.% or less of quasicrystalline phase volume. The method for manufacturing the quasicrystalline phase hardened Mg-based metal alloy comprises the steps of forming a quasicrystalline phase hardened Mg-based metal alloy in which a two-phase region of quasicrystalline phase and metal solid solution exists, and the Mg-based metal alloy comprises Mg-1-10 at.% Zn-0.1-3 at.% Y having hot formability by a casting method; and separating and dispersing the quasicrystalline phase into a matrix by a hot forming to increase strength and elongation of the quasicrystalline phase hardened Mg-based metal alloy, wherein the method further comprises the step of performing high temperature forming at a temperature of about 1/3 or more of melting point when manufacturing final article using the hot formed plate so that the dispersed small quasicrystalline particles are further finely distributed, and the hot forming is performed at a temperature of about 1/2 of the melting point, and volume of the quasicrystalline phase is 30 vol.% or less.
Abstract translation: 目的：通过在金属固溶体基质中形成准晶相作为第二相，将准晶相转变为小颗粒，使其分散硬化，提供了具有优异的热成型性和高强度和伸长率的准晶相硬化的Mg基金属合金 金属基体和金属合金的制造方法。 构成：准晶相硬化的Mg基金属合金的特征在于存在准晶相和金属固溶体的两相区域，Mg基金属合金包含Mg-1-10原子％Zn-0.1-3 其具有热成型性，其中所述金属合金具有30体积％以下的准结晶相体积。 制备准晶相硬化的Mg基金属合金的方法包括以下步骤：形成其中存在准晶相和金属固溶体的两相区的准晶相相硬化的Mg基金属合金，以及Mg基金属合金 包括通过流延法具有可热成形性的Mg-1-10原子％Zn-0.1-3原子％Y; 并通过热成型将准晶相分离并分散到基质中，以提高准晶相硬化的Mg基金属合金的强度和伸长率，其中该方法还包括在约1/3的温度下进行高温成形的步骤 使用热成形板制造最终制品时的熔点以上，使得分散的小准晶体颗粒进一步精细分布，并且热成型在约1/2熔点的温度下进行，并且准晶体的体积 相为30体积％以下。
-
公开(公告)号：KR100533334B1
公开(公告)日：2005-12-05
申请号：KR1020030052362
申请日：2003-07-29
Applicant: 학교법인연세대학교
IPC: C22C45/04
Abstract: 본 발명은 니켈기 비정질 합금조성물에 관한 것으로, 일반식
Ni
a (Zr
x Ti
y (Nb, Ta)
z )Si
b Sn
c (여기서, a, x, y, z, b, c 는 각각 니켈, 질코늄, 티타늄, 니오븀 또는 탄탈늄, 실리콘, 주석의 원자%를 의미하며, 50 원자%≤a≤61 원자%, 20 원자%≤x+y≤41, 0.1≤z≤20 원자%, 0 원자%-
公开(公告)号：KR100448152B1
公开(公告)日：2004-09-09
申请号：KR1020010080196
申请日：2001-12-17
Applicant: 학교법인연세대학교
IPC: B22F1/00
Abstract: PURPOSE: An amorphous matrix composite is provided in which ductile particles are reinforced through manufacturing process for integrating the mixed powder after mixing amorphous powder with a certain amount of ductile powder, and a method for manufacturing the same is provided. CONSTITUTION: The ductile particle reinforced amorphous matrix composite is characterized in that ductile powder is dispersed into amorphous powder so that the mixed powder is integrated, wherein the amorphous powder includes all alloy systems that can be manufactured of amorphous powder, wherein the ductile powder includes all types of material having strain stress lower than strain stress generated when forming the amorphous powder in supercooling zone, and wherein the ductile powder is contained in the composite in the range of 0.1 to 40 vol.%. The method for manufacturing the ductile particle reinforced amorphous matrix composite comprises the steps of preparing a mixed powder by mixing amorphous powder with ductile powder; obtaining a billet compacting the mixed powder in the state that the mixed powder is sealed in a container; and integrating the mixed powder by processing the billet at a temperature of amorphous supercooling zone, wherein the amorphous powder includes all alloy systems that can be manufactured of amorphous powder, wherein the alloy system is any one alloy system of Ni-matrix, Ti-matrix, Zr-matrix, Al-matrix, Fe-matrix, La-matrix, Cu-matrix, or Mg-matrix, wherein the ductile powder includes all types of material having strain stress lower than strain stress generated when forming the amorphous powder in supercooling zone, wherein the ductile powder is contained in the composite in the range of 0.1 to 40 vol.%, and wherein the integration step of the mixed powder is performed by hot extrusion or hot forging.
Abstract translation: 目的：提供一种非晶态基质复合材料，其中通过制造工艺来增强韧性颗粒，以便在将非晶态粉末与一定量的延性粉末混合后使所述混合粉末一体化，并提供其制造方法。 构成：延性颗粒增强的无定形基质复合材料的特征在于，延性粉末分散成无定形粉末，以便混合粉末被整合，其中无定形粉末包括可以由无定形粉末制造的所有合金体系，其中延性粉末包括所有 应变应力低于在过冷却区域中形成无定形粉末时产生的应变应力的材料类型，并且其中延性粉末包含在复合材料中的范围为0.1至40体积％。 制造延性颗粒增强非晶基质复合材料的方法包括以下步骤：通过将非晶粉末与延性粉末混合来制备混合粉末; 在将混合粉末密封在容器中的状态下获得压实混合粉末的坯料; 并通过在非晶过冷区的温度下处理所述坯料来整合所述混合粉末，其中所述非晶粉末包括可由非晶粉末制造的所有合金体系，其中所述合金体系是镍基体，钛基体 ，Zr基质，Al基质，Fe基质，La基质，Cu基质或Mg基质，其中延性粉末包括应变应力低于在过冷却中形成无定形粉末时产生的应变应力的所有类型的材料 其中所述可延性粉末包含在所述复合材料中的范围为0.1至40体积％，并且其中所述混合粉末的整合步骤通过热挤压或热锻造进行。
-
公开(公告)号：KR1020030049866A
公开(公告)日：2003-06-25
申请号：KR1020010080196
申请日：2001-12-17
Applicant: 학교법인연세대학교
IPC: B22F1/00
Abstract: PURPOSE: An amorphous matrix composite is provided in which ductile particles are reinforced through manufacturing process for integrating the mixed powder after mixing amorphous powder with a certain amount of ductile powder, and a method for manufacturing the same is provided. CONSTITUTION: The ductile particle reinforced amorphous matrix composite is characterized in that ductile powder is dispersed into amorphous powder so that the mixed powder is integrated, wherein the amorphous powder includes all alloy systems that can be manufactured of amorphous powder, wherein the ductile powder includes all types of material having strain stress lower than strain stress generated when forming the amorphous powder in supercooling zone, and wherein the ductile powder is contained in the composite in the range of 0.1 to 40 vol.%. The method for manufacturing the ductile particle reinforced amorphous matrix composite comprises the steps of preparing a mixed powder by mixing amorphous powder with ductile powder; obtaining a billet compacting the mixed powder in the state that the mixed powder is sealed in a container; and integrating the mixed powder by processing the billet at a temperature of amorphous supercooling zone, wherein the amorphous powder includes all alloy systems that can be manufactured of amorphous powder, wherein the alloy system is any one alloy system of Ni-matrix, Ti-matrix, Zr-matrix, Al-matrix, Fe-matrix, La-matrix, Cu-matrix, or Mg-matrix, wherein the ductile powder includes all types of material having strain stress lower than strain stress generated when forming the amorphous powder in supercooling zone, wherein the ductile powder is contained in the composite in the range of 0.1 to 40 vol.%, and wherein the integration step of the mixed powder is performed by hot extrusion or hot forging.
Abstract translation: 目的：提供一种无定形基质复合材料，其中通过制造方法来加强延性粒子，该混合粉末在混合无定形粉末与一定量的延性粉末之后使混合粉末整合，并提供其制造方法。 构成：延性粒子增强无定形基质复合材料的特征在于，延性粉末分散成无定形粉末，使混合粉末整合，其中无定形粉末包括可由无定形粉末制成的所有合金体系，其中延性粉末包括全部 具有低于在过冷区中形成无定型粉末时产生的应变应力的应变应力的类型，并且其中所述复合材料中所述的延性粉末在0.1至40体积％的范围内。 制造延性粒子增强无定形基质复合材料的方法包括以下步骤：通过将无定形粉末与延性粉末混合来制备混合粉末; 获得在混合粉末密封在容器中的状态下压实混合粉末的坯料; 并且通过在无定形过冷区域的温度下加工所述坯料来整合所述混合粉末，其中所述无定形粉末包括可以由无定形粉末制造的所有合金体系，其中所述合金体系是Ni基体，Ti基体 Zr基体，Al基体，Fe基体，La基体，Cu基体或Mg基体，其中，延性粉末包括应变应力低于在过冷时形成无定形粉末时产生的应变应力的所有类型的材料 其特征在于，所述复合体中含有0.1〜40体积％的所述延展性粉末，其中，所述混合粉末的一体化步骤通过热挤压或热锻造进行。
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.023 seconds)
