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公开(公告)号：KR101373256B1
公开(公告)日：2014-03-11
申请号：KR1020120031924
申请日：2012-03-28
Applicant: 한국과학기술원
Abstract: 본 발명은 확산 접합된 니켈계 합금의 열처리 방법에 관한 것이다. 본 발명에 따르면, 확산 접합된 니켈계 합금을 소정의 조건으로 열처리할 경우, 확산 접합에 의한 접합면의 미세조직이 모재와 동등한 수준으로 개선될 수 있고, 고온 조건 하에서도 상당한 수준의 연신율을 확보할 수 있어, 보다 폭넓은 재료의 설계 및 응용을 가능케 한다.
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公开(公告)号：KR1020110130929A
公开(公告)日：2011-12-06
申请号：KR1020100050493
申请日：2010-05-28
Applicant: 한국과학기술원
CPC classification number: C23C14/16 , C21D1/09 , C23C14/24 , C23C14/5813
Abstract: PURPOSE: A method for preparing a nickel-based alloy having a modified surface is provided to improve the oxidation-resistance and corrosion-resistance of a nickel-based alloy by consecutively supplying a large amount of aluminum to a cracked oxide film. CONSTITUTION: A method for preparing a nickel-based alloy having a modified surface is as follows. Aluminum or nickel aluminide is physically plated on the surface of a nickel based alloy. A laser beam is irradiated to the nickel based alloy plated with the aluminum or nickel aluminide.
Abstract translation: 目的：提供一种制备具有改性表面的镍基合金的方法，以通过连续向裂纹氧化膜供应大量的铝来提高镍基合金的抗氧化性和耐腐蚀性。 构成：制备具有改性表面的镍基合金的方法如下。 铝或镍铝化物被物理地镀在镍基合金的表面上。 将激光束照射到镀铝或镍铝化合物的镍基合金上。
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公开(公告)号：KR101833404B1
公开(公告)日：2018-02-28
申请号：KR1020170098767
申请日：2017-08-04
Applicant: 한국과학기술원
CPC classification number: C22C38/40 , C21D8/005 , C21D2211/001 , C21D2211/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/48
Abstract: 본발명은고강도 Fe-Cr-Al-Ni 멀티플렉스스테인리스강및 이의제조방법에관한것으로철(Fe) 35 내지 63 중량%, 크롬(Cr) 15 내지 30 중량%, 니켈(Ni) 15 내지 30 중량% 및알루미늄(Al) 6.01 내지 15 중량%를포함함으로써, 연성이우수한오스테나이트상, 강도가우수한페라이트상, 및강도와고온수증기산화저항성을함께제공하는 NiAl(B2)상이혼재하는멀티플렉스조직을형성하여얇은두께에도필수적인가공성및 기계적인성(toughness)을확보하고, 고온의원전사고하에서예상되는고온수증기환경에서알루미나를포함한안정적인산화막을생성하므로획기적으로향상된중대사고저항성을제공할수 있다.
Abstract translation: 本发明涉及一种高强度的Fe-Cr-Al系镍复用不锈钢和它们的铁（Fe）的制造方法35至63％（重量），铬（Cr）15〜30％（重量），镍（Ni）15至30重量份 ％，和铝（Al）6.01通过包括至15重量％，延展性优良的奥氏体相，该强度是优良的磁性相，和强度和高温多路组织的NiAl（B2）不同的混合物提供有蒸汽的耐氧化性 通过确保在厚度必要的加工性和机械韧性（韧性）和形成的，因为它产生含有氧化铝在高温蒸汽环境中的稳定的氧化物层的高温核事故下，预计可以提供在严重事故阻力的大幅增加。
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Patent Agency Ranking14.发明授权경수로 사고저항성이 우수한 듀플렉스 조직을 갖는 스테인리스강 핵연료 피복관 및 이의 제조방법 有权一种不锈钢燃料包壳管及其制造方法，所述不锈钢燃料包壳管具有优良的轻水反应堆事故阻力的双重结构
公开(公告)号：KR101779128B1
公开(公告)日：2017-09-19
申请号：KR1020160137357
申请日：2016-10-21
Applicant: 한국과학기술원
CPC classification number: Y02E30/40 , G21C3/07 , B21B3/02 , B21B23/00 , C21D2211/001 , C21D2211/005 , C22C38/34 , C22C38/40 , C22C38/48
Abstract: 본발명은듀플렉스조직을갖는핵연료피복관및 이의제조방법에관한것으로철(Fe) 35 내지 65 중량%, 크롬(Cr) 15 내지 30 중량%, 니켈(Ni) 15 내지 30 중량% 및알루미늄(Al) 5 내지 10 중량%를포함함으로써, 연성이우수한오스테나이트상과강도가우수한페라이트상이혼재하는듀플렉스조직을형성하여얇은핵연료피복관으로써필수적인가공성및 기계적인성(toughness)을확보하고, 고온의원전사고하에서예상되는고온수증기환경에서안정적인알루미나를생성하므로획기적으로향상된중대사고저항성을제공할수 있다.
Abstract translation: 本发明是铁（Fe）35％至65％（重量），铬（Cr）15〜30％（重量），镍（Ni）15〜30％和Al（重量）的燃料包壳和具有双工组织的方法（Al）的 通过包括5至10％（重量），延展性优良的奥氏体相和固定必要的加工性和机械韧性（韧性），其为薄的燃料包壳以形成双链体组织优良的铁素体相的强度被混合，热的核事故下估计 通过在高温水汽环境下生产稳定的氧化铝，可以显着提高重大事故抵抗力。
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公开(公告)号：KR101527112B1
公开(公告)日：2015-06-08
申请号：KR1020100050494
申请日：2010-05-28
Applicant: 한국과학기술원
Abstract: 본발명은니켈기합금의확산접합방법에관한것으로서, 보다구체적으로 1) 니켈기합금의표면에알루미늄또는니켈알루미나이드를물리적증착시키는단계, 2) 550 ~ 650℃의온도하에서상호확산열처리(inter-diffusion heat treatment) 공정을수행하여금속간화합물층(Intermetallic compound layer)을형성하는단계, 및 3) 상기 2) 단계로부터제조되는금속간화합물층이형성된니켈기합금 2종간에상기금속간화합물층을접합부로하여확산접합공정을수행하는단계를포함한다. 본발명에따라제조되는확산접합된니켈기합금은접합력이우수하고, 고온부식저항성을향상시킬수 있다.
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公开(公告)号：KR1020120107301A
公开(公告)日：2012-10-02
申请号：KR1020110024924
申请日：2011-03-21
Applicant: 한국과학기술원
Abstract: PURPOSE: A method of surface modification of a nickel-based superalloy by electron beam induced surface alloying is provided to obtain a protective coating that is stable in high-temperature oxidation conditions and thereby maintains the integrity of the nickel-based superalloy for long-time use. CONSTITUTION: A method of surface modification of a nickel-based superalloy by electron beam induced surface alloying comprises the steps of: grinding the surface of the nickel-based superalloy with a silicon carbide, depositing aluminum on the ground surface of the nickel-based superalloy, loading the superalloy in a vacuum chamber, and irradiating the superalloy with electron beams to form a micro-alloy layer on the superalloy surface.
Abstract translation: 目的：提供通过电子束诱导表面合金化对镍基超级合金进行表面改性的方法，以获得在高温氧化条件下稳定的保护涂层，从而长期保持镍基超级合金的完整性 使用。 构成：通过电子束诱导的表面合金化对镍基超级合金进行表面改性的方法包括以下步骤：用碳化硅研磨镍基超级合金的表面，在镍基超级合金的地面上沉积铝 ，将超合金加载到真空室中，并用电子束照射超合金以在超合金表面上形成微合金层。
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公开(公告)号：KR1020130109845A
公开(公告)日：2013-10-08
申请号：KR1020120031925
申请日：2012-03-28
Applicant: 한국과학기술원
Abstract: PURPOSE: A method for heat-treating the diffused junction nickel-based alloy is provided to improve the micro-structure and the mechanical property of the junction surface of a nickel-based alloy, bonded by the diffused junction, equal to a base material. CONSTITUTION: A method for heat-treating the diffused junction nickel-based alloy comprises the step of growing the crystal grain on a junction surface by heat-treating the diffused junction body of Haynes 230 which is a nickel-based alloy under the high temperature and pressure. The heat-treatment process performs the following steps: heating the diffused junction body at the temperature rising speed of 3 to 6 °C/min from the room temperature to 950 to 1050°C; heating the heated diffused junction body at the temperature rising speed of 0.5 to 2 °C/min up to 1150 to 1250°C; maintaining the heated diffused junction body for 90 to 110 hours at 1150 to 1250°C; and cooling the heated diffused junction body at the room temperature.
Abstract translation: 目的：提供一种热处理扩散结镍基合金的方法，以改善通过扩散结结合的镍基合金的接合表面的微结构和机械性能等于基材。 构成：用于热处理扩散结镍基合金的方法包括通过在高温下对作为镍基合金的Haynes 230的扩散连接体进行热处理，在结合面上生长晶粒的步骤，以及 压力。 热处理工序进行以下步骤：以3〜6℃/分钟的升温速度将扩散连接体从室温加热到950〜1050℃; 以0.5〜2℃/ min的升温速度将加热的扩散连接体加热至1150〜1250℃; 在1150〜1250℃保持热扩散连接体90〜110小时; 并在室温下冷却加热的扩散连接体。
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公开(公告)号：KR1020130109844A
公开(公告)日：2013-10-08
申请号：KR1020120031924
申请日：2012-03-28
Applicant: 한국과학기술원
Abstract: PURPOSE: A method for heat-treating the diffused junction nickel-based alloy is provided to improve the micro-structure and the mechanical property of the junction surface of a nickel-based alloy, bonded by the diffused junction, equal to a base material. CONSTITUTION: A method for heat-treating the diffused junction nickel-based alloy comprises the step of growing the crystal grain on a junction surface by heat-treating the diffused junction body of alloy 617 which is a nickel-based alloy under the high temperature and pressure. The heat-treatment is performed through the next step. Under the condition of the pressure of 1×10-7 torr or 1×10-5 torr, the diffused junction body is heated at a temperature rising speed of 3 to 6 °C/min from the room temperature up to 1000 to 1200°C. The heated diffused junction body is maintained for 15 to 25 hours at 1000 to 1200°C. The heated diffused junction body is cooled to the room temperature.
Abstract translation: 目的：提供一种热处理扩散结镍基合金的方法，以改善通过扩散结结合的镍基合金的接合表面的微结构和机械性能等于基材。 构成：用于热处理扩散结镍基合金的方法包括通过在高温下对作为镍基合金的合金617的扩散接合体进行热处理，在接合面上生长晶粒的步骤，以及 压力。 热处理通过下一步进行。 在1×10-7乇或1×10-5乇的压力条件下，扩散连接体以3〜6℃/ min的升温速度从室温加热至1000〜1200° C。 加热的扩散连接体在1000至1200℃下保持15至25小时。 被加热的扩散连接体被冷却到室温。
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