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公开(公告)号：WO2011053041A2
公开(公告)日：2011-05-05
申请号：PCT/KR2010/007520
申请日：2010-10-29
CPC classification number: H01M8/021 , C22C38/26 , H01M2008/1293 , Y02P70/56
Abstract: 본 발명은 고가이면서 제강이 용이하지 않은 희토류 원소를 포함하지 않으면서도, 내산화성과 전기전도성이 높고 동시에 고온에서 크롬(Cr)의 휘발속도가 낮아, 특히 연료전지용 연결재에 적합한 스테인리스강에 관한 것이다. 본 발명에 따른 스테인리스강은, Cr: 20중량% 초과 ~ 35중량%, Mn: 1중량% 이하, Nb: 0.3중량% ~ 5중량%를 함유하고, 나머지 Fe와 불가피한 불순물로 이루어진 것을 특징으로 한다.
Abstract translation: 本发明的目的是提供一种燃料电池，其成本高，不含稀土元素，其不易制造，具有高的抗氧化性和导电性，同时具有低的铬（Cr）挥发率， 本发明涉及一种适用于生产不锈钢的不锈钢。 本发明的不锈钢的特征在于，含有20重量％〜35重量％的Cr，1重量％以下的Mn，0.3重量％〜5重量％的Nb，余量的Fe和不可避免的杂质 。
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Patent Agency Ranking
公开(公告)号：KR100827011B1
公开(公告)日：2008-05-02
申请号：KR1020060126883
申请日：2006-12-13
Applicant: 포항공과대학교 산학협력단
IPC: H01M8/02
CPC classification number: H01M8/021 , H01M8/0206 , H01M2008/1095
Abstract: A metallic separator for a fuel cell, and a fuel cell containing the metallic separator are provided to improve corrosion resistance even without surface coating, thereby enhancing contact resistance. A metallic separator for a fuel cell comprises austenite-based stainless steel containing molybdenum(Mo) and tungsten(W); and at least one selected from the group consisting of tantalum(Ta) and lanthanum(La). Preferably the amount of tantalum and lanthanum is 0.01-1.0 wt%, respectively. Preferably the amount of molybdenum and tungsten is 0.2-5 wt% and 0.01-15 wt%, respectively.
Abstract translation: 提供了用于燃料电池的金属隔板和包含金属隔板的燃料电池，以提高即使没有表面涂层的耐腐蚀性，从而提高接触电阻。 用于燃料电池的金属隔板包括含有钼（Mo）和钨（W）的奥氏体系不锈钢; 和选自钽（Ta）和镧（La）中的至少一种。 优选钽和镧的量分别为0.01-1.0重量％。 优选钼和钨的量分别为0.2-5重量％和0.01-15重量％。
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公开(公告)号：KR101631018B1
公开(公告)日：2016-06-16
申请号：KR1020150027990
申请日：2015-02-27
Applicant: 주식회사 포스코 , 포항공과대학교 산학협력단
CPC classification number: C22C38/34 , C21D2211/005 , C22C38/001 , C22C38/04 , C22C38/22
Abstract: 본발명은종래에입계부식방지를위해사용된 Cr 보다탄소친화력이강한 Ti 또는 Nb와같은탄화물안정화원소를사용하지않고, Cr 탄화물의생성을억제하여페라이트계스테인리스강의내입계부식성을향상시키고자하는것으로, Cr 보다도탄소친화력이약한 Mo, Si, Mn의복합첨가에의하여, 입계및 그주변에 Mo-Si-Mn-C계금속간화합물이형성되어강재내부의탄소를고정하고입계에서발생하는 Cr의농축및 그에따른고갈현상을억제하여입계부식을방지하는페라이트계스테인리스강을제공한다.
Abstract translation: 本发明的目的是通过防止Cr碳化物的形成来改善铁素体不锈钢的耐晶间腐蚀性，而不使用碳以前的碳亲合性高于用于防止晶间腐蚀的Cr的碳或碳化物稳定元素 。 本发明提供了具有优异的耐晶间腐蚀性的铁素体不锈钢，其能够通过在碳上添加Mo，Si和Mn与碳在晶粒周围形成晶粒和Mo-Si-Mn-C系化合物， 亲和力低于Cr，通过防止由其引起的谷物和废气中产生的Cr的浓度来防止晶间腐蚀。 铁不锈钢包括：10-14重量％的Cr; 0.02重量％以下的C; 0.02重量％以下的N; 0.04重量％以下的P; 0.01重量％以下的S; 0.05-2.0摩尔 0.2-1.5重量％的Si; 0.1-1.0重量％的Mn; 其余由Fe和不可避免的杂质组成。
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公开(公告)号：KR1020110047999A
公开(公告)日：2011-05-09
申请号：KR1020100106691
申请日：2010-10-29
Applicant: 포항공과대학교 산학협력단
CPC classification number: Y02P70/56 , C22C38/26 , C21D2211/005 , C22C38/001 , C22C38/004 , C22C38/20 , C22C38/22
Abstract: PURPOSE: Ferritic stainless steel for solid oxide fuel cells and a connecting member using the same are provided to enable mass production at low cost since rare-earth elements are not used. CONSTITUTION: Ferritic stainless steel for solid oxide fuel cells consists of Cr of 20~35weight%, Mn of 1weight% or less, Nb of 0.3~5weight% and Fe and inevitable impurities. Alternatively, the content of the Nb is 0.8~1.5weight%. The territic stainless steel further comprises C of 0.03weight% or less, N of 0.03weight% or less, Mo of 5.0weight% or less, Cu of 3.0weight% or less, one or more of Ti, V and Zr of 0.5weight% or less, and one or more of Si, Ti, Al, Mg and Ca of 0.1weight% or less.
Abstract translation: 目的：提供用于固体氧化物燃料电池的铁素体不锈钢和使用该铁素体不锈钢的连接构件，以便不使用稀土元素，从而能够以低成本进行批量生产。 构成：用于固体氧化物燃料电池的铁素体不锈钢由20〜35重量％的Cr，1重量％以下的Mn，0.3〜5重量％的Nb和不可避免的杂质构成。 或者，Nb的含量为0.8〜1.5重量％。 赤铁矿不锈钢还包含0.03重量％以下的C，0.03重量％以下的N，5.0重量％以下的Mo，3.0重量％以下的Cu，0.5重量％的Ti，V和Zr中的一种或多种 ％以下，Si，Ti，Al，Mg，Ca中的一种以上为0.1重量％以下。
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5.发明授权
公开(公告)号：KR101249851B1
公开(公告)日：2013-04-03
申请号：KR1020110129033
申请日：2011-12-05
Applicant: 포항공과대학교 산학협력단
Abstract: PURPOSE: An electrochemical hydrogen transmitting test using a palladium coating layer under a condition of the tensile stress of elastic and plastic regions is provided to successfully perform a hydrogen transmitting test of high-strength metallic materials such as high-tensile steel under the condition of the tensile stress of elastic and plastic regions. CONSTITUTION: An electrochemical hydrogen transmitting test of high-strength metallic materials comprises the following steps: a step for charging a hydrogen atom on one side of a metallic specimen by applying current to the metallic specimen and a platinum electrode by using a solution capable of supplying hydrogen as a medium; a step for measuring the quantity of a flux by oxidizing the hydrogen atom discharged to the other side of the metallic specimen; and a step for performing the hydrogen transmitting test after forming a palladium plating layer while applying predetermined tensile stress to the metallic specimen.
Abstract translation: 目的：提供在弹性和塑性区域的拉伸应力条件下使用钯涂层的电化学氢传递试验，以成功实施高强度金属材料如高强度钢的氢气透过试验， 弹性和塑性区域的拉伸应力。 构成：高强度金属材料的电化学氢传递试验包括以下步骤：通过使用能够供应的溶液向金属试样和铂电极施加电流而对金属试样一侧的氢原子进行充电的步骤 氢作为介质; 通过氧化向金属试样的另一侧排出的氢原子来测量焊剂的量的步骤; 以及在对金属试样施加规定的拉伸应力之后，在形成钯镀层之后进行氢气透过试验的工序。
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公开(公告)号：KR1020080109148A
公开(公告)日：2008-12-17
申请号：KR1020070057084
申请日：2007-06-12
Applicant: 포항공과대학교 산학협력단
IPC: C22C38/22
Abstract: A separator for the stainless steel and the fuel battery which this stainless steel is manufactured with this stainless steel is provided by increasing corrosion resistance using the new the alloy design concept. A stainless steel with a superior corrosion resistance and electric conductance contains austenite type containing the chrome(Cr) with 18~35 weight%, and ferrite-based or tungsten(W) of 4~12 weight% is included in the duplex group stainless steel. The corrosion resistance at the acid solution and electric conductance is excellent, additionally add the component showing the tungsten bronze phenomenon.
Abstract translation: 使用这种不锈钢制造不锈钢和燃料电池的分离器是通过使用新的合金设计理念提高耐腐蚀性而提供的。 具有优异的耐腐蚀性和电导性的不锈钢包含含有18〜35重量％的铬（Cr）的奥氏体型，4〜12重量％的铁素体或钨（W）包含在双组份不锈钢中 。 酸溶液的耐腐蚀性和电导率优异，另外添加显示钨青铜现象的成分。
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