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    • 2. 发明公开
    • 산화물 분산강화 합금의 제조방법
    • 氧化物分散强化合金的制造方法
    • KR1020120039862A
    • 2012-04-26
    • KR1020100101302
    • 2010-10-18
    • 한국원자력연구원한국수력원자력 주식회사
    • 김태규장진성
    • C22C1/05B22F9/18B22F1/00B22F3/02
    • C22C32/001B22F2998/10B22F2999/00C22C1/053B22F2009/041B22F1/0088B22F3/15B22F3/20B22F3/18B22F2201/01
    • PURPOSE: A method for manufacturing oxidant dispersion reinforcing alloy is provided to adjust the content and the size of oxide precipitates in oxide dispersion reinforcing alloy by determining the oxygen concentration of mechanical-alloyed alloy powder according to various reduction conditions. CONSTITUTION: A method for manufacturing oxidant dispersion reinforcing alloy includes the following: alloy composition powder is mechanical-alloyed(MA) to be pre-treated into MA alloy powder(10); the MA alloy powder is introduced into a container(20); the oxygen concentration of the MA alloy powder is adjusted(30); and the MA alloy powder of the adjusted oxygen concentration is post-treated(40). In the oxygen concentration adjusting process, at least part of oxygen contained in the MA alloy powder is reduced by introducing at least one of hydrogen gas, hydrogen mixed gas, or reducing gas.
    • 目的:提供一种制备氧化剂分散增强合金的方法,通过根据各种还原条件确定机械合金化合金粉末的氧浓度来调节氧化物分散增强合金中氧化物沉淀物的含量和尺寸。 构成:氧化剂分散增强合金的制造方法包括:将合金组成粉末机械合金化(MA)预处理成MA合金粉末(10); 将MA合金粉末引入容器(20)中; 调整MA合金粉末的氧浓度(30); 对经过调整的氧浓度的MA合金粉末进行后处理(40)。 在氧浓度调节过程中,通过引入氢气,氢气混合气体或还原性气体中的至少一种来减少MA合金粉末中所含的氧的至少一部分。
    • 7. 发明公开
    • 고온 강도 및 크리프 특성이 향상된 마르텐사이트계 산화물분산강화 합금 및 이의 제조 방법
    • 具有增强的高温强度和韧性的马氏体氧化物分散强化合金及其制造方法
    • KR1020140118689A
    • 2014-10-08
    • KR1020130164341
    • 2013-12-26
    • 한국원자력연구원한국수력원자력 주식회사
    • 김태규노상훈최병권한창희김기백강석훈천영범장진성정용환
    • C22C38/18C22C33/02
    • C22C38/18C22C33/02
    • The present invention relates to a martensitic oxide dispersion strengthened alloy having enhanced high temperature strength and an enhanced creep property, which includes 8-12wt% of Cr, 0.1-0.5wt% of Y_2O_3, 0.1-0.5wt% of C, 0.2-2 wt% of Mo, 0.01-0.3 wt% of Ti, 0.1-0.3 wt% of Zr, 05-0.2wt% of Ni, and a remainder consisting of Fe, and a method of preparing the same. The martensitic oxide dispersion strengthened alloy according to the present invention includes 8-12wt% of Cr, 0.1-0.5wt% of Y_2O_3, 0.1-0.5wt% of C, 0.2-2 wt% of Mo, 0.01-0.3 wt% of Ti, 0.1-0.3 wt% of Zr, 05-0.2wt% of Ni, and a remainder consisting of Fe. The total contents of Ti Zr, and Ni is 0.5wt% or less. The martensitic oxide dispersion strengthened alloy has excellent strength and an excellent creep property at a high temperature, especially at 700°C, so that the martensitic oxide dispersion strengthened alloy is available to reactor core structural components including nuclear fuel cladding tubes, wires, end caps, and ducts of nuclear power systems, such as sodium-cooling fast reactors.
    • 本发明涉及具有增强的高温强度和增强的蠕变性能的马氏体氧化物分散强化合金,其包括8-12wt%的Cr,0.1-0.5wt%的Y_2O_3,0.1-0.5wt%的C,0.2-2 的Mo,0.01-0.3重量%的Ti,0.1-0.3重量%的Zr,0.05-0.2重量%的Ni,余量由Fe组成的方法及其制备方法。 根据本发明的马氏体分散强化合金包含8-12重量%的Cr,0.1-0.5重量%的Y_2O_3,0.1-0.5重量%的C,0.2-2重量%的Mo,0.01-0.3重量%的Ti ,0.1-0.3重量%的Zr,0.05-0.2重量%的Ni,余量由Fe组成。 Ti Zr和Ni的总含量为0.5重量%以下。 马氏体氧化物分散强化合金在高温下,特别是在700℃下具有优异的强度和优异的蠕变性能,使得马氏体分散强化合金可用于反应堆核心结构部件,包括核燃料包覆管,电线,端盖 ,以及核电系统管道,如钠冷快堆。
    • 8. 发明公开
    • 산화물 분산강화 합금 접합방법 및 그 접합방법을 이용한 산화물 분산강화 합금 접합 구조물
    • 氧化物分散强化合金和结构结构的结合方法
    • KR1020140111535A
    • 2014-09-19
    • KR1020130025812
    • 2013-03-11
    • 한국원자력연구원한국수력원자력 주식회사
    • 노상훈김태규최병권강석훈장진성정용환
    • B23K20/00B21B1/28
    • The present invention relates to a method of joining an oxide dispersion-strengthened alloy, including the following steps: (a) preparing an oxide dispersion-strengthened alloy hardened by cold working; (b) performing a diffused junction process by compressing the oxide dispersion-strengthened alloy; and (c) performing a recrystallizing heat treatment. According to the present invention, the method of joining an oxide dispersion-strengthened alloy prepares an oxide dispersion-strengthened alloy hardened by cold working and compresses the oxide dispersion-strengthened alloy to simultaneously perform a diffused junction process and a recrystallizing heat treatment, so that crystal grain movement is generated to cause no junction interface, thereby having an equal strength to a base metal and improving soundness of a juncture. As a result, because the oxide dispersion-strengthened alloy can be joined to be perfectly integrated in terms of crystallography, the method of joining an oxide dispersion-strengthened alloy is expected to be useful in manufacture of parts to which an oxide dispersion-strengthened alloy is applied.
    • 本发明涉及一种接合氧化物分散强化合金的方法,包括以下步骤:(a)制备通过冷加工硬化的氧化物分散强化合金; (b)通过压缩氧化物分散强化合金进行扩散接合处理; 和(c)进行再结晶热处理。 根据本发明,接合氧化物分散强化合金的方法制备通过冷加工硬化的氧化物分散强化合金,并压缩氧化物分散强化合金,同时进行扩散连接处理和再结晶热处理,使得 产生晶粒运动而不产生接合界面,从而具有与贱金属相等的强度并提高接合点的良好性。 结果,由于可以结合使氧化物分散强化合金结合成一体化,所以预期接合氧化物分散强化合金的方法可用于制造氧化物分散强化合金 被申请;被应用。