KR960001166A - 니켈 및 철을 주성분으로 하는 초합금으로 된 금속 재료에 대한 부동화 방법 - Google Patents

니켈 및 철을 주성분으로 하는 초합금으로 된 금속 재료에 대한 부동화 방법 Download PDF

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KR960001166A
KR960001166A KR1019950017031A KR19950017031A KR960001166A KR 960001166 A KR960001166 A KR 960001166A KR 1019950017031 A KR1019950017031 A KR 1019950017031A KR 19950017031 A KR19950017031 A KR 19950017031A KR 960001166 A KR960001166 A KR 960001166A
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superalloy
layer
vapor deposition
chemical vapor
nickel
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브루뗑 뽈
니시오 빠스깔
로삐딸 프랑스와
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알프레드 엘마레
앵스띠뛰 프랑세 뒤 뻬뜨롤
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Abstract

본 발명은 반응기 또는 요로의 벽에 대한 구성 재료로서 사용되는 3중량% 이하의 알루미늄을 함유하고 니켈과 철을 주성분으로 하는 초합금으로 된 금속 표면에 대한 부동화 방법에 관한 것이다. 본 발명의 방법에 있어서는, 상기 초합금을 고온에서 탄화수소를 함유하는 부식성 대기와 접촉하거나 또는 고온에서 산화성 기체를 함유하는 대기와 접촉하게 되는 하나 이상의 표면상에서 층을 구성하는 성분(들)의 연속적인 화학 증착으로부터 형성된 2이상의 연속하는 층들로 피복하되, 부식성 대기와 직접 접촉하는 외층은 1종 이상의 실리콘 화합물의 화학 증착에 의해 형성시키고, 상기 초합금 표면과 상기 외층사이에 개재하는 층(들)은 원소 주기율표로부터 선택된 금속 또는 금속류의 1종 이상의 화합물의 화학 증착에 의해 형성시키며, 상기 층(들)은 그 층의 팽창 계수가 상기 외층의 팽창 계수보다 크고 상기 초합금의 팽창 계수보다 작은 범위가 되도록 선택된다.

Description

니켈 및 철을 주성분으로 하는 초합금으로 된 금속 재료에 대한 부동화 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (13)

  1. 반응기 또는 요로의 벽에 대한 구성 재료로서 사용되는 3중량% 이하의 알루미늄을 함유하고 니켈과 철을 주성분으로 하는 초합금으로 된 금속 표면에 대한 부동화 방법에 있어서, 상기 초합금을 고온에서 탄화수소를 함유하는 부식성 대기와 접촉하거나 또는 고온에서 산화성 기체를 함유하는 대기와 접촉하게 되는 하나 이상의 표면상에서 층을 구성하는 성분(들)의 연속적인 화학 증착으로부터 형성된 2이상의 연속하는 층들로 피복하되, 부식성 대기와 직접 접촉하는 외층은 1종 이상의 실리콘 화합물의 화학 증착에 의해 형성시키고, 상기 초합금 표면과 상기 외층사이에 개재하는 층(들)은 원소 주기율표로부터 선택된 금속 또는 금속류의 1종 이상의 화합물의 화학 증착에 의해 형성시키며, 상기 층(들)은 그 층의 팽창 계수가 상기 외층의 팽창 계수보다 크고 상기 초합금의 팽창 계수보다 작은 범위가 되도록 선택되는 것을 특징으로 하는 방법.
  2. 제1항에 있어서, 상기 초합금이 약 10×10-6내지 약 25×10-6˚K-1의 팽창 계수를 가지는 니켈과 철을 주성분으로 하는 합금이며, 상기 합금은 약 4×10-6내지 약 12×10-6˚K-1의 팽창 계수를 가지는 외층으로 된 2층에 의해 피복되는 방법.
  3. 제1항 또는 제2항에 있어서, 화학 증착에 의해 얻어진 중간 층들이 화학양론적 하합물 또는 고용체인 방법.
  4. 제3항에 있어서, 상기 중간층이 티타늄 카바이드 TiC, 티타늄 나이트라이드 TiN, 알루미늄 나이트라이드, 일반식 TiuAlvNw(이때 u, v 및 w는 양수임)으로 표시되는 나이트라이드류, 및 일반식 TixAlyNz(이때 x, y 및 z는 양수임)으로 표시되는 티타늄의 카보나이트라이드류로 이루어진 군중에서 선택되는 방법.
  5. 제1항 또는 제2항에 있어서, 상기 초합금이 0.1중량% 이상의 탄소를 함유하며, 초합금과 직접 접촉하게 되는 화학 증착에 의해 얻어진 제1피복층이 TiC 및 TixAlyNz(이때 x, y 및 z는 상기 정의한 바와 같음)으로 이루어진 군중에서 선택된 1종 이상의 화학양론적 화합물 또는 1종 이상의 고용체를 포함하는 방법.
  6. 제1항 또는 제2항에 있어서, 부식성 대기와 접촉하게 되는 외층이 Si-Al-O-N-C 시스템으로부터 형성된 1종 이상의 화학양론적 화합물 또는 1종 이상의 고용체의 화학 증착에 의해 얻어지는 피복층인 방법.
  7. 제6항에 있어서, 부식성 대기와 직접 접촉하게 되는 외층이 실리콘 카바이드 또는 실리콘 나이트라이드를 주성분으로 하는 피복층, 또는 이들의 혼합물인 방법.
  8. 제1항 또는 제2항에 있어서, 화학 증착을 약 800℃이상의 온도에서 약 100 내지 약 90,000 파스칼의 압력하에 수행하는 방법.
  9. 제8항에 있어서, 상기 압력이 약 1,000 내지 10,000 파스칼인 방법.
  10. 제1항에 있어서, 상기 금속 표면이 탄화수소의 증기 분해용 요로 튜브의 하나 이상의 내벽인 방법.
  11. 제10항에 있어서, 상기 증기 분해 요로 튜브를 증기 분해 요로내에 파이프 기구를 조립하기 전에 외부계상에서 부동화시키는 방법.
  12. 제10항에 있어서, 상기 증기 분해 요로 튜브를 증기 분해 요로내에 파이프 기구를 조립한 후에 동일계상에서 부동화시키는 방법.
  13. 3중량% 이하의 알루미늄을 함유하는 니켈과 철을 주성분으로 하는 초합금을 포함하며 제1항 내지 제8항 중 어느 한 항에서 정의한 방법에 의해 얻어진 부동화 피복층을 구비하는 제품.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950017031A 1994-06-24 1995-06-23 니켈및철을주성분으로하는초합금으로된금속재료의부동화방법 KR100340781B1 (ko)

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Application Number Priority Date Filing Date Title
FR9407907 1994-06-24
FR94-07907 1994-06-24
FR9407907A FR2721622B1 (fr) 1994-06-24 1994-06-24 Méthode de passivation de pièces métalliques en super-alliage à base de nickel et de fer.

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KR960001166A true KR960001166A (ko) 1996-01-25
KR100340781B1 KR100340781B1 (ko) 2002-10-31

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US (1) US6524402B1 (ko)
EP (1) EP0688889B1 (ko)
JP (1) JPH0849056A (ko)
KR (1) KR100340781B1 (ko)
CN (1) CN1083018C (ko)
AT (1) ATE195983T1 (ko)
DE (1) DE69518586T2 (ko)
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US6524402B1 (en) 2003-02-25
ATE195983T1 (de) 2000-09-15
CN1122379A (zh) 1996-05-15
DE69518586D1 (de) 2000-10-05
CN1083018C (zh) 2002-04-17
EP0688889A1 (fr) 1995-12-27
JPH0849056A (ja) 1996-02-20
DE69518586T2 (de) 2001-01-04
FR2721622B1 (fr) 1997-11-21
FR2721622A1 (fr) 1995-12-29
KR100340781B1 (ko) 2002-10-31
EP0688889B1 (fr) 2000-08-30

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