• 제목/요약/키워드: STS304

검색결과 365건 처리시간 0.045초

STS 304 스테인리스강의 대기중 1050~1200℃, 1시간 동안의 산화 (Oxidation of STS304 Stainless Steel between 1050 and 1200℃ for 1 Hour in Air)

  • ;이동복
    • 대한금속재료학회지
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    • 제47권4호
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    • pp.235-241
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    • 2009

  • The STS304 stainless steel was oxidized isothermally and cyclically at temperatures between 1050 and $1200^{\circ}C$ for 1 hr in air. During isothermal oxidation, it displayed good oxidation resistance at $1050^{\circ}C$. However, it suffered from breakaway oxidation above $1100^{\circ}C$, being accompanied with internal oxidation. During cyclic oxidation, it also displayed good oxidation resistance at $1050^{\circ}C$, but it suffered from massive weight loss above $1125^{\circ}C$. The oxide scales formed consisted primarily of $Fe_2O_3$, $Fe_3O_4$ with and without $Cr_2O_3$. They were generally non-adherent.

  • KSCI

Cu-Mn-Si Insert 합금을 이용한 스테인리스강의 액상확산접합에 관한 연구 (A Study on Liquid Phase Diffusion Bonding of STS304 using Cu-Mn-Si Insert alloy)

  • 임종태;안상욱
    • Journal of Welding and Joining
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    • 제15권4호
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    • pp.136-142
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    • 1997

  • In this study, the amorphous foil filler, thickness of 20 - $20~30\mu\textrm{m}$ was made to develop Cu-7.5wt%Mn-7.5wt%Si insert alloy(melting point temperature : solidus line 1003K, liquidus line 1070K). Liquid phase diffusion bonding of 304 stainless steels (STS304), is carried out successfully by using developed Cu-7.5Mn-7.5Si insert alloy. Bonding conditions are taken from bonding pressure of 5MPa, bonding temperatures from 1073K to 1423K varied within 50K and brazing holding times of 0, 30, 60 and 240 minutes. As the results, the tensile strength in the liquid phase diffusion bonding is a little bit lower than that in the solid phase diffusion bonding. The authors find out that the liquid phase diffusion bonding needs lower bonding pressure than the others. Therefore, the liquid phase diffusion bonding had an excellent brazability in which the bonding process showed the typical mechanism of diffusion bonding. In corresponding, the new developed insert alloy of low melting pointed Cu-7.5Mn-7.5Si makes possible brazing between the STS304.

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