Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Characterization of High Temperature Mechanical Properties of Cast Stainless Steels for Exhaust Manifold

배기다기관용 주강소재의 고온특성 평가

  • 이규동 (강릉대학교 금속재료공학과) ;
  • 하태권 (강릉대학교 금속재료공학과) ;
  • 정재영 (포항산업과학연구원 비철제련연구단)
  • Published : 2009.06.01
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Abstract

Automobile industries have been focusing their efforts on the development of exhaust manifolds using high temperature stainless steels. Exhaust manifolds fabricated with stainless steels can be categorized into tubular and cast ones. The former is usually manufactured by forming and welding process and the latter by vacuum casting process. In the present study, high temperature mechanical properties of 5 austenitic and 4 ferritic stainless steels were investigated by performing a series of high temperature tensile and low cycle fatigue tests. One of the austenitic stainless steels was vacuum cast and the others sand cast. Fatigue life of ferritic stainless steels was higher than that of austenitic ones.

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References

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