Ferrite system stainless steel having excellent nacl-induced hot
corrosion resistance and high temperature strength
    7.
    发明授权
    Ferrite system stainless steel having excellent nacl-induced hot corrosion resistance and high temperature strength 失效
    铁氧体系不锈钢具有优异的耐腐蚀性和耐高温强度

    公开(公告)号:US5427634A

    公开(公告)日:1995-06-27

    申请号:US162054

    申请日:1993-12-08

    IPC分类号: C22C38/28 C22C38/26

    CPC分类号: C22C38/28

    摘要: To simultaneously satisfy retention of a high temperature strength at an initial stage, and during use, and NaCl-induced hot corrosion resistance as well as oxidation resistance in a high temperature member used in an exhaust system of automobiles, the present invention provides a heat-resistant ferrite system stainless steel which has a low (C+N) content, reduces a free (C+N) content by adding Ti or Zr, and can secure sufficiently efficiently solid solution strengthening and NaCl-induced hot corrosion resistance for a long time by sufficiently securing solid solution contents of W, Nb and Mo.

    摘要翻译: PCT No.PCT / JP93 / 00453 Sec。 371日期1993年12月8日第 102(e)日期1993年12月8日PCT提交1993年4月9日PCT公布。 公开号WO93 / 21356 日期为1993年10月28日。为了同时满足初始阶段和使用期间的高温强度的保持,以及在汽车排气系统中使用的高温部件中的NaCl诱导的耐热腐蚀性以及耐氧化性, 本发明提供一种具有低(C + N)含量的耐热铁氧体系不锈钢,通过添加Ti或Zr来减少游离(C + N)含量,并且可以确保足够有效的固溶强化和NaCl诱导 通过充分确保W,Nb和Mo的固溶含量,长时间耐热腐蚀。