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KR20180063303A 핫 프레스 부재 및 그의 제조 방법 审中-公开

  • 专利标题： 핫 프레스 부재 및 그의 제조 방법
  • 专利标题（英）： KR20180063303A - Hot pressing member, and a method of producing
  • 申请号： KR20187013032
    申请日： 2016-10-03
  • 公开(公告)号： KR20180063303A
    公开(公告)日： 2018-06-11
  • 优先权： JP2015205751 2015-10-19
  • 主分类号： C22C38/04
  • IPC分类号： C22C38/04 ;  C21D8/02 ;  C22C38/02 ;  C22C38/06 ;  C23C30/00
핫 프레스 부재 및 그의 제조 방법
摘要：
인장강도 TS: 1500㎫이상의고강도와, 균일신장 uEl: 6.0% 이상의고연성과, 열처리(베이킹도장)를실시했을때에항복응력 YS가 150㎫이상증가하는우수한열 처리경화성을모두겸비하는핫 프레스부재를제공한다. 본발명의핫 프레스부재는, 소정의(특히 0.090% 이상 0.30% 미만의저C, 또한, 3.5% 이상 11.0% 미만의고Mn) 성분조성과, 체적률로 70.0% 이상의마르텐사이트상과, 체적률로 3.0% 이상 30.0% 이하의잔류오스테나이트상을포함하는조직을갖고, 전위밀도가 1.0×10/㎡이상인것을특징으로한다.
摘要（英）：

The tensile strength TS: at least 1500㎫ high strength and uniform elongation uEl: 6.0% or more goyeon performance, heat treatment hot pressing member for yield stress YS is combined with both the excellent heat-curing treatment to more than 150㎫ when subjected to (baked coating) It provides. Hot pressing member of the present invention, certain (especially low of less than 0.30% to 0.090% C, also, is less than 11.0%, less than 3.5% of high Mn) composition and, more than 70.0% by volume ratio of martensite phase and the volume ryulro has a tissue containing a retained austenite phase of 3% or more than 30.0%, characterized in that the dislocation density of not less than 1.0 × 10 16 / ㎡.

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