首页> 外国专利> PRECIPITATION HARDENING TYPE FERRITE-FREE STAINLESS STEEL

PRECIPITATION HARDENING TYPE FERRITE-FREE STAINLESS STEEL

机译:沉淀硬化型无铁素体不锈钢

摘要

PURPOSE:To obtain a stainless steel with superior resistance to corrosion and fatigue due to sea water by adding specified percentages of C, Si, Mn, Ni, Cr, Cu, Mo, Nb, Al, N, B and Y to Fe and by specifying the ferrite content. CONSTITUTION:A steel consisting of 0.01-0.06% C, =1% Si, =1% Mn, 3.80- 4.80% Ni, 15.0-16.0% Cr, 3.0-4.0% Cu, 0.30-1.00% Mo, 0.2-0.6% Nb, =0.05% Al, 0.01-0.04% N, 0.001-0.050% B and/or 0.005-0.050% Y and the balance Fe with inevitable impurities and satisfying Nb/(C+N)=3.0 is prepared. The steel is subjected to soln. heat treatment at about 1,000-1,500 deg.C to cause martensitic transformation. Thus, a precipitation hardening type stainless steel having a structure contg. =3% delta-ferrite and =5% austenite is obtd.
机译:用途:通过向Fe中添加指定百分比的C,Si,Mn,Ni,Cr,Cu,Mo,Nb,Al,N,B和Y,获得一种具有优异的耐海水腐蚀和疲劳性能的不锈钢。指定铁素体含量。组成:一种由0.01-0.06%C,<= 1%Si,<= 1%Mn,3.80- 4.80%Ni,15.0-16.0%Cr,3.0-4.0%Cu,0.30-1.00%Mo,0.2-制备0.6%Nb,<= 0.05%Al,0.01-0.04%N,0.001-0.050%B和/或0.005-0.050%Y,余量的Fe具有不可避免的杂质且满足Nb /(C + N)> = 3.0 。钢材要经过溶解处理。在约1,000-1,500℃下进行热处理以引起马氏体相变。因此,具有结构连续的沉淀硬化型不锈钢。 <= 3%的铁素体和<= 5%的奥氏体。

著录项

  • 公开/公告号JPS5993858A

    专利类型

  • 公开/公告日1984-05-30

    原文格式PDF

  • 申请/专利权人 HITACHI KINZOKU KK;

    申请/专利号JP19820202539

  • 发明设计人 KUKI HIDEKATSU;

    申请日1982-11-18

  • 分类号C22C38/00;C22C38/54;

  • 国家 JP

  • 入库时间 2022-08-22 09:29:01

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号