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STAINLESS STEEL HAVING EXCELLENT INTERGRANULAR CORROSION RESISTANCE OF HEAT-AFFECTED ZONE

机译：热影响区具有优异的耐晶间腐蚀性能的不锈钢

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摘要

PURPOSE:To obtain the title stainless steel by adding specific amt. of La to an SUS 304 stainless steel having specific compsn. constituted of C, Si, Mn, P, S, Ni, Cr and Fe. CONSTITUTION:La, 0.02 to 0.10%, by weight, is added to an SUS 304 stainless steel constituted of 0.03 to 0.08% C, =1.00% Si, =2.00% Mn, =0.045% P, =0.030% S, 8.00 to 10.50% Ni, 18.00 to 20.00% Cr and the balance Fe. By the addition of trace amounts of La which has the bonding strength with C stronger than Cr, the deposition of Cr carbide is suppressed at the time of welding to prevent the generation of a Cr-lacking layer. In this way, the intergranular corrosion resistance of the heat-affected zone in the above stainless steel can be improved.

机译：目的：通过添加特定的amt获得标题不锈钢。将La制成具有特定成分的SUS 304不锈钢。由C，Si，Mn，P，S，Ni，Cr和Fe组成。组成：将0.02至0.10％（重量）的La添加到由0.03至0.08％C，<= 1.00％Si，<= 2.00％Mn，<= 0.045％P，<= 0.030％的SUS 304不锈钢制成S，Ni 8.00至10.50％，Cr 18.00至20.00％，其余为Fe。通过添加与Cr具有比Cr强的结合强度的痕量的La，在焊接时抑制了Cr碳化物的析出，防止了Cr缺乏层的产生。这样，可以提高上述不锈钢中的热影响区的耐晶界腐蚀性。

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公开/公告号JPH028348A

专利类型
公开/公告日1990-01-11

原文格式PDF
申请/专利权人 POWER REACTOR & NUCLEAR FUEL DEV CORP;
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申请/专利号JP19880158974
发明设计人 SASAO NOBUYUKI;UEHARA NORIFUMI;
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申请日1988-06-27
分类号C22C38/00;C22C38/40;
国家 JP
入库时间 2022-08-22 06:20:20

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