双相不锈钢有害沉淀相检验的探讨

Research on Detrimental Intermetallic Phase Test of Duplex Stainless Steel

双相不锈钢有害沉淀相检验是最重要的产品质量检验,分析了ASTMA923标准的B法与通常的钢铁冲击韧性试验方法,以及C法与常用的不锈钢点蚀试验方法的特点。得到了ASTMA923标准的B法与通常的钢铁冲击韧性试验方法在目的、试验温度、验收标准、试件表面要求是不同,C法与常用的不锈钢点蚀试验方法在试验目的、腐蚀速度的计算方法、试验温度、试验时间、验收标准等方面是不同的结论。其结果对于双相不锈钢有害沉淀相实验室检验具有参考意义。

Detecting detrimental intermetallic phase is the most important test of product quality in duplex stainless steel.ASTM A923 is a standard for the experimental test.Analyzed are Method B in ASTM A923 and the common steel V notch impact test as well as Method C in ASTM A923 and the usual pitting test.The conclusion is that there are differences between Method B in ASTM A923 and the common steel V notch impact test in test objectives,test temperatures,check and acceptance criteria,and surface conditions of specimen and there are differences between Method C in ASTM A923 and the usual pitting test in calculation methods of corrosion rates,test temperatures,test time and check and acceptance criteria.The conclusion is referable for detrimental intermetallic phase experimental test of duplex stainless steel.