摘要
根据JJF 1059-1999和GB/T 10561-2005,采用光学显微镜及金相图像分析软件对某轧制比大于3的LZ50钢轴坯的非金属夹杂物长度进行了观察和测量,按A法检验,放大100倍观察,对检测非金属夹杂物长度的测量不确定度来源进行了分析,并对每个不确定度分量进行了评定,最终给出了扩展不确定度及测量结果的不确度报告。结果表明:LZ50钢轴坯中的非金属夹杂物主要为C类细系硅酸盐夹杂物;测量结果的不确定度报告为,最严重视场C类非金属夹杂物总长度的测量值为(632±6)μm,k=2。
According to the standard of JJF 1059-1999 and GB/T 10561-2005,the length of non-metallic inclusions in LZ50 steel shaft blank whose rolling proportion is more than 3 was observed by optical microscope and measured by metallographical analysis software in the multiple of 100 by method A of GB/T 10561-2005.The source of uncertainty in measuring the length of non-metallic inclusions was analyzed,every uncertainty component was evaluated,and finally the expanded uncertainty and measuring uncertainty report was offered.The results show that the main inclusions in LZ50 steel were type C silicate inclusions.The measuring uncertainty report was the measurement result of length of type C non-metallic inclusions was（632±6） μm,k=2.
出处
《理化检验（物理分册）》
CAS
2010年第10期637-640,共4页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
非金属夹杂物
长度
不确定度评定
non-metallic inclusions
length
uncertainty evaluation
