| 光学显微镜检测非金属夹杂物长度的不确定度评定 |
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| 引用本文： | 王立辉. 光学显微镜检测非金属夹杂物长度的不确定度评定[J]. 理化检验(物理分册), 2010, 0(10): 637-640 |
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| 作者姓名： | 王立辉 |
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| 作者单位： | 中国北车集团齐齐哈尔轨道交通装备有限责任公司,齐齐哈尔161002 |
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| 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。
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| 关 键 词： | 非金属夹杂物 长度 不确定度评定 |
Uncertainty Evaluation on Measurement Results of Length of Non-metallic Inclusions |
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| WANG Li-hui. Uncertainty Evaluation on Measurement Results of Length of Non-metallic Inclusions[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2010, 0(10): 637-640 |
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| Authors: | WANG Li-hui |
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| Affiliation: | WANG Li-hui(Qiqihar Railway Rolling Stock(Group) Co.Ltd.,CNR,Qiqihaer 161002,China) |
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| Abstract: | 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. |
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| Keywords: | non-metallic inclusions length uncertainty evaluation |
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