摘要
用铣样机进行试样表面处理,试验后选取2mm的切削深度,采用火花源原子发射光谱法进行冷镦钢中痕量钙和硼的测定。优化仪器分析条件,采用进口标准样品建立钙和硼的校准曲线。钙和硼的检出限均为0.2μg/g,适用于冷镦钢中质量分数分别为0.000 1%～0.015%的钙和0.000 1%～0.012%硼的测定。对编号为B.S.CA1A的钙硼低合金钢标准样品进行精密度考察,当钙、硼质量分数为0.002 1%和0.001 0%时,其相对标准偏差分别为3.5%和3.9%。对钙硼低合金钢标准样品和冷镦钢实际样品进行分析,测定值与认定值及湿法的测定值基本一致。
The surface of sample was treated by milling sample machine.Trace calcium and boron in cold forging steel was determined by spark source atomic emission spectrometry with the cutting depth of 2mm.The analytical conditions of instrument were optimized.The calibration curves of calcium and boron were established using foreign CRMs.The detection limits of calcium and boron were 0.2 μg/g.This method was applicable for the determination of calcium in the range of 0.000 1%-0.015%（mass fraction）and boron in the range of 0.000 1%-0.012%in cold forging steel.The precision was investigated with calcium-boron low alloy steel CRM of No.B.S.CA1A,when the mass fraction of Ca and B was 0.002 1%and 0.001 0%,the relative standard deviation of the determination was 3.5%and 3.9%,respectively.The calcium-boron low alloy steel CRM and actual cold forging steel samples were analyzed,and the determination results were consistent with those obtained by wet method.
出处
《冶金分析》
CAS
CSCD
北大核心
2013年第7期58-61,共4页
Metallurgical Analysis
关键词
火花源原子发射光谱法
痕量
钙
硼
在线分析
spark source atomic emission spectrometry
trace
calcium
boron
online analysis
