摘要
目的研究AZ61镁合金中合金元素成分分析过程中的不确定度因素,以提高分析结果的准确性。方法采用微波消解仪消解样品,以电感耦合等离子体发射光谱仪(ICP-OES)测定AZ61镁合金中锌、锰、铝元素的含量。分析测试过程中产生不确定度的因素,并且进行评定和计算。结果采用微波消解-ICP-OES法测定镁合金中锌、锰、铝元素的含量时,测量不确定度主要由样品溶液稀释、移液枪、标准曲线以及测试的重复性引起,AZ61镁合金主要的合金成分为锌(1.1270%±0.0433%)、锰(0.1797%±0.0064%);铝(6.4468%±0.2029%)。结论对分析过程中产生的不确定度因素进行分析及评定,可以确保分析结果的可靠性以及准确性,从而更好地控制镁合金的性能,提高镁合金的装备环境适应性。
Objective To improve the accuracy of the analysis results of AZ61 magnesium alloy elements by studying the uncertainty factors in the analyzing alloying elementary composition. Methods The sample was digested by a microwave digestion instrument. The contents of Zn, Mn, Al in AZ61 magnesium alloy were determined by inductively coupled plasma emission spectrometer（ICP-OES）. The uncertainty factors in the test process were analyzed, evaluated and calculated. Results When determining contents of Zn, Mn and Al in magnesium alloy with the microwave digestion-ICP-OES method, the measurement uncertainty were mainly caused by dilution of sample solution, liquid-transfering gun, standard curve and repeatability. The contents of AZ61 magnesium alloy were Zn（1.1270%±0.0433%）, Mn（0.1797%±0.0064%）, Al（6.4468%±0.2029%）. Conclusion Based on analysis and evaluation of uncertainty, the accuracy of the results can be guaranteed and the performance of magnesium alloys can be better controlled so that the environment adaptability of magnesium alloy can be improved.
作者
李春梅
刘传噗
万体智
LI Chun-mei1,2,3,LIU Chuan-pu1,2,3,WAN Ti-zhi1,2(a. College of Materials Science and Engineering; b. Electron Microscope Center; c. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, Chin)
出处
《装备环境工程》
CAS
2018年第8期55-58,共4页
Equipment Environmental Engineering
基金
国家自然科学基金青年基金(51704053)
重庆市基础科学与前沿技术研究专项项目(cstc2017jcyj BX0040)
