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| Determination of Oxygen Content in Nickel-Titanium Alloy by Inert Gas Fusion-infrared Absorption Method |
| Received:February 27, 2012 Revised:October 12, 2012 |
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| DOI：doi:10.3969/j.issn.2095-1035.2012.04.010 |
| KeyWord:inert gas fusion-infrared absorption method;NiTi alloy; oxygen content |
| Author | Institution |
| WANG Kuan |
西北有色金属研究院，陕西 西安 |
| LI Bo |
西北有色金属研究院，陕西 西安 |
| SUN Baolian |
西北有色金属研究院，陕西 西安 |
| WANG Hui |
西北有色金属研究院，陕西 西安 |
| SHI Xinceng |
西部金属材料股份有限公司，陕西 西安 |
| LIANG Qinhua |
西北有色金属研究院，陕西 西安 |
| ZHENG Wei |
西北有色金属研究院，陕西 西安 |
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| Abstract: |
| A new method for determination of the oxygen content in nickel-titanium (NiTi ) alloy by inert gas fusion-infrared absorption method was developed. The effects of flux, sample weight, minimum analysis time and comparator level on determination results were investigated. The oxygen contents in the NiTi alloys were determined at the following conditions: the flux ( nickel) amount of 1g, the analytical powers of 4.5 kW to 5.5 kW, the analytical time of 30s, the comparator level of 2. The relative standard deviations of oxygen is 1.8 %. The determination results of the standard samples are consistent with the certified values. The inert gas fusion-infrared absorption method is simple, quick and accurate. It was proved that this method can meet the requirement for application in production process. The development of this method is significant for industrial process research and production quality control. |
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