| 船体用钢奥氏体晶粒度显示方法 |
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| 引用本文： | 王英.船体用钢奥氏体晶粒度显示方法[J].理化检验(物理分册),2008,44(7):359-361. |
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| 作者姓名： | 王英 |
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| 作者单位： | 南京钢铁集团技术质量部理化检测中心,南京210035 |
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| 摘 要： | 通过在不同热侵蚀温度下进行的奥氏体晶粒显示试验，表明能显示出船体用钢奥氏体清晰晶界的关键是在保证试样充分淬透（冷却介质为：干冰＋100g／LNaCl水溶液）的前提下，将其放置于侵蚀剂（5g苦味酸＋100mI。冷水＋10mL洗涤剂＋7滴双氧水）中热侵蚀，并一定要控制热侵蚀温度的恒定，同时根据成分的变化，适当调整其温度和时间。
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| 关 键 词： | 奥氏体 晶粒度 淬火 恒温显示 |
RESEARCH ON THE DISPLAY OF AUSTENITIC GRAIN FOR HULL STEEL |
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| WANG Ying.RESEARCH ON THE DISPLAY OF AUSTENITIC GRAIN FOR HULL STEEL[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2008,44(7):359-361. |
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| Authors: | WANG Ying |
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| Affiliation: | WANG Ying (Physical Chemistry Testing Center, the Department of Technical Quality, Nanjing Iron and Steel Group, Nanjing 210035, China) |
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| Abstract: | Through the austenitic grain display test in different heat corrosive temperature, it states that the key to display a clear boundary of the austenite grain in the hull steel is that： based on fully quenched （cooling medium is dry ice and 100 g/L NaC1 solution）, the sample is heat eroded in erosion agent （5 g of picric acid d＋ 100 mL cold water ＋ 10 mL detergent ＋seven drops of hydrogen peroxide） with the constant temperature. At the same time, the heat erosion temperature and time are adjusted appropriately according to the changes in components. |
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| Keywords: | Austenitie Grain size Quench Constant temperature display |
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