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| 合金化提高碳化物高温化学稳定性的研究 | |
| 引用本文： | 解荣军,武文忠,邢建东,王恩泽. 合金化提高碳化物高温化学稳定性的研究[J]. 机械工程学报, 1997, 33(2): 8-13，3 |
| 作者姓名： | 解荣军 武文忠 邢建东 王恩泽 |
| 作者单位： | 西安交通大学机械工程学院 |
| 摘 要： | 对含不同合金元素Mo、W和B的高Cr-Ni铸铁在大气中进行了800℃及950℃的恒量氧化试验。结果表明，经Mo、W和B适量合金化后的碳化物在高温下的化学稳定性有不同程度的提高。从原子间结合力和合金热力学的角度讨论了合金元素对（Cr，Fe）7C3型碳化物高温化学稳定性的影响。 |
| 关 键 词： | 合金铸铁 化学稳定性 键能 碳化物 自由能 |
INVESTIGATION ON CHEMICAL STABILITY OF ALLOYCARBIDES AT HIGH TEMPERATURE |
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| Xie Rongjun Wu Wenzhong Xing Jiandong Wang Enze. INVESTIGATION ON CHEMICAL STABILITY OF ALLOYCARBIDES AT HIGH TEMPERATURE[J]. Chinese Journal of Mechanical Engineering, 1997, 33(2): 8-13，3 | |
| Authors: | Xie Rongjun Wu Wenzhong Xing Jiandong Wang Enze |
| Affiliation: | Xi'an Jiaotong University |
| Abstract: | Oxidation tests of high Cr-Ni cast irons containing Mo, W and B are carried out at 800℃and 950℃ in air. It was shown by the results that the high temperature stability of (Cr, Fe)7C3 carbide containing appropriate contains of Mo, W or B was increased to some extent. The effect of the alloy elements on chemical stability of the carbide at high temperature is discussed from the viewpoints of the bonding forces between atoms and the Gibbs free energy. |
| Keywords: | Alloyed cast iron Carbide Chemical stability Bond energy Free energy |
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