| 稀土Ce对含Nb超低膨胀合金组织和夹杂物的影响 |
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| 引用本文： | 蔡波,于一鹏,张敬霖,卢凤双,张建生,张建福. 稀土Ce对含Nb超低膨胀合金组织和夹杂物的影响[J]. 金属功能材料, 2013, 0(1): 8-12 |
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| 作者姓名： | 蔡波 于一鹏 张敬霖 卢凤双 张建生 张建福 |
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| 作者单位： | 钢铁研究总院功能材料研究所 |
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| 摘 要： | 本文利用金相显微镜（OM）、扫描电子显微镜（SEM）和X射线能谱仪（EDAX）,研究了稀土Ce对含Nb超低膨胀合金Fe-32Ni-4.7Co-0.1Nb锻态显微组织和非金属夹杂物的影响。结果表明,添加微量稀土Ce没有改变超低膨胀合金的相组成,仍为单相奥氏体,但细化了合金的锻态组织。添加微量稀土Ce元素,可使超低膨胀合金中硫化物由长条状变为椭圆或球状,改变了合金中硫化物夹杂的形态。
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| 关 键 词： | 超低膨胀合金 稀土Ce 显微组织 夹杂物 |
Effect of Ce on Structure and Nonmentallic Inclusions of Nb-containing Super Invar |
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| CAI Bo,YU Yi-peng,ZHANG Jing-lin,LU Feng-shuang, ZHANG Jian-sheng,ZHANG Jian-fu. Effect of Ce on Structure and Nonmentallic Inclusions of Nb-containing Super Invar[J]. Metallic Functional Materials, 2013, 0(1): 8-12 |
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| Authors: | CAI Bo YU Yi-peng ZHANG Jing-lin LU Feng-shuang ZHANG Jian-sheng ZHANG Jian-fu |
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| Affiliation: | (Central Iron & Steel Research Institute,Beijing 100081,China) |
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| Abstract: | The influence of cerium on the as-forged microstructure and nonmetallic inclusions of Super-Invar alloy Fe-32Ni-4.7Co-0.1Nb was studied systematically by OM,SEM and EDAX.The results show that the addition of trace cerium in Super-Invar alloy doesn＇t change the phase of the Super-Invar alloy Fe-32Ni-4.7Co-0.1Nb which is still γ-phase,however,the as-forged microstructure is refined.The morphology of sulfide inclusion in Super-Invar alloy turns from string to ellipse or sphere with addition of trace cerium and the shape of sulfide inclusion in Super-Invar alloy is changed. |
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| Keywords: | super-invar alloy cerium microstructure inclusions |
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