| 含氮ODS-310奥氏体钢粉末机械合金化的研究 |
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| 引用本文： | 王曼,周张健,陈万华,户赫龙,李少夫.含氮ODS-310奥氏体钢粉末机械合金化的研究[J].粉末冶金工业,2012,22(4):9-13. |
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| 作者姓名： | 王曼 周张健 陈万华 户赫龙 李少夫 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家重点基础研究发展计划，超临界水堆关键材料设计及科学研究 |
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| 摘 要： | 以雾化预合金粉(成分为Fe-25Cr-20Ni)、Ti粉和纳米Y2O3为原料(成分配比为Fe-25Cr-20Ni+3%Ti+3%Y2O3),通过在氮气气氛中高能球磨的方式实现了原始粉末的机械合金化。在球磨转速、球料比、球磨气氛不变的情况下,研究了球磨时间对机械合金化效果、粉末微观形貌及氮含量的影响。球磨后的粉末在900、1 100和1 200℃下做退火处理,研究了退火温度对粉末析出相的影响。实验结果表明球磨50h后的氧化物弥散强化(oxide dispersionstrengthened,ODS)-310奥氏体钢粉末有非晶相生成。
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| 关 键 词： | 机械合金化 ODS-310奥氏体 氮含量 非晶 |
INVESTIGATION OF ODS-310 AUSTENITIC POWDERS PREPARED BY MECHANICAL ALLOYING UNDER NITROGEN ATMOSPHERE |
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| WANG Man
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ZHOU Zhang-jian
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CHEN Wan-hua
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HU He-long
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LI Shao-fu.INVESTIGATION OF ODS-310 AUSTENITIC POWDERS PREPARED BY MECHANICAL ALLOYING UNDER NITROGEN ATMOSPHERE[J].Powder Metallurgy Industry,2012,22(4):9-13. |
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| Authors: | WANG Man ZHOU Zhang-jian CHEN Wan-hua HU He-long LI Shao-fu |
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| Affiliation: | (School of Material Science and Technology,University of Science and Technology Beijing,Beijing 100083,China) |
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| Abstract: | Oxide dispersion strengthened(ODS) 310 austenitic powders were prepared from pre-alloyed and elemental powders(Fe-25Cr-20Ni+3wt.%Ti+3wt.%Y2O3) by mechanical alloying at different milling intervals.The effects of milling time on morphology,extent of mechanical alloying and nitrogen contents of powders were investigated while maintaining other milling parameters constant.The as-milled powders were then annealed in vacuum at 900,1 100 and 1 200℃ to study the precipitations.The results showed that an amorphous phase formsed after milling for 50 h. |
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| Keywords: | mechanical alloying ODS-310 austenitic powders nitrogen contents amorphous |
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