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| Ni_(40.5)Co_(32.5)Al_(27)马氏体合金的冷变形和再结晶行为 | |
| 引用本文： | 罗丰华,陈嘉砚,及川胜成,石田清仁.Ni_(40.5)Co_(32.5)Al_(27)马氏体合金的冷变形和再结晶行为[J].塑性工程学报,2006,13(3):78-82. |
| 作者姓名： | 罗丰华 陈嘉砚 及川胜成 石田清仁 |
| 作者单位： | 1. 中南大学,粉末冶金国家重点实验室,长沙,410083 2. 钢铁研究总院,结构材料研究所,北京,100081 3. 日本东北大学,工学部材料科学系,仙台,980-8579 |
| 基金项目： | 国家留学回国人员科研启动基金 |
| 摘 要： | 采用金相观察和硬度测定方法研究了马氏体Ni40.5Co32.5Al27合金的冷轧组织和再结晶行为。结果表明,马氏体Ni40.5Co32.5Al27合金有优异的冷加工能力,其临界冷轧压下量在46.2%~46.9%之间;马氏体相β′和延性γ相变形协调性好,合金经大变形后两相相界没有微裂纹。冷轧Ni40.5Co32.5Al27合金在1073K~1173K发生强烈回复,在1273K温度发生完全再结晶,随着淬火温度的升高合金中γ相体积分数不断减少,β′相晶粒不断长大。 |
| 关 键 词： | 冷轧 Ni-Co-Al合金 马氏体 |
| 文章编号： | 1007-2012（2006）03-0078-05 |
| 收稿时间： | 2005-08-18 |
| 修稿时间： | 2006-02-15 |
Cold rolling deformation and recrystallization behavior of martensite Ni40.5Co32.5Al27 alloy |
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| LUO Feng-hua,CHEN Jia-yan,OIKAWA Katsunari,ISHIDA Kiyohito.Cold rolling deformation and recrystallization behavior of martensite Ni40.5Co32.5Al27 alloy[J].Journal of Plasticity Engineering,2006,13(3):78-82. | |
| Authors: | LUO Feng-hua CHEN Jia-yan OIKAWA Katsunari ISHIDA Kiyohito |
| Abstract: | The cold rolling deformation ability of martensite Ni_(40.5)Co_(32.5)Al_(27) alloy was evaluated,and its cold rolling microstructure and recrystallization behavior were investigated by metallography and micro hardness methods.It is found that martensite based Ni_(40.5)Co_(32.5)Al_(27) alloy exhibits excellent cold workability with a cold rolling critical reduction ratio of 46.2%～46.9%.Excellent compatibility in shape changes of martensite β′ phase and ductile γ phase results in free of cracks in their interface after heavy cold rolling.Strong recovery process happens in the temperature range of 1073K~1173K and completed recrystallized process takes place at 1273K for cold rolling Ni_(40.5)Co_(32.5)Al_(27) alloy.The volume fraction of γ phase decreases with the increasing of quenched temperature and martensitic β′ grains grow at the same process. |
| Keywords: | cold rolling Ni-Co-Al alloy martensite |
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