| 固溶处理对800H合金组织和硬度的影响 |
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| 引用本文： | 黄燕,戴起勋,李冬升,程晓农,陶亚平,刘瑜. 固溶处理对800H合金组织和硬度的影响[J]. 金属热处理, 2012, 37(3): 73-76 |
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| 作者姓名： | 黄燕 戴起勋 李冬升 程晓农 陶亚平 刘瑜 |
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| 作者单位： | 1. 江苏大学材料科学与工程学院,江苏镇江,212013
2. 江苏银环精密钢管股份有限公司,江苏宜兴,214203 |
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| 基金项目： | 江苏省科技成果转化项目，镇江市工业支撑项目 |
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| 摘 要： | 研究了不同固溶处理工艺对800H合金组织和硬度的影响。结果表明,不同固溶处理温度对800H合金晶粒尺寸有很大影响;1050～1200℃固溶处理时,晶粒正常长大,晶粒长大激活能Q=309.3 kJ/mol;1050～1100℃固溶处理后,晶内仍有大量未固溶的富铬碳化物;1150℃固溶后,晶内富铬碳化物基本溶解;在1200℃固溶处理时,随着保温时间的延长,晶粒正常长大;晶粒尺寸与硬度符合Hall-Petch关系。
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| 关 键 词： | 800H合金 固溶处理 显微组织 硬度 |
Effect of solution treatment on microstructure and hardness of 800H alloy |
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| HUANG Yan,DAI Qixun,LI Dongsheng,CHENG Xiaonong,TAO Yaping,LIU Yu. Effect of solution treatment on microstructure and hardness of 800H alloy[J]. Heat Treatment of Metals, 2012, 37(3): 73-76 |
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| Authors: | HUANG Yan DAI Qixun LI Dongsheng CHENG Xiaonong TAO Yaping LIU Yu |
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| Affiliation: | 1.School of Materials Science and Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China; 2.Jiangsu Yinhuan Precision Steel Tube Co.,Ltd.,Yixing Jiangsu 214203,China) |
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| Abstract: | Effect of solution treatment on microstructure and hardness of 800H alloy was investigated.The results show that different solution treatment temperature has a great impact on grain size of 800H alloy.The grain grows up normally and the activation energy(Q) of grain growth is 309.3 kJ/mol at 1050-1200 ℃ solution.There are a large amount of undissolved chromium carbide in grain after solution treatment at 1050-1100 ℃.Chromium carbide in grain dissolves almost after 1150 ℃.At 1200 ℃ solution treatment,the grain grows up normally with the hold time increasing,and the relationship between grain size and hardness of 800H alloy conform to Hall-Petch relation. |
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| Keywords: | 800H alloy solution treatment microstructure hardness |
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