| GH3230合金M23C6型碳化物的析出行为 |
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| 引用本文： | 杜星霖,鞠泉,马惠萍,杜金辉. GH3230合金M23C6型碳化物的析出行为[J]. 金属热处理, 2021, 46(2): 50-54. DOI: 10.13251/j.issn.0254-6051.2021.02.009 |
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| 作者姓名： | 杜星霖 鞠泉 马惠萍 杜金辉 |
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| 作者单位： | 钢铁研究总院,北京 100081;北京钢研高纳科技股份有限公司,北京 100081 |
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| 摘 要： | 研究了固溶态GH3230合金在800~1100 ℃时效不同时间下的碳化物析出行为。结果表明:GH3230合金固溶态组织主要为γ相+初生粒状碳化物M6C+少量晶界粒状碳化物M23C6。试验合金在800~1100 ℃短时时效后,晶界和晶内析出的碳化物主要为M23C6型。其中晶界粒状M23C6型碳化物有沿着晶内长大的倾向,并逐渐变成胞状碳化物。在同一时效温度下,晶内碳化物析出数量会随着时效时间的增加而增加,此后会逐渐回溶,回溶开始的时间会随着时效温度的提高而逐渐提前。
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| 关 键 词： | GH3230合金 固溶处理 时效处理 显微组织 M23C6型碳化物 |
| 收稿时间： | 2020-07-25 |
Precipitation behavior of M23 C6 type carbides in GH3230 alloy |
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| Du Xinglin,Ju Quan,Ma Huiping,Du Jinhui. Precipitation behavior of M23 C6 type carbides in GH3230 alloy[J]. Heat Treatment of Metals, 2021, 46(2): 50-54. DOI: 10.13251/j.issn.0254-6051.2021.02.009 |
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| Authors: | Du Xinglin Ju Quan Ma Huiping Du Jinhui |
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| Affiliation: | 1. Central Iron and Steel Research Institute, Beijing 100081, China; 2. Beijing CISRI-GAONA Materials and Technology Co., Ltd., Beijing 100081, China |
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| Abstract: | Precipitation behavior of M23C6type carbides in solution-treated GH3230 alloy when aged at the range of 800-1100℃were studied.The results show that,the solution-treatment microstructure of the GH3230 alloy consists of γphase,primary granular carbides of M6 C,and granular carbides of M23C6at the grain boundary.After short time aging treatment at the range of 800-1100℃,the M23C6type carbides are precipitated at the grain boundary and in the grain.The granular carbides of M23C6at the grain boundary are prone to grow along the grain,and gradually become cellular carbides.At the same aging temperature,the amount of carbides in the grain increases with the increase of aging time,and then gradually redissolves,the beginning of which can gradually advance with the increase of aging temperature. |
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| Keywords: | GH3230 alloy solution treatment aging treatment microstructure M23C6type carbides |
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