| N/Al比值对A508-3钢的组织和性能的影响 |
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| 引用本文： | 胡本芙,卜勇,吴承建,林岳萌.N/Al比值对A508-3钢的组织和性能的影响[J].钢铁,1999,34(1):39-43. |
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| 作者姓名： | 胡本芙 卜勇 吴承建 林岳萌 |
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| 作者单位： | 1. 北京科技大学
2. 第一重型机械集团公司 |
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| 摘 要： | 研究了核电站压力容器用Ａ５０８－３钢的酸溶氮与酸溶铝的不同比值（Ｎ／Ａｌ）对其组织和性能的影响。结果表明，Ｎ／Ａｌ比值增大，钢的塑性提高，但强度变化不大。韧脆转变温度（ＦＡＴＴ）和无塑性转变温度（ＮＤＴＴ）降低。当Ｎ／Ａｌ比值为０．３３￣０．５４时，ＦＡＴＴ和ＮＤＴＴ明显降低；当Ｎ／Ａｌ比值为０．５４￣０．８１时，ＦＡＴＴ和ＮＤＴＴ基本不变。显微组织分析结果表明，随Ｎ／Ａｌ比值的增大，晶粒细化；贝
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| 关 键 词： | 压力容器用钢 N/Al比值 晶粒度 碳化物 |
EFFECT OF N/Al RATIO ON MICROSTRUCTURE AND PROPERTIES OF A508-3 STEEL FOR NUCLEAR REACTOR PRESSURE VESSEL |
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| HU Benfu,PU Yong,WU Chengjian,LIN Yuemeng.EFFECT OF N/Al RATIO ON MICROSTRUCTURE AND PROPERTIES OF A508-3 STEEL FOR NUCLEAR REACTOR PRESSURE VESSEL[J].Iron & Steel,1999,34(1):39-43. |
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| Authors: | HU Benfu PU Yong WU Chengjian LIN Yuemeng |
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| Affiliation: | HU Benfu PU Yong WU Chengjian (University of Science and Technology Beijing) LIN Yuemeng (No 1 Heavy Machinery Group Corp ) |
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| Abstract: | The effect of the acid soluble nitrogen/acid soluble aluminum ratio on the microstructure and properties of A508 3 steel for nuclear reactor pressure vessel has been investigated The experimental results show that the strength of the steel little changes as N/Al ratio increases,whereas the ductility increases and the FATT and NDTT decrease The FATT and NDTT decrease more obviously as N/Al ratio varies from 0 33 to 0 54,when N/Al ratio are 0 54 and 0 81 the FATT and NDTT not change The microstructure shows that as N/Al ratio increasing the grain refines,the size of bainite ferrite plates and the average diameter of carbides decrease,the carbides become more disperisive |
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| Keywords: | pressure vessel steel N/Al ratio grain grade carbide |
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