کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6745420 | 504976 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of tantalum content on microstructure and tensile properties of CLAM steel
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Four ingots of China Low Activation Martensitic (CLAM) steel with different Tantalum (Ta) contents of 0.027Â wt%, 0.078Â wt%, 0.15Â wt% and 0.18Â wt%, respectively, were produced by vacuum induction furnace. Microstructure observation and tensile tests were performed to make clear the effect of Ta content on the microstructure and properties of CLAM steel. Experimental results showed that the content of Ta-riched MX particles increased with Ta content increasing from 0.027Â wt% to 0.18Â wt%, and the Cr-riched M23C6 carbides reversed. Meanwhile, the grain size became finer with the increase of Ta content. However, the effect of Ta content on grain size refinement weakened when Ta content was higher than 0.15Â wt% in this study. Both the grain size and precipitates could affect the tensile properties of the four ingots. The precipitation strengthening of Cr-riched M23C6 carbides was considered to be the main possible reason that CLAM steel with Ta content of 0.027Â wt% had the highest strength. In general, there was little difference in strength of the four ingots with the change of Ta content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 104, March 2016, Pages 21-27
Journal: Fusion Engineering and Design - Volume 104, March 2016, Pages 21-27
نویسندگان
Xiangwei Zhai, Shaojun Liu, Yanyun Zhao,