Influence of non-metal inclusions on mechanical properties of CLAM steel
Influence of non-metal inclusions on mechanical properties of CLAM steel
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DOI：
10.1016/j.fusengdes.2008.12.037
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发表时间：
2009-06
期刊：
影响因子：
--
通讯作者：
Shaojun Liu;Qunying Huang;Chunjing Li;B. Huang
中科院分区：
文献类型：
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作者：
Shaojun Liu;Qunying Huang;Chunjing Li;B. Huang
研究了非金属夹杂物的尺寸和分布对中国低活化马氏体钢（CLAM）力学性能的影响。拉伸和夏比V型缺口冲击试验表明，电渣重熔提高了合金的拉伸性能，降低了合金的韧脆转变温度。采用光学显微镜和扫描电镜对CLAM中的夹杂物进行了检测，结果表明，重熔后夹杂物尺寸减小，数量减少，分布更加均匀。研究认为，重熔后CLAM钢力学性能提高的主要原因可能是氧化铝夹杂物的细化和分布均匀性较好。
The effect of the size and distribution of non-metal inclusions on mechanical properties of the China low activation martensitic steel (CLAM) was investigated. The tensile and Charpy V-notch impact tests showed that electroslag remelting improved the tensile properties and reduced the ductile brittle transition temperature (DBTT). Inclusion detection of CLAM by optical microscopy and scanning electron microscope showed that both the dimensions and quantities of the alumina inclusions decreased and their distributions became more uniform after remelting. The better refinement and distribution uniformity of alumina inclusions were considered as the main possible reasons for the improvement of the mechanical properties of CLAM steel after remelting.