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Evaluation and modification of inclusion characteristics in HK40 heatresistant cast steel 被引量：1

Evaluation and modification of inclusion characteristics in HK40 heatresistant cast steel
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摘要 Specifications of inclusions such as the type, morphology, number, composition, size, and place of inclusions in HK40 heat-resistant casting steel were studied by optical microscopy and scanning electron microscopy equipped with an energy-dispersive spectroscopy system. The effects of calcium silicide （CaSi） addition on these characteristics were evaluated at two pouring temperatures of 1420℃ and 1470℃. It was found that most of the appeared inclusions were in the type of chromium oxide. CaSi addition had a significant effect on the morphological modification, size and distribution of inclusions as well as changing the composition to oxide-sulfide compounds. Specifications of inclusions such as the type, morphology, number, composition, size, and place of inclusions in HK40 heat-resistant casting steel were studied by optical microscopy and scanning electron microscopy equipped with an energy-dispersive spectroscopy system. The effects of calcium silicide （CaSi） addition on these characteristics were evaluated at two pouring temperatures of 1420℃ and 1470℃. It was found that most of the appeared inclusions were in the type of chromium oxide. CaSi addition had a significant effect on the morphological modification, size and distribution of inclusions as well as changing the composition to oxide-sulfide compounds.
作者 Ali Navaei Reza Eslami-Farsani Majid Abbasi
机构地区 Faculty of Mechanical Engineering Department of Materials Engineering
出处 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2013年第4期354-359,共6页 矿物冶金与材料学报（英文版）
关键词 heat-resistant steel INCLUSIONS calcium silicide MODIFICATION heat-resistant steel inclusions calcium silicide modification
分类号 TG142.73 [金属学及工艺—金属材料]
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International Journal of Minerals,Metallurgy and Materials
2013年 第4期

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