TEM Observation on Nano-precipitation of Plain Low Carbon Steel by CSP

机译：CSP对普通低碳钢进行纳米沉淀的TEM观察

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Plain low carbon steel produced by compact strip production (CSP) process was analyzed using TEM, EELS and XEDS. Nano-sized oxides and sulfides were observed in the steel. The nano-oxides are mainly ferrospinel of < 20nm in size, and the nano-sulfides are MnS and FeS particles with size of 20-100 nm. They distributed both in grains and at grain boundaries. These nano precipitates could form in cast slab before heavy deformation by rolling process. It is proposed that besides the grain refinement, the nano-pricipitation plays an important role in yield strength enhancement. This mechanism may provide a new approach to strengthen plain low carbon steels.

机译：使用TEM，EELS和XEDS分析了通过紧凑带材生产（CSP）工艺生产的普通低碳钢。在钢中观察到纳米级的氧化物和硫化物。纳米氧化物主要是尺寸小于20nm的亚铁松，纳米硫化物是尺寸为20-100 nm的MnS和FeS颗粒。它们既分布在晶粒中又分布在晶界处。这些纳米沉淀物可能在铸坯中形成，然后通过轧制过程发生严重变形。有人提出，除了晶粒细化之外，纳米沉淀对提高屈服强度也起着重要作用。这种机制可能为加强普通低碳钢提供一种新方法。

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来源
《Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.1; 20041102-05; Beijing(CN)》|2004年|P.101-104|共4页
会议地点 Beijing(CN)
作者
L.N. Zhang; X. Zhang; Y. Ma; D.L. Liu;
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作者单位

Electron Microscopy Laboratory, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
CSP; Nano-precipitation; TEM;

机译：CSP;纳米沉淀; TEM;

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2. TEM Observations of Ultra Low Carbon Steel Deformed by Repeated Shear Deformation Process and Heat Treatment [J] . Youichirou Kimura 材料とプロセス: 日本鉄鋼協会講演論文集 . 2001,第3期

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3. TEM Observations of Ultra Low Carbon Steel Deformed by Repeated Shear Deformation Process and Heat Treatment [J] . Youichirou Kimura 材料とプロセス: 日本鉄鋼協会講演論文集 . 2001,第3期

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4. TEM Observation on Nano-precipitation of Plain Low Carbon Steel by CSP [C] . L.N. Zhang, X. Zhang, Y. Ma Pacific Rim International Conference on Advanced Materials and Processing . 2005

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5. HYDROGEN EFFECTS IN THE FRACTURE OF SPHEROIDIZED PLAIN CARBON STEELS AND A HIGH STRENGTH 4140 STEEL. [D] . CIALONE, HENRY JOSEPH. 1981

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6. Direct observation of dislocation plasticity in high-Mn lightweight steel by in-situ TEM [O] . Sung-Dae Kim, Jun Young Park, Seong-Jun Park, -1

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7. Microscopic Observation of the Brittle-Striation Formation Mechanism in Low Carbon Steel Fatigued in Hydrogen Gas (TEM and EBSD Observation Corresponding to Fractography) [O] . Hide-aki NISHIKAWA, Yasuji ODA, Yoshimasa TAKAHASHI, 2011

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8. Effect of Total Carbon and Manganese on the Mechanical Properties and Structure of Welded Joints in Plain Low-Carbon Steel [R] . Spraragen, W., Claussen, G. E. 1937

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TEM Observation on Nano-precipitation of Plain Low Carbon Steel by CSP

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