The Study of a Drop of Plasticity Behavior of the As-Cast Low Carbon Steels in γ → α Transformation Region

ผู้แต่ง

  • Antonín Ševčík Institute of Material Research (SAS)
  • Jarmila Ševčíková Dept. of Materials Science, Faculty of Metallurgy, Technical University

คำสำคัญ:

low carbon steels, as-cast state, hot ductility, γ → α transformation, austenite grain size, effect of trace elements, intensity of R.A. drop

บทคัดย่อ

Plasticity degradation in the region of γ → α transformation was studied on experimental material comprising 24 commercially produced low carbon steels.  Specimens were high frequency heated under protected argon atmosphere and the experiments were realized by tensile tests at constant testing conditions. The main aim of the work was to quantify the plasticity drop evaluation by statistical analyses of the reduction of area values. A considerable influence of the austenite grain size and/or boron on the intensity of plasticity drop was demonstrated. Temperature of the plasticity degradation, which was up to 323°C higher than the theoretical γ → α temperature, increased without the embrittlement effect of the proeutectoid ferrite on the austenite grain boundaries but as well as the increase of the content of trace elements, particularly of arsenic. Attention was also given to study the morphology of fractures formed in the temperature region of plasticity degradation.

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เอกสารอ้างอิง

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ดาวน์โหลด

เผยแพร่แล้ว

2022-08-19

วิธีการอ้างอิง

[1]
A. Ševčík และ J. Ševčíková, “The Study of a Drop of Plasticity Behavior of the As-Cast Low Carbon Steels in γ → α Transformation Region”, J Met Mater Miner, ปี 15, ฉบับที่ 2, น. 25–29, ส.ค. 2022.

ฉบับ

ปีที่ 15 ฉบับที่ 2 (2005)

บท

Original Research Articles

การอนุญาต

ลิขสิทธิ์ (c) 2005 The Journal of Metals, Materials and Minerals (JMMM)

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