Abstract

The fine structure of low-carbon low-alloy pipe steel after controlled thermomechanical processing and subsequent austenitization at 980°C is studied in this work using scanning and transmission electron microscopy methods. The evolution of austenite decomposition products with an increase in the cooling rate from the austenitic region from 35 to 500 deg/s is described. The martensitic-austenitic component is revealed and identified in the structure of steel based on quasi-polygonal bainite.

中文翻译：

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低碳低合金管钢组织中马氏体-奥氏体成分的观察

摘要

在这项工作中，使用扫描和透射电子显微镜方法研究了低碳低合金管钢的精细组织，该组织经过受控的热机械加工以及随后在980°C的奥氏体化。描述了随着冷却速率从奥氏体区域从35度/秒增加到500度/秒，奥氏体分解产物的演变。在基于准多边形贝氏体的钢结构中发现并识别出马氏体-奥氏体成分。