Effective strategies for improving quenched microstructure and mechanical properties of hot-rolled seamless steel pipes

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2024-11-10 DOI:10.1016/j.matlet.2024.137707

Chao Wang , Xin Wang , Bo Fu , Yanfa Han , Guo Yuan

引用次数: 0

Abstract

The containing Ti-Mg-Ca-O composite particles were innovatively used to achieve microstructure refinement and properties improvement of hot-rolled seamless steel pipes, and compared with conventional steel (C# steel). The results show that the C# steel mainly consisted of parallel lath martensite after on-line quenching. Under the same rolling and heat treatment conditions, dominant Ti-Mg-Ca-O composite particles in modified steel (M# steel) were effective nucleation sites of acicular ferrite, dividing the prior austenite grains and refining microstructures. The strength values of the both steels were at the same level, however, the impact energy of M# steel was significantly higher than C# steel, increasing by 28%. This study provides an effective method for further microstructure refinement of hot-rolled seamless steel tubes.

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改善热轧无缝钢管淬火微观结构和机械性能的有效策略

创新性地使用含 Ti-Mg-Ca-O 复合颗粒实现了热轧无缝钢管的微观结构细化和性能改善，并与传统钢材（C# 钢）进行了比较。结果表明，在线淬火后，C# 钢主要由平行板条马氏体组成。在相同的轧制和热处理条件下，改性钢（M#钢）中占主导地位的 Ti-Mg-Ca-O 复合颗粒是针状铁素体的有效成核点，可分割先前的奥氏体晶粒并细化微观结构。两种钢的强度值相同，但 M# 钢的冲击能明显高于 C# 钢，提高了 28%。这项研究为进一步细化热轧无缝钢管的微观结构提供了有效方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive