通过准原位 EBSD 研究激光粉末床熔融制造奥氏体不锈钢 316L 的应变诱导晶粒生长行为

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters Pub Date : 2024-09-02 DOI:10.1016/j.matlet.2024.137327

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引用次数: 0

摘要

这项工作研究了激光粉末床熔融 316L 奥氏体不锈钢中的应变诱导晶粒生长行为。通过准原位电子反向散射衍射研究了样品的内在特征，如晶体学取向、位错密度、低角度晶界和孪晶。此外，在 800 ℃ 退火的样品中，塑性变形过程中的晶粒生长归因于预先存在的孪晶和应变诱导的晶界迁移的共同影响。

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Strain induced grain growth behavior in laser powder bed fusion fabricated austenitic stainless steel 316L investigated by quasi–in–situ EBSD

A strain induced grain growth behaviour in laser powder bed fusion 316L austenitic stainless steel was investigated in this work. The intrinsic characteristics of the samples, such as crystallographic orientations, dislocation density, low angle grain boundaries and twins, were investigated via quasi–in–situ electron backscatter diffraction. Additionally, grain growth during plastic deformation in samples annealed at 800 °C was attributed to the combined influence of pre–existing twins and strain–induced grain boundary migration.

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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