Residual stress-assisted static globularization in electron beam powder bed fusion Ti-6Al-4V from powder recovery and hot isostatic pressing

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

Materials Letters Pub Date : 2025-06-10 DOI:10.1016/j.matlet.2025.138816

Nicholas Derimow , Thomas A. Berfield , Keenan Hanson , Jake T. Benzing , Nik Hrabe

引用次数: 0

Abstract

The residual stresses from controlled powder recovery blasting on electron beam powder bed fusion (PBF-EB) Ti-6Al-4V were investigated via hole drilling, profilometry, and microscopy. After hot isostatic pressing, the near-surface lamellar

α + β

microstructure underwent a static

α

globularization resulting from residual stresses imparted by plastic deformation during powder recovery. Surface residual stresses were measured to be consistent with shot peening. The results have implications for systematic control of PBF-EB Ti-6Al-4V through modification of standard practices.

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粉末回收和热等静压在电子束粉末床熔合Ti-6Al-4V过程中的残余应力辅助静态球化

通过钻孔、轮廓术和显微技术研究了电子束粉末床熔合（PBF-EB） Ti-6Al-4V控制粉末回收爆破的残余应力。热等静压后，近表面层状α+β微观组织发生静态α球化，这是由于粉末恢复过程中塑性变形所带来的残余应力所致。表面残余应力测量与喷丸强化一致。该结果对通过修改标准实践系统控制PBF-EB Ti-6Al-4V具有启示意义。

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