通过气体雾化技术获得的铬锰镍钢粉的表征

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-09-09 DOI:10.1002/srin.202400267

Anastasiia Sherstneva, Caroline Quitzke, Matheus R. Bellé, Marco Wendler, Olena Volkova

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引用次数: 0

摘要

要在增材制造过程中获得成功的产品，作为原材料的粉末必须具有高质量。这项工作的目的是研究通过惰性气体雾化获得的镍含量为 3、6 和 9 wt% 的铬锰镍钢粉末，并确定粉末尺寸和形态、凝固结构以及变化之间的关系：3、6 和 9 wt% 的铬锰镍钢粉末，并确定粉末尺寸与形态、凝固结构以及化学成分和热物理性能变化之间的关系。使用激光散射分析仪测量了粒度分布：镍含量为 3、6 和 9 wt% 的粉末的 d50 值分别为 82.02、69.32 和 75.54 μm。采用最大气泡压力法测定了表面张力（ST）：在温度为 1500 °C 的条件下，3、6 和 9 wt% 的钢材的 ST 值分别为 1.01、1.07 和 1.15 mN m-1。研究发现，粒度的变化会影响化学成分、铁磁相含量和二级树枝状臂间距。S、O、N 和 Mn 等元素含量的变化取决于颗粒的直径。研究了 S、O 和 N 含量的变化对 ST 等热物理性质的影响。

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Characterization of CrMnNi Steel Powders Obtained via Gas Atomization

To obtain a successful product during additive manufacturing, the powder as a raw material must have the high quality. The purpose of this work is to investigate CrMnNi steel powders obtained by inert gas atomization with nickel content: 3, 6, and 9 wt% and to identify dependencies between the powder size and morphology, solidification structure, and change in chemical composition and thermophysical properties. Particle size distribution is measured by a laser scattering analyzer: d50 value are 82.02, 69.32, and 75.54 μm for powders with 3, 6, and 9 wt%, respectively. Surface tension (ST) measurements are made by maximum bubble pressure method: for steels with 3, 6, and 9 wt% at temperature 1500 °C, ST is 1.01, 1.07, and 1.15 mN m−1, respectively. It is found that the change in particle size affects the chemical composition, the content of the ferromagnetic phase and secondary dendritic arm‐spacing. Changes in the content of elements such as S, O, N, and Mn are determined, depending on the diameter of the particles. The influence of changes in content of S, O, and N on the thermophysical properties such as ST is investigated.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.