The Nature of Anomalous Particles (Granules) in Rapidly Quenched PREP Powders-II. A Multiscale Study of PREP Powders and PM HIP Compacts of Ni-Based Superalloys and Stainless Steels

Shulga A. V.

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The Nature of Anomalous Particles (Granules) in Rapidly Quenched PREP Powders-II. A Multiscale Study of PREP Powders and PM HIP Compacts of Ni-Based Superalloys and Stainless Steels

机译：快速淬火制备粉末II中异常颗粒（颗粒）的性质。 Ni基超合金和不锈钢的预备粉末和PM髋关节的多尺度研究

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The formation of anomalous particles (granules) with a significantly different content of microalloying interstitial elements of carbon and boron characterizes the heterogeneity of the composition of rapidly quenched particles of high temperature Ni-based superalloys and stainless steels powders manufactured by the plasma rotating electrode process (PREP) technique. A detailed multiscale experimental study of the microstructure of PREP powders and PM HIP compacts of Ni-based superalloys and stainless steels is carried out in order to reveal the features of the microstructure of anomalous granules in the as-received state and consolidated state. Direct nuclear methods of activation autoradiography on carbon, track autoradiography on boron, metallography, SEM, EDX, and OIM are used. A significant effect of carbon and boron on the dendritic segregation of carbide-forming and boride-forming alloying elements in anomalous granules is revealed. The features of the behavior of carbon and boron, which determine the formation of the microstructure of anomalous granules and their retention in PM HIP compacts, are established.

机译：碳和硼微合金化填隙元素含量显著不同的异常颗粒（颗粒）的形成，表征了通过等离子旋转电极工艺（PREP）技术制造的高温镍基高温合金和不锈钢粉末的快速淬火颗粒成分的不均匀性。对镍基高温合金和不锈钢的预处理粉末和粉末热等静压体的微观结构进行了详细的多尺度实验研究，以揭示接收状态和固结状态下异常颗粒的微观结构特征。使用了碳的直接核活化放射自显影法、硼的径迹放射自显影法、金相、SEM、EDX和OIM。碳和硼对异常颗粒中形成碳化物和形成硼化物的合金元素的树枝状偏析有显著影响。确定了碳和硼的行为特征，这些特征决定了异常颗粒微观结构的形成及其在PM HIP压坯中的保留。

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来源
《Physics of atomic nuclei》 |2020年第9期|共10页
作者
Shulga A. V.;
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作者单位

Natl Res Nucl Univ MEPhI Moscow Engn Phys Inst Moscow 115409 Russia;

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正文语种 eng
中图分类原子物理学;原子核物理学、高能物理学;
关键词
Ni-based superalloys; stainless steels; rapidly quenched powders; PREP technique; PM HIP methods; autoradiography; carbon; boron; microstructure;

机译：基于NI的高温合金;不锈钢;快速淬火粉末;准备技术;PM髋臼方法;放射缩影;碳;硼;微观结构;

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1. The Nature of Anomalous Particles (Granules) in Rapidly Quenched PREP Powders: I. A Multiscale Study of the Heating Zone of the Rotating Electrode Used to Obtain the Rapidly Quenched PREP Ni-Based Superalloy Powder [J] . Physics of atomic nuclei . 2019,第9期

机译：快速淬火的制备粉末中异常颗粒（颗粒）的性质：I。旋转电极的加热区的多尺度研究，用于获得快速淬火的预制Ni基超合金粉末
2. Surface characteristics of rapidly solidified nickel-based superalloy powders prepared by PREP [J] . CHEN Huanming, HU Benfu, LI Huiying RARE METALS . 2003,第4期

机译：PREP制备的快速凝固镍基高温合金粉末的表面特性
3. Surface characteristics of rapidly solidified nickel-based superalloy powders prepared by PREP [J] . CHEN Huanming, HU Benfu, LI Huiying RARE METALS . 2003,第4期

机译：PREP制备的快速固化镍基高温合金粉末的表面特性
4. Anomalous particles (granules) in PREP-powders. A multiscale study of the PREP- powders and PM HIP compacts of the Ni-based superalloys and stainless steels [C] . A.V. Shulga . -1

机译：制备粉末中的异常颗粒（颗粒）。对Ni基超合金和不锈钢的预备粉末和PM髋关节块的多尺度研究
5. Microstructure and Strength of HIP Sintered Ni Base Superalloy Using PREP Powder [O] . Koji Kakehi, Rei Yokomori, Tomohiro Nishimaki 2016

机译：使用预备粉末髋烧烧结Ni基超合金的组织和强度

The Nature of Anomalous Particles (Granules) in Rapidly Quenched PREP Powders-II. A Multiscale Study of PREP Powders and PM HIP Compacts of Ni-Based Superalloys and Stainless Steels

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