Surface characterization of plasma rotating electrode atomized 30CrMnSiNi2A steel powder
Surface characterization of plasma rotating electrode atomized 30CrMnSiNi2A steel powder
复制标题
等离子旋转电极雾化30CrMnSiNi2A钢粉的表面表征
DOI：
10.1016/j.apsusc.2020.147004
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发表时间：
2020-10
影响因子：
6.7
通讯作者：
Zhongliu Wen
中科院分区：
文献类型：
--
作者：
Wensheng Liu;Youteng Duan;Yunzhu Ma;Qingshan Cai;Jie Li;Zhongliu Wen
雾化钢粉末表面氧化物的表征是必不可少的，以便确定烧结条件，在固结过程中提供粉末颗粒之间的强金属结合。本研究首次系统地研究了等离子旋转电极雾化钢粉的表面特性。采用等离子旋转电极工艺（PREP）制备的30CrMnSiNi2A超高强度低合金钢粉末作为模型材料。采用X射线光电子能谱、扫描电子显微镜、透射电子显微镜和能量色散X射线能谱等方法对PREP粉末表面氧化物的形貌、尺寸、组成和分布进行了系统的研究。结果表明，PREP粉末表面覆盖着分散的氧化物颗粒和均匀的铁氧化物层（约4.6 nm）之间的氧化物颗粒。MnO和FeO分别是氧化物颗粒和铁氧化物层的主要形态，少量的Fe2O3存在于铁氧化物层的最外层。氧化物颗粒和铁氧化物层的局部区域存在少量的Cr2O3和SiO2。最后确定了PREP钢粉表面氧化物分布模型。
Characterization of surface oxides on atomized steel powder is essential in order to determine the sintering conditions for providing strong metal bonding between the powder particles during consolidation. In the present study, it was the first time to systematically investigate the surface characterization of plasma rotating electrode atomized steel powder. China ultra-high strength low alloy steel 30CrMnSiNi2A powder produced by plasma rotating electrode process (PREP) was chosen as the model material. X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray spectroscopy were performed to methodically investigate the morphology, size, composition and distribution of surface oxides of the PREP powder. The results indicated that the PREP powder surface was covered by dispersed oxide particulates and homogeneous Fe-oxide layer (about 4.6 nm) between the oxide particulates. MnO and FeO were the main forms of the oxide particulates and the Fe-oxide layer, respectively, and a little Fe2O3existed on the outermost of the Fe-oxide layer. Besides, a small quantity of Cr2O3and SiO2existed in local areas of the oxide particulates and the Fe-oxide layer. At last the model of surface oxides distribution of the PREP steel powder was determined.
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DOI：
10.4028/www.scientific.net/kem.29-31.9
发表时间：
1991-01
期刊：
Key Engineering Materials
影响因子：
--
作者：
L. Nyborg;I. Olefjord
通讯作者：
L. Nyborg;I. Olefjord
DOI：
10.1016/j.msea.2018.11.024
发表时间：
2019-01
期刊：
Materials Science and Engineering: A
影响因子：
--
作者：
Lei Cao;Weizhen Zeng;Yuehuang Xie;Jiamiao Liang;Deliang Zhang;Deliang Zhang
通讯作者：
Lei Cao;Weizhen Zeng;Yuehuang Xie;Jiamiao Liang;Deliang Zhang;Deliang Zhang
影响因子：
1.4
作者：
C. Broeckmann
通讯作者：
C. Broeckmann
影响因子：
6.7
作者：
Yamashita, Toru;Hayes, Peter
通讯作者：
Hayes, Peter
影响因子：
4
作者：
Chen, Yue;Zhang, Jiayi;Yao, Caogen
通讯作者：
Yao, Caogen