Particles control in selective laser melting in-situ oxide dispersion strengthened method

1st International Conference on New Material and Chemical Industry

材料科学;化学工业

Zhou, Xin^1 ; An, Zhibin^1 ; Shen, Zhijian^2 ; Liu, Wei^2 ; Yao, Chenguang^3

Science and Technology on Plasma Dynamics Laboratory, Xi'an

710038, China^1

School of Materials Science and Engineering, Tsinghua University, Beijing

100084, China^2

China Women's University, Beijing

100101, China^3

关键词: Amorphous oxides;    In-situ formations;    Laser chambers;    Oxide dispersion strengthened;    Oxide dispersion strengthened steel;    Reactive elements;    Reactive solutes;    Selective laser melting;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/167/1/012048/pdf
DOI  :  10.1088/1757-899X/167/1/012048

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Stainless steel selective laser melting (SLM) can be considered as a new possible approach for in-situ formation of oxide dispersion strengthened (ODS) steels because of the dispersion of amorphous oxide nano-particles due to the trace amounts of laser chamber oxygen and in-situ internal oxidation of reactive elements. In this paper it is demonstrated that the particle sizes and distributions can be adjusted by choosing different chamber oxygen level through controlling the quantity of initial reactive cores and the available reactive solutes of each core.