Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Date of Birth:1991-04-13
Date of Employment:2021-10-11
School/Department:合肥工业大学
Education Level:With Certificate of Graduation for Doctorate Study
Gender:Male
Degree:Doctoral degree
Status:Employed
Alma Mater:中国科学技术大学
Discipline:Other specialties in Material Science and Engineering
Material Process Engineering
Material Science
Material Physics and Chemistry
Paper Publications
Bing Ma, Yoshimistu Hishinuma, Hiroyuki Noto, Yifan Zhang, Jing Wang*, Laima Luo*, Takeo Muroga, Effect of different Y components on optimization of dispersive Y2O3 particles in ODS-Cu, Journal of Nuclear Materials, 2022, 571: 154016.
DOI number:10.1016/j.jnucmat.2022.154016
Journal:Journal of Nuclear Materials
Key Words:ODS-Cu, Y2O3 sources, Cu6Y compound, Mechanical alloying
Abstract:In order to reflect the superiority of using Cu 6 Y as the Y 2 O 3 source, three different Y sources addition, direct Y 2 O 3 by conventional mechanical alloying process, pure metal Y and Cu 6 Y compound by in-situ fabrication method, were compared in the ODS-Cu with 1.5 wt.% Y 2 O 3 . It was found that compared to Y 2 O 3 or pure metal Y, the brittle Cu 6 Y played the roles of both suitable Y precursor to enhance Y dis- solution and process control agent (PCA) to suppress the growth of mechanical alloying (MA) powders. The alloyed layer was thickened with the MA time, and the further MA gradually becomes difficult. It is inefficient to fully alloy the MA powders only by prolonging milling time. The samples by in-situ fab- rication method (Y and Cu 6 Y sourced) had more contaminations with Fe, because of the oxidation of milling mediums by Cu 2 O, which was used to oxide the Y precursors to form the Y 2 O 3 . The contami- nations contributed to the hard prior particles boundaries where fracture took place during the tensile tests, resulting in the poor tensile performance for the samples by in-situ fabrication method. Consider- ing that the Cu 6 Y sourced sample by in-situ fabrication method formed fine and high dense dispersive Y 2 O 3 particles with the size of 19 ±7 nm and a high number density of 1.8 ×10 21 /m 3 , it has a larger potential for improvement once the means to reduce Fe impurities and holes are developed.
First Author:Bing Ma
Indexed by:Journal paper
Correspondence Author:Laima Luo,Jing Wang
Document Code:154016
Discipline:Engineering
Issue:571
Translation or Not:no
Date of Publication:2022-09-05
Included Journals:SCI