TY - JOUR
T1 - 粉末粒径和烧结温度对K418高温合金多孔材料显微结构及性能影响
AU - Zhang, Mai
AU - Liang, Jiamiao
AU - Liu, Mohan
AU - Li, Dong
AU - Baixiao, Chengti
AU - Xu, Kai
AU - Wang, Jun
N1 - Publisher Copyright:
© 2023 Beijing Research Institute of Powder Metallurgy. All rights reserved.
PY - 2023
Y1 - 2023
N2 - The porous superalloy materials were prepared by loose packing sintering using the atomized K418 nickel-based superalloy spherical powders as the raw materials. The microstructure, permeability, capillarity, and compressive strength of the sintered porous material samples were analyzed, and the effects of sintering temperature and original powder particle size on the microstructure and properties of the porous K418 superalloys were investigated. The results show that, the average pore size and porosity decrease with the increase of sintering temperature. At the same sintering temperature, the average pore size and porosity of the sintered samples increase with the increase of the original powder particle size. At the sintering temperature of 1230 ℃ and the powder particle size of 53~150 μm, the comprehensive performance of the porous material samples is the best, the permeability is 13.69×10−15 m2, the capillary pressure is 22.1 kPa, and compressive strength is 86 MPa.
AB - The porous superalloy materials were prepared by loose packing sintering using the atomized K418 nickel-based superalloy spherical powders as the raw materials. The microstructure, permeability, capillarity, and compressive strength of the sintered porous material samples were analyzed, and the effects of sintering temperature and original powder particle size on the microstructure and properties of the porous K418 superalloys were investigated. The results show that, the average pore size and porosity decrease with the increase of sintering temperature. At the same sintering temperature, the average pore size and porosity of the sintered samples increase with the increase of the original powder particle size. At the sintering temperature of 1230 ℃ and the powder particle size of 53~150 μm, the comprehensive performance of the porous material samples is the best, the permeability is 13.69×10−15 m2, the capillary pressure is 22.1 kPa, and compressive strength is 86 MPa.
KW - capillary pressure
KW - compressive strength
KW - permeability
KW - porous wick
KW - powder particle size
KW - sintering temperatur
UR - http://www.scopus.com/inward/record.url?scp=85178296520&partnerID=8YFLogxK
U2 - 10.19591/j.cnki.cn11-1974/tf.2022040002
DO - 10.19591/j.cnki.cn11-1974/tf.2022040002
M3 - 文章
AN - SCOPUS:85178296520
SN - 1001-3784
VL - 41
SP - 442
EP - 448
JO - Fenmo Yejin Jishu/Powder Metallurgy Technology
JF - Fenmo Yejin Jishu/Powder Metallurgy Technology
IS - 5
ER -