Microstructure and Properties of Fe-12Cr-2.5W-xSi-0.4Ti-0.3Y2O3 Alloys

被引:0
作者
Kui Sun
Zhenhua Yao
Chaofeng Wang
Xueming Du
机构
[1] Wuhan University of Technology,School of Materials Science and Engineer
来源
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2023年 / 38卷
关键词
sintering temperature; Si content; nano-precipitates; tensile strength;
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中图分类号
学科分类号
摘要
Fe-12Cr-2.5W-xSi-0.4Ti-0.3Y2O3 alloys were fabricated by mechanical alloying and vacuum sintering. The effect of sintering temperature and Si content on the microstructure and properties of the alloy was investigated systematically. The experimental results show that the relative density and tensile strength of the alloy were increased with the elevating of sintering temperature and Si content within a certain range. The alloy with 1wt% Si sintered at 1 350 °C exhibited superior properties, and the relative density and tensile strength were 96.8% and 692.7 MPa, respectively. HAADF and EDAX analysis of nano-precipitation in the matrix indicated that Si could combine with Y, Ti, and O in the sintering process, which was uniformly distributed with the size of 10 nm. Portion of Y2O3 had not completely dissolved in the milling process, which was retained in the matrix of the alloy.
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页码:893 / 896
页数:3
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  • [11] Ozieblo A(2011)Structure and Elastic Property of Nanosized Complex Oxide Particles in Ferritic/Martensitic Alloy: An Electron Energy-Loss Spectroscopy Study Journal of Nuclear Materials 416 331-334
  • [12] Perkowski K(1990)Mechanisms of Sintering in High Speed Steels with Phosphorus Alloying Additions Powder Metallurgy 33 126-132
  • [13] Ohtsuka S(1997)Microstructural Development and Sintering Kinetics in Ceramic Reinforced High Speed Steel Metal Matrix Composites Powder Metallurgy 40 143-151
  • [14] Ukai S(1971)The Mechanical Properties of α-Phase Low-Carbon Fe-Mn alloys Powder Metallurgy 2 2 915-2 923
  • [15] Fujiwara M(1998)Silicide Phase Formation and Its Influence on Liquid Phase Sintering in 316L Stainless Steel with Elemental Silicon Additions Powder Metallurgy 2 93-101
  • [16] Alinger MJ(2016)Effect of Particle Size on the Thermal and Mechanical Properties of Aluminum Composites Reinforced with SiC and Diamond Materials and Design 90 845-851
  • [17] Odette GR(2017)Microstructure and Mechanical Properties of AZ31 Alloys Processed by Residual Heat Rolling Journal of Wuhan University of Technology-Materials Science Edition 36 588-594
  • [18] Hoelzer DT(2016)Nanostructure Evolution in ODS Steels under Ion Irradiation Nuclear Material Energy 9 66-74
  • [19] Ukai S(undefined)undefined undefined undefined undefined-undefined
  • [20] Fujisawa M(undefined)undefined undefined undefined undefined-undefined