Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-20T17:23:40.007Z Has data issue: false hasContentIssue false
  • English
  • Français

Microstructural evolution of MgAl2O4 oxide-dispersion-strengthened alloy by mechanical milling and hot isostatic pressing

Published online by Cambridge University Press:  14 July 2014

Lei Dai ,
Yongchang Liu ,
Ping Feng  and
Jun Zhao
Lei Dai*
Affiliation:
College of Materials and Chemical Engineering, Three Gorges University, Yichang 443002, People’s Republic of China
Yongchang Liu*
Affiliation:
School of Material Science and Engineering, Tianjin Key Laboratory of Advanced Jointing Technology, Tianjin University, Tianjin 300072, People’s Republic of China
Ping Feng
Affiliation:
College of Materials and Chemical Engineering, Three Gorges University, Yichang 443002, People’s Republic of China
Jun Zhao
Affiliation:
College of Materials and Chemical Engineering, Three Gorges University, Yichang 443002, People’s Republic of China
*
a) Address all correspondence to these authors. e-mail: [email protected]
b) e-mail: [email protected]
Get access

Abstract

Oxide-dispersion-strengthened (ODS) ferritic alloys are fascinating materials for future high temperature energy production technologies. MgAl2O4 ODS alloy incorporating nanoscale oxide particles were produced by mechanical milling (MM) followed by hot isostatic pressing (HIP). The MgAl2O4 nanoscale oxide particles were formed during the HIP process by the addition of MgO and Al2O3 to the Fe–Cr matrix. Microstructural evolution of ODS alloys was structurally characterized at each step of the elaboration processes by means of scanning electron microscope (SEM), transmission electron microscope (TEM), and x-ray diffraction (XRD). The observations of structure of the mixed powders in ODS alloys after MM indicated that the initial powders, coupled with the original MgO and Al2O3 powders, got fractured by severe plastic deformation and ultrafine bcc grains (∼17 nm) of the matrix and amorphous phase composed of Mg, Al, and O were formed during MM. The main driving force for the formation of amorphous phase comes from the increase of volume fraction of bcc Fe grain boundary and the increase of interfacial energy due to the decrease in the size of MgO and Al2O3 powders. The MgAl2O4 nanoscale oxide particles formed at 1173 K which was far below the traditional sintering temperature of the raw material. And the structures of MgAl2O4 nanoscale oxide particles were observed by TEM.

Keywords

ferritic alloyoxide-dispersion-strengthenedmechanical millinghot isostatic pressingnanoscale oxide particlesmicrostructureamorphous
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 13 , 14 July 2014 , pp. 1440 - 1447
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Noh, S., Kasada, R., and Kimura, A.: Solid-state diffusion bonding of high-Cr ODS ferritic steel. Acta Mater. 59, 3196 (2011).Google Scholar
Hadraba, H., Fournier, B., Stratil, L., Malaplate, J., Rouffié, A-L., Wident, P., Ziolek, L., and Béchade, J-L.: Influence of microstructure on impact properties on 9-18Cr ODS steels for fusion/fission applications. J. Nucl. Mater. 411, 112 (2011).Google Scholar
Klimenkov, M.: Quantitative measurement of argon inside of nano-sized bubbles in ODS steels. J. Nucl. Mater. 411, 160 (2011).Google Scholar
Ribis, J. and de Carlan, Y.: Interfacial strained structure and orientation relationships of the nanosized oxide particles deduced from elasticity-driven morphology in oxide dispersion strengthened materials. Acta Mater. 60, 238 (2012).Google Scholar
Tanelke, M., Abe, F., and Sawada, K.: Creep-strengthening of steel at high temperatures using nano-sized carbonitride dispersions. Nature 424, 294 (2003).Google Scholar
Kimura, K.: Assessment of long-term creep strength and review of allowable stress of high Cr ferritic creep resistant steels. ASME Pressure Vessels and Piping Division Conference, 2005; 1–8.Google Scholar
Hin, C. and Wirth, B.D.: Formation of Y2O3 nanoclusters in nano-structured ferritic alloys: Modeling of precipitation kinetics and yield strength. J. Nucl. Mater. 402, 30 (2010).Google Scholar
Lescoat, M-L., Monnet, I., Ribis, J., Dubuisson, P., de Carlan, Y., Costantini, J-M., and Malaplate, J.: Amorphization of oxides in ODS materials under low and high energy ion irradiations. J. Nucl. Mater. 417, 266 (2010).Google Scholar
Lindau, R., Möslang, A., Schirra, M., Schlossmacher, P., and Klimenkov, M.: Mechanical and microstructural properties of a hipped RAFM ODS-steel. J. Nucl. Mater. 307–311, 769 (2002).CrossRefGoogle Scholar
Hsiung, L.L., Fluss, M.J., Tumey, S.J., Choi, B.W., Serruys, Y., Willaime, F., and Kimura, A.: Formation mechanism and the role of nanoparticles in Fe-Cr ODS steels developed for radiation tolerance. Phys. Rev. B 82, 184103 (2010).CrossRefGoogle Scholar
Ukai, S., Mizuta, S., and Fujiwara, M.: Perspective of ODS alloys application in nuclear environments. J. Nucl. Mater. 307–311, 749 (2002).Google Scholar
Kishimoto, H., Kasada, R., Hashitomi, O., and Kimura, A.: Stability of Y-Ti complex oxides in Fe-16Cr-0.1Ti ODS ferritic steel before and after heavy-ion irradiation. J. Nucl. Mater. 386–388, 533 (2009).Google Scholar
Monnet, I., Dubuisson, P., Serruys, Y., Ruault, M.O., Kaïtasov, O., and Jouffrey, B.: Microstructural investigation of the stability under irradiation of oxide dispersion strengthened ferritic steels. J. Nucl. Mater. 335, 311 (2004).Google Scholar
Cayron, C., Rath, E., Chu, I., and Launois, S.: Microstructural evolution of Y2O3 and MgAl2O4 ODS EUROFER steels during their elaboration by mechanical milling and hot isostatic pressing. J. Nucl. Mater. 335, 83 (2004).Google Scholar
Danilchenko, S.N., Kukharenko, O.G., Moseke, C., Protsenko, I.Y., Sukhodubi, L.F., and Sulkio-Cleff, B.: Determination of the bone mineral crystallite size and lattice strain from diffraction line broadening. Cryst. Res. Technol. 37, 1234 (2002).Google Scholar
Jiang, H.G., Rühle, M., and Lavernia, E.J.: On the applicability of the x-ray diffraction line profile analysis in extracting grain size and microstrain in nanocrystalline materials. J. Mater. Res. 14, 549–559 (1999).Google Scholar
Dai, L., Liu, Y.C., and Dong, Z.Z.: Size and structure evolution of yttria in ODS ferritic alloy powder during mechanical milling and subsequent annealing. Powder Technol. 217, 281 (2012).Google Scholar
Dai, L., Liu, Y.C. and Dong, Z.Z., Yu, L.M., and Ma, Z.Q.: Microstructural evolution of oxide-dispersion-strengthened Fe–Cr model steels during mechanical milling and subsequent hot isostatic pressing. J. Mater. Sci. 48, 1826 (2013).Google Scholar
Hoogewijs, R., Fiermans, L., and Electron, J.: Electronic relaxation processes in the KLL'auger spectra of the free magnesium atom, solid magnesium and MgO. J. Electron Spectrosc. Relat. Phenom. 11, 171 (1977).Google Scholar
Sugama, T., Kukacka, L.E., and Carciello, N.: Study of interactions at water-soluble polymer/Ca (OH)2 or gibbsite interfaces by XPS. Cem. Concr. Res. 19, 857 (1989).Google Scholar
Chen, C., Splinter, S.J., Do, T., and Mcintyre, N.S.: Measurement of oxide film growth on Mg and Al surfaces over extended periods using XPS. Surf. Sci. 382, 652 (1997).Google Scholar
Di, L.M. and Bakker, H.: Mechanically induced phase transformation in the Nb3Au intermetallic compound. J. Phys.: Condens. Matter 3, 9319 (1991).Google Scholar
Koch, C.C.: Research on metastable structure using high energy ball milling at North Carolina State University (overview). Mater. Trans., JIM 36, 85 (1995).Google Scholar
Capolungo, L., Jochum, C., Cherkaoui, M., and Qu, J.: Homogenization method for strength and inelastic behavior of nanocrystalline materials. Int. J. Plast. 21, 67 (2005).Google Scholar
Kimura, Y., Takaki, S., Suejima, S., Uemor, R., and Tamehiro, H.: Ultra grain refining and decomposition of oxide during super-heavy deformation in oxide dispersion ferritic stainless steel powder. ISIJ Int. 39, 176 (1999).Google Scholar