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对含Ti的ODS铁素体钢在机械合金化(MA)及随后热固实化过程中,弥散相显著再细化的条件和机制进行了研究.结果表明:在机械合金化过程中,选用合理的工艺参数,所加入预加工粉中的弥散相-Y2O3将首先分解成钇和氧原子,并能均匀地溶入基体中;在随后的热固实化过程中,将以一种更加细小和稳定的复合氧化物-Y2Ti2O7的形式析出,并在钢的基体中分布更加均匀.

参考文献

[1] TIAN Yun;SHAN Bingquan;PAN Qingchun.Studies on ODS Ferritic Alloy for Advanced LMFBR Cladding Application in CISRI[A].,1995:110-115.
[2] Okuda T;Nomura S;Nakanishi M.Development of Oxide Dispersion Strengthened (ODS) Ferritic Alloys With Excellent High Temperature Creep Strength and Neutron Irradiation Resistance[A].,1989:1616-1621.
[3] Ukai S;Harada M;Okada H et al.Alloying Design of Oxide Dispersion Strengthened Ferritic Steel for Long Life FBRs Core Materils[J].Journal of Nuclear Materials,1993,204:65-73.
[4] Maurice D R;Courtney T H.The Physics of Mechanical Alloying.A First Report[J].Metallurgical and Materials Transactions,1990(21A):289-303.
[5] T. Okuda;M. Fujiwara .Dispersion behaviour of oxide particles in mechanically alloyed ODS steel[J].Journal of Materials Science Letters,1995(22):1600-1603.
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