Nanosized oxide phases in oxide-dispersion-strengthened steel PM2000

Nanosized oxide phases in oxide-dispersion-strengthened steel PM2000
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氧化物弥散强化钢 PM2000 中的纳米氧化物相

DOI:
10.1080/14786435.2021.1979677
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发表时间:
2021-10
影响因子:
1.6
通讯作者:
Shen Yinzhong
Shen Yinzhong
中科院分区:
材料科学3区
文献类型:
--
作者:
Wang Yuan;Lin Jian;Liu Bocong;Chen Yifeng;Li Dehui;Wang Hui;Shen Yinzhong

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摘要氧化物弥散强化钢是核裂变和聚变领域很有前途的候选材料。利用透射电子显微镜对轧制后的ODS钢PM2000中的纳米氧化物颗粒进行了研究。钢中纳米颗粒均匀分布,大颗粒弥散分布不均。钢中存在Al_2Y_4O_9、Y_3Al_5O_(12)和Y_3Al_2O_3三种纳米氧化物相。确定了纳米氧化铝Y氧化物Al_2Y_4O_9具有正交的P-Bravais晶格,而不是单斜的P-Bravais晶格。确定了由Y_3Al_5O_(12)和Y_3Al_2O_3组成的纳米Y-Al_2O_3。钢中Al_2Y_4O_9/Y_3Al_5O_(12)/Y_3Al_2O_3相的形成机制是热挤压/热轧工艺过程的结果。Al从钢中扩散到Y_2O_3颗粒碎片中,促进了Al_2Y_4O_9/Y_3Al_5O_(12)/Y_2O_3相的形核和长大。
ABSTRACT Oxide-dispersion-strengthened (ODS) steels are promising material candidates for nuclear fission and fusion applications. Nanosized oxide particles in as-rolled ODS steel PM2000 were investigated by using transmission electron microscopy. Uniformly distributed nanosized particles and heterogeneously distributed large dispersoids were observed in the steel. Three nanosized oxide phase types, Al2Y4O9, Y3Al5O12 and YAlO3, were present in the steel. Nanosized aluminum yttrium oxide Al2Y4O9, which has an orthorhombic P Bravais lattice rather than a monoclinic P Bravais lattice, was identified. Nanosized yttrium aluminum oxides that consisted of Y3Al5O12 and YAlO3 were also identified. The formation mechanism of Al2Y4O9/Y3Al5O12/YAlO3 phases in the steel resulted from the processing (hot-extrusion/hot-rolling) procedures. Al diffusion from the steel matrix into the Y2O3 particle fragments induced the nucleation and growth of the Al2Y4O9/Y3Al5O12/YAlO3 phases.
DOI: 10.1007/bf02646711
发表时间: 1978-02
期刊: Metallurgical Transactions A
影响因子: --
作者:
F. G. Wilson;B. Knott;C. DesForges
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DOI: 10.3891/acta.chem.scand.45-0030
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影响因子: --
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DOI: 10.1107/s0365110x57000778
发表时间: 1957-01-01
期刊: ACTA CRYSTALLOGRAPHICA
影响因子: --
作者:
GELLER, S
通讯作者: GELLER, S
DOI: --
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影响因子: 3.1
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