Thermal Evolution of Fe_(65)Ni_(20)Nb_6B_9 Nanocrystalline Metastable Alloy

机译：Fe_（65）Ni_（20）Nb_6B_9纳米晶亚稳合金的热演化

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The alloy Fe_(65)Ni_(20)Nb_6B_9 was obtained from the elemental constituents in a high-energy planetary ball mill and was studied by ~(57)Fe Mossbauer effect spectroscopy, Mossbauer thermal scans and X-ray diffraction. The as prepared nanocrystalline alloy consisted primarily of metastable bcc α-Fe(Ni) nanocrystals (57 nm average size) and small amounts of γ-(Fe,Ni) with Ni concentration of about 58%. Up to about 693 K only defect recovery is inferred. Between 693 and 873 K the α-phase transformed gradually into the fcc γ-phase, whose starting Ni concentration decreased continuously with increasing temperature, reaching a final value which was below 32 at%.

机译：Fe_（65）Ni_（20）Nb_6B_9合金是从高能行星式球磨机中的元素成分获得的，并通过〜（57）Fe Mossbauer效应光谱，Mossbauer热扫描和X射线衍射进行了研究。所制备的纳米晶合金主要由亚稳态的bccα-Fe（Ni）纳米晶体（平均尺寸为57 nm）和少量的γ-（Fe，Ni）组成，其中Ni的浓度约为58％。最多只能推断到693K。在693至873 K之间，α相逐渐转变为fccγ相，其起始Ni浓度随温度升高而连续降低，最终值低于32 at％。

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来源
《International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2003); 20030824-20030828; Foz do Lguacu; BR》|2003年|P.571-575|共5页
会议地点 Foz do Iguacu(BR);Foz do Iguacu(BR)
作者
P. Mendoza Zelis; C. Rodriguez Torres; A.F. Cabrera; M. Fernandez van Raap; G.A. Pasquevich; F.H. Sanchez; A. Gonzalez; J.J. Sunyol;
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作者单位

Departamento de Fisica, Universidad Nacional de La Plata, La Plata, Argentina;

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会议组织
原文格式 PDF
正文语种 eng
中图分类材料结构及物理性质;
关键词
Fe_(65)Ni_(20)Nb_6B_9; mechanical alloying; moessbauer effect spectroscopy; XRD; α→β FeNi transition;

机译：Fe_（65）Ni_（20）Nb_6B_9;机械合金化;莫氏鲍尔光谱; XRD;α→βFeNi转变;

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3. Formation of metastable phase and its influence on the solidification microstructure of highly undercooled eutectic Fe_(40)Ni_(40)B_(20) alloy [J] . Ke Zhang, Feng Liu, Bin Gu Philosophical Magazine Letters . 2014,第1a3期

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4. Thermal Evolution of Fe_(65)Ni_(20)Nb_6B_9 Nanocrystalline Metastable Alloy [C] . P. Mendoza Zelis, C. Rodriguez Torres, A.F. Cabrera, International symposium on metastable, mechanically alloyed and nanocrstalline materials . 2004

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5. Modeling Thermally-driven Microstructure Evolution in Nanocrystalline Materials [D] . Chen, Zhanyang. 2018

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Thermal Evolution of Fe_(65)Ni_(20)Nb_6B_9 Nanocrystalline Metastable Alloy

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