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Abstract. The local order in Zr52.5Hf2Ti7.5Cu20Al10Ni8 alloy is investigated by perturbed angular correlation (PAC) in the as-prepared state and after different crystallization steps. The initial amorphous stage was checked by differential scanning calorimetry and x-ray diffraction experiments. PAC results showed that the initial amorphous state is well described by a dense random packing of ions. After the first crystallization step (Ta=723 K) at least two two wide distributions of frequencies are observed. One of them can be associated with a Ti2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. distributions of frequencies are observed. One of them can be associated with a Ti2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. correlation (PAC) in the as-prepared state and after different crystallization steps. The initial amorphous stage was checked by differential scanning calorimetry and x-ray diffraction experiments. PAC results showed that the initial amorphous state is well described by a dense random packing of ions. After the first crystallization step (Ta=723 K) at least two two wide distributions of frequencies are observed. One of them can be associated with a Ti2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. distributions of frequencies are observed. One of them can be associated with a Ti2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. The local order in Zr52.5Hf2Ti7.5Cu20Al10Ni8 alloy is investigated by perturbed angular correlation (PAC) in the as-prepared state and after different crystallization steps. The initial amorphous stage was checked by differential scanning calorimetry and x-ray diffraction experiments. PAC results showed that the initial amorphous state is well described by a dense random packing of ions. After the first crystallization step (Ta=723 K) at least two two wide distributions of frequencies are observed. One of them can be associated with a Ti2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. distributions of frequencies are observed. One of them can be associated with a Ti2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. a=723 K) at least two two wide distributions of frequencies are observed. One of them can be associated with a Ti2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. 2Ni-type phase that may also be observed in the X-ray diffraction pattern at a trace level. Further heat treatments lead to the precipitation of different intermetallic equilibrium compounds: Zr2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step. 2Cu, ZrAl2. These results in combination with DSC and X-ray determinations on the annealed alloy may help to identify the mechanisms for phase formation upon each annealing step.

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