Microstructural evolution in tungsten binary alloys under proton and self-ion irradiations at 800 °C

Miyazawa, Tatsuo; Kikuchi, Yuta; Ando, Masami; Yu, Ju-Hyeon; Yabuuchi, Kiyohiro; Nozawa, Takashi; Tanigawa, Hiroyasu; Nogami, Shuhei; Hasegawa, Akira

doi:10.1016/j.jnucmat.2023.154239

Cited by 5 publications

(3 citation statements)

References 65 publications

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“…We have considered binary W alloys studied under proton irradiation in the dose range (0  1) dpa and with proton energy E = 1 MeV [10]. Temperature of irradiation 800C, Vickers hardness HV test was carried out at room temperature.…”

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“…Temperature of irradiation 800C, Vickers hardness HV test was carried out at room temperature. The authors of [10] studied pure tungsten under the same conditions as alloys (Table 3). Formula (1) for W-1%Re and W-3%Re alloys is as follows:…”

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confidence: 99%

“…Vickers hardness HV of semples of tungsten alloys at various irradiation doses with protons with an energy 1 MeV at an irradiation temperature of 800C. Experimental data are taken from [10]. The relative error  is also shown, it is calculated by the formula:  = 1 -HVtheory/HVexperiment100%.…”

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Relationship Between the Mechanical Properties of an Irradiated Metal Alloy and the Mechanical Properties of the Irradiated Elements of the Alloy

Kizka¹

2023

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In the article, we are trying to find a general law that describes the physical properties of a complex compound through the same physical properties of compound elements. For metal alloys operated under extreme conditions - neutron and proton irradiations and thermal heating, the mechanical properties of these alloys and their elements have been studied. It turned out that the ultimate tensile strength of tantalum alloys used in the design of space reactors can be expressed in terms of the weighted sum of the ultimate tensile strengths of its elements in the range of neutron doses: (0 - 0.96) displacement per atom (dpa) for Ta–10W alloy and (1.4 - 1.7) dpa for T–111 alloy with a neutron energy of more than 0.1 MeV. For tungsten binary alloys used in the design of fusion reactors, the Vickers hardness can also be expressed in terms of the weighted sum of the Vickers hardnesses of the alloy elements in the range of proton irradiation doses: (0 - 0.05) dpa for W-1%Re alloy, (0.05 - 0.2) dpa for W-3%Re alloy and (0.05 - 1) dpa for W-1%Ta with a proton energy of 1 MeV.

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