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000837641 1001_ $$0P:(DE-HGF)0$$aMakhlai, V. A.$$b0$$eCorresponding author
000837641 245__ $$aDamaging of Tungsten and Tungsten–Tantalum Alloy Exposed in ITER ELM-like Conditions
000837641 260__ $$aAmsterdam [u.a.]$$bElsevier$$c2016
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000837641 520__ $$aThe damage of deformed double forged pure tungsten (W) and tungsten alloyed with 5 wt% tantalum (WTa5) have been studied in experimental simulations of ITER-like transient events with relevant surface heat load parameters (energy density up to 0.75 MJ/m2 and the pulse duration of 0.25 ms) as well as particle loads (varied in wide range from 1023 to 1027 ion/m2 s) with quasi-stationary plasma accelerator QSPA Kh-50. The plasma exposures were performed for the targets maintained at room temperature and preheated at 200 °C. The surface heat loads were either with no melting of W surface or above the melting threshold. The development of surface morphology of the exposed targets as well as cracking and swelling at the surface is discussed. Surface analysis was carried out with an optical microscopy and SEM. Surface modification and development of cracks led to increases of roughness of exposed surfaces. X-ray diffraction (XRD) has been used to study the micro-structural evolution of the exposed targets. The micro deformations of W and WTa5 are similar for targets exposed under similar conditions. The contribution of excess complexes of interstitial atoms in the formation of cracks after plasma irradiation was evaluated.
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000837641 7001_ $$0P:(DE-HGF)0$$aGarkusha, I. E.$$b1
000837641 7001_ $$0P:(DE-Juel1)129747$$aLinke, J.$$b2
000837641 7001_ $$0P:(DE-HGF)0$$aMalykhin, S. V.$$b3
000837641 7001_ $$0P:(DE-HGF)0$$aAksenov, N. N.$$b4
000837641 7001_ $$0P:(DE-HGF)0$$aByrka, O. V.$$b5
000837641 7001_ $$0P:(DE-HGF)0$$aHerashchenko, S. S.$$b6
000837641 7001_ $$0P:(DE-HGF)0$$aSurovitskiy, S. V.$$b7
000837641 7001_ $$0P:(DE-Juel1)171313$$aWirtz, M.$$b8$$eCorresponding author
000837641 773__ $$0PERI:(DE-600)2808888-8$$a10.1016/j.nme.2016.04.001$$gVol. 9, p. 116 - 122$$p116 - 122$$tNuclear materials and energy$$v9$$x2352-1791$$y2016
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