{"product_id":"der-sprod-duktil-ubergang-in-ultrafeinkornigem-wolfram-von-carsten-bonnekoh","title":"Der Spröd-duktil-Übergang in ultrafeinkörnigem Wolfram","description":"Hohe Spröd-duktil-Übergangstemperaturen schließen den Einsatz von konventionell gefertigtem Wolfram (W) als Strukturwerkstoff aus. Ultrafeinkörnige (UFG) W-Werkstoffe zeigen jedoch den Spröd-duktil-Übergang bereits bei sehr tiefen Temperaturen und weisen folglich Raumtemperaturduktilität auf. Die korrelative Mikrostrukturanalyse offenbarte einen starken Zusammenhang zwischen der Übergangstemperatur und dem mittleren Korngrenzenabstand entlang der Rissfront. High brittle-ductile transition temperatures preclude the use of conventionally manufactured tungsten (W) as a structural material. Ultrafine grained (UFG) W materials, however, exhibit the brittle-ductile transition at very low temperatures and consequently exhibit room-temperature ductility. The correlative microstructure analysis revealed a strong correlation between the transition temperature and the mean grain boundary spacing along the crack front.\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783731512646\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783731512646","offer_id":47050566369605,"sku":"9783731512646","price":45.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/1c08c9fa-b030-4291-9d80-955fae07794a.jpg?v=1772173959","url":"https:\/\/shop.autorenwelt.de\/en\/products\/der-sprod-duktil-ubergang-in-ultrafeinkornigem-wolfram-von-carsten-bonnekoh","provider":"Autorenwelt Shop","version":"1.0","type":"link"}