Mechanical and microstructural characterization of new tungsten alloys

International Seminars of Frontiers in Materials Science UPM-CIE Moncloa

08/01/2014

Title: Mechanical and microstructural characterization of new tungsten alloys

Date: Monday 13th January at 09:30

Place: E.T.S. Civil Engineering, basement 1

Speaker: María Vega Aguirre

Free admission

Summary

The development of fusion energy demands new materials for the construction of reactors. The extreme conditions of temperature, the resistance and the neutron irradiation are boosting the research and development of materials which are able to withstand these conditions.

The tungsten belongs to the group of refractory metals. Its high temperature of fusion (>3400ºC) and its metallic feature give as a result a potential material to be used in extreme conditions of temperature and resistance. However, as most of the refractory metals, the service temperature is limited by the oxide stability which is made up at different temperatures. Similarly, the mechanic properties of the tungsten are determined by its BBC crystal lattice and therefore the ductile–brittle transition temperature (DBTT).

Because of these limitations, new alloys based on tungsten were developed. To search alloy elements and reinforcing particles that allow wider margins of temperature of service give as a result alloys with modified properties that must be studied.

Further information and contact details:
Dr. José Ygnacio Pastor, Organizer and Coordinator Scientific
Department of Material Science. Universidad Politecnica de Madrid
E.T.S. Civil Engineering, First Floor. Profesor Aranguren Road, E28040–Madrid
T. (+34) 913 366 684. F. (+34) 913 366 680. jypastor@mater.upm.es

Tag: Materials for the Future    Source: CEI Campus Moncloa

Event date:

13/01/2014