Preparation and Characterization of Fe-Based Metallic Glasses with Pure and Raw Elements

作     者：Nassima Seghairi Badis Bendjemil Gabriel Lavorato Alberto Castellero Marcello Baricco 

作者机构：Dipartimento di Chimica I.F.M/NIS/CNISM/INSTMUniversitàdi TorinoVia Giuria 910125 TrinoItaly University of Larbi Ben M'hidiOum El BouaghiAlgeria LASEAFaculty of SciencesDepartment of ChimistryUniversity of AnnabaAlgeria University of GuelmaP.O.Box 1224000 GuelmaAlgeria 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2012年第29卷第11期

页      面：207-210页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Supported by Regione Piemonte under Grant No D23 the WWS Project of the Univerity of Torino 

主　　题：alloy casting roller 

摘      要：Amorphous alloys with a composition(at.%)Fe_(48)Cr_(15)Mo_(14)C_(15)B_(6)Y_(2) were prepared by using either pure elements(alloy B1)or a commercial AISI430 steel as a base material(B2).When prepared from pure elements,alloy(B1)could be cast in plate form with a fixed thickness of 2 mm and variable lengths between 10 and 20 mm by means of copper-mold injection in an air *** the case of alloy B2,prepared by using commercial grade raw materials,rods of 2 mm diameter are ***(B1 and B2)of width 5 mm and thickness about 30μm are prepared from the arc-melted ingots using a single roller melt spinner at a wheel speed of 40 m/*** thermal and structural properties of the samples are measured by a combination of differential scanning calorimetry(DSC),x-ray diffraction and scanning electron *** compositions are checked by energy dispersive spectroscopy analysis.X-ray diffraction and scanning electron microscopy observations confirm that an amorphous structure is obtained in all the samples.A minor fraction of crystalline phases(oxides and carbides)is detected on the as-cast *** of hardness and Young modulus were measured by nanoindentation for both the *** effects of adverse casting conditions(such as air atmosphere,non-conventional injection copper mold casting and the partial replacement of pure elements with commercial grade raw materials)on the glass formation and properties of the alloy are discussed.