Spray Forming Iron Based Amorphous Metals

2003 ◽  
Author(s):  
Leslie K. Kohler ◽  
Louis F. Aprigliano ◽  
A. S. Rao
Keyword(s):  
Spray Forming ◽  
Amorphous Metals ◽  
Iron Based

scholarly journals Corrosion Resistances of Iron-Based Amorphous Metals with Yttrium and Tungsten Additions in Hot Calcium Chloride Brine & Natural Seawater: Fe48Mo14Cr15Y2C15B6 and W-Containing Variants

2019 ◽  
Vol 3 (31) ◽  
pp. 485-496 ◽  
Author(s):  
Joseph C. Farmer ◽  
Jeffrey J. Haslam ◽  
Sumner D. Day ◽  
Tiangan Lian ◽  
Cheng K. Saw ◽  
...  
Keyword(s):  
Calcium Chloride ◽  
Amorphous Metals ◽  
Natural Seawater ◽  
Iron Based ◽  
And Tungsten

Synthesis and Properties of High-Manganese Iron-Based Bulk Amorphous Metals as Non-Ferromagnetic Amorphous Steel Alloys

2002 ◽  
Vol 754 ◽  
Author(s):  
S. Joseph ◽  
Gary J. Shiflet ◽  
V. Ponnambalam ◽  
Veerle M. Keppens ◽  
R. Taylor ◽  
...  
Keyword(s):  
Magnetic Transition ◽  
High Strength ◽  
Supercooled Liquid ◽  
Supercooled Liquid Region ◽  
Austenitic Steels ◽  
Amorphous Metals ◽  
Liquid Region ◽  
High Manganese ◽  
Steel Alloys ◽  
Iron Based

ABSTRACTHigh-manganese ferrous-based alloys containing 10–20 at. % Mn have been investigated as prospective iron-based structural amorphous metals with magnetic transition temperatures far below the ambient temperature. Many of these alloys are found to have a high reduced glass transition temperature of 0.6–0.63 and large supercooled liquid region of 40–90 °C. Rod-shaped amorphous samples with diameters reaching 4 mm are obtained by employing simple injection casting. The search for good glass-forming alloys has been guided by an atomistic approach coupled with the realization of low-lying liquidus temperatures via proper alloying. The tensile yield strengths and Vickers hardness of the new amorphous metals far exceed those known in high-strength steel alloys, and the elastic moduli are comparable to those reported for super-austenitic steels. The present high-manganese amorphous Fe-alloys also show promise as very good corrosion-resistant materials.

Hardness Indentation Studies On Metallic Glasses

2002 ◽  
Vol 754 ◽  
Author(s):  
Paul Wesseling ◽  
Peravudh Lowhaphandu ◽  
John. J. Lewandowski
Keyword(s):  
Metallic Glass ◽  
Test Temperature ◽  
Metallic Glasses ◽  
Room Temperature ◽  
Indentation Load ◽  
Amorphous Metals ◽  
Micro Hardness ◽  
Iron Based ◽  
Vickers Micro Hardness

ABSTRACTVickers micro-hardness indentations have been performed on a number of amorphous metals. The effects of changes in indentation load on the hardness and appearance of indents will be discussed for amorphous Al87Ni7Gd6. In addition, the effects of changes in test temperature on the micro-hardness and appearance of indentations in Vitreloy I are presented. A transition in deformation/flow character was detected with increasing test temperature for the Vitreloy I specimens. In addition, preliminary hardness data obtained at room temperature on an iron based metallic glass exhibited values in excess of 12 GPa without cracking.

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