| METALS AND METAL MATRIX COMPOSITES |
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| Effects of Transition Metal Minor Additions on Glass-forming Ability,Mechanical Properties,and Corrosion Resistance of Fe-based Bulk Metallic Glasses |
| SONG Haipeng1, ZHANG Guan1,2,3,*, FAN Xueru4, HUANG Yong2,5, XIE Lei4, ZHAO Dongmei1, LI Qiang4, REN Tiezhen3,*
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1 College of Intelligent Manufacturing Modern Industry (College of Mechanical Engineering), Xinjiang University, Urumqi 830017, China 2 Xinjiang Coal Mine Electromechanical Engineering Technology Research Center, Xinjiang Institute of Engineering, Urumqi 830023, China 3 School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China 4 School of Physics Science and Technology, Xinjiang University, Urumqi 830017, China 5 College of Mechanical and Electrical Engineering, Xinjiang Institute of Engineering, Urumqi 830023, China |
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Abstract Fe-based amorphous alloys (BMGs) have great potential for a variety of engineering applications due to their excellent hardness, wear and corrosion resistance. The method of micro addition can effectively improve the properties of alloys, but there are fewer studies on the effect of micro addition of transition group metals on the properties of Fe-based BMGs. Based on this, this study investigated the effects of micro additions of transition group metals on the glass-forming ability (GFA), thermal stability, mechanical properties, and corrosion resistance of Fe43Co7Cr15Mo12C15B6M2 (M=Mo, Hf, Mn, Zr, Nb, Ta, W, V, and Ti; in at.%) BMGs. The results show that only BMGs with the addition of Mo, Hf, Mn and Zr have a better GFA with a critical diameter greater than 1.5 mm. These four BMGs demonstrate excellent compressive strengths ranging from 4.5 GPa to 4.8 GPa and Vickers hardness between 1 208HV0.3 and 1 323HV0.3. Among them, the Fe-based BMGs with Zr addition exhibits superior corrosion resistance, attributed to the formation of corrosion-resistant ZrO2 through reactions between oxyphilic ions Zr4+ and oxygen ions. Furthermore, the presence of Zr enhances the generation of Cr3+ and Fe2+ ions, leading to the formation of a thicker and denser passivation film, which significantly improves corrosion resistance of the Fe-based BMGs. These findings provide valuable insights into the design and optimization of Fe-based BMGs with enhanced GFA and corrosion resistance.
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Published: 25 January 2026
Online: 2026-01-27
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