کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440990 | 1510371 | 2017 | 6 صفحه PDF | دانلود رایگان |
- FeNiCrMoPCB BMGs with a diameter of 2.5Â mm and good corrosion resistance are formed.
- The BMGs exhibit large ÎTx up to 60Â K and low Tg of below 690Â K.
- The BMGs show superior corrosion resistance in acid media to that of SUS316L steel.
- The BMGs exhibit high strength of over 3Â GPa with distinct plastic strain of 1.2%.
Co-addition of appropriate Mo, Cr and Ni in the Fe80P12C4B4 alloy not only enhances the thermal stability of the supercooled liquid and glass-forming ability (GFA) but also reduces the glass transition temperature (Tg) of the Fe-based metallic glass. The Fe55Ni15Cr7Mo3P12C4B4 bulk metallic glass (BMG) exhibits a low Tg of 690Â K, large supercooled liquid region (ÎTx) of 60Â K, and high GFA with a critical diameter of 2.5Â mm. The co-addition of Mo, Cr and Ni remarkably improves the corrosion resistance of the BMGs in 1Â M HCl and 0.5Â M H2SO4 solutions, which is superior compared to the SUS316L stainless steel. The alloys also possess high compressive yield strength of ~Â 3.01Â GPa with distinct plastic strain of ~Â 1.2%. The good combination of low Tg, large ÎTx, high GFA, excellent corrosion resistance and mechanical properties makes the developed (Fe, Ni, Cr, Mo)80P12C4B4 BMGs show great promise as anti-corrosion materials suitable for thermoplastic processing.
Journal: Journal of Non-Crystalline Solids - Volume 476, 15 November 2017, Pages 75-80