Microstructure evolution and mechanical properties of Fe–Cr–B alloy during directional solidification
Source abstract
Abstract
This study investigated microstructure formation as a function of solidification velocity during the directional solidification (DS) of Fe–Cr–B alloy. The experiments showed that the size, volume fraction and orientation of borides were effectively controlled. With the increase of solidification velocity, boride morphology is modified and the martensite transforms to the cellular structure at 2 μm/s and the equiaxed structure at 500 μm/s. The corresponding mechanical properties were compared with those of the ingot samples. The toughness and strength of the DS samples were approximately 155% and 70% higher, respectively, than those of the ingot samples. Field emission scanning electron microscopy (SEM), electron backscatter diffraction (EBSD) and analysis of the morphology and volume fraction of borides revealed the underlying mechanisms behind these enhancements. This study provides insight into microstructure control and contributes to the understanding of the mechanical properties of high–performance Fe–Cr–B alloys.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metal Alloys Wear and Properties · Microstructure and Mechanical Properties of Steels · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Improving the sliding wear and strain behavior of a high–chromium white cast iron modified with Mn and Al
2. Microstructure and properties of Cu–bearing hypereutectic high chromium cast iron
3. Effects of silicon in high–Cr white cast irons
4. Inoculation mechanism and strengthening effect of V–based multi–element multiphase inoculant on high chromium cast iron10.1016/j.jallcom.2023.171065 ↗
5. Study of the corrosion resistance of high chromium white cast Iron welds in the presence of NaOH (30% w/w)10.1016/j.jmrt.2024.04.149 ↗
6. A novel low carbon steel/hypereutectic high–chromium white cast iron welded joint with heterogeneous structure
7. Effects of chromium carbide volume fraction on high–stress abrasion performance of NbC–bearing high chromium white cast irons
8. Electron microscopy of carbides in annealed 28wt% Cr –1 wt% (Mo/W) cast irons10.1016/j.matchar.2023.112723 ↗
9. Modifying effect of a new boron–barium ferroalloy on the wear rsistance of low–chromium cast iron10.3390/met12071153 ↗
10. Fe–Cr–B–based wear–resistant alloys – a review on microstructure and tribological properties10.1016/j.jmrt.2024.11.143 ↗
11. The influence of Mn content on Fe2B properties and its impact at the αZ–Fe16C2/Fe2B interface10.1016/j.vacuum.2024.113056 ↗
12. First–principles study of active element (K, Ca, Na, Y) adsorption on Fe2B (002) surface
13. Regulation in mechanical properties and structural morphology of M2B–type borides in Fe–B–C alloy
14. Three–body abrasive wear behaviors and mechanism analysis of Fe–B–C cast alloys with various Mn contents10.1016/j.jmrt.2021.07.035 ↗
15. The relationships among microstructure, impact toughness and wear resistance in newly developed austempered low alloy white cast iron10.1016/j.jallcom.2024.177983 ↗
16. Microstructure,mechanical properties and toughening mechanism of directional Fe2B crystal in Fe–B alloy with trace Cr addition10.1016/j.jmst.2020.03.058 ↗
17. The novel hybrid concept on designing advanced multi-component cast irons: effect of boron and titanium (Thermodynamic modelling, microstructure and mechanical property evaluation)10.1016/j.matchar.2023.112691 ↗
18. Effect of in–situ nanoparticles induced by Ti addition on the microstructure and tribological properties of Fe–Cr–B alloys10.1016/j.jmrt.2024.02.199 ↗
19. Hardness and modulus of Fe2B, Fe3(C,B), and Fe23(C,B)6 borides and carboborides in the Fe–C–B system10.1016/j.matchar.2017.11.012 ↗
20. Effects of solidification conditions on the microstructural morphologies and strengths of hypereutectic high–chromium white cast iron castings10.1016/j.msea.2023.145692 ↗
21. Effects of chemical composition and solidification rate on the solidification behavior of high–Cr white irons10.3390/met14030276 ↗
22. The spheroidization behavior of low alloy white cast iron and its effect on impact toughness and wear resistance10.1016/j.jallcom.2024.178373 ↗
23. Influence of vanadium content and cooling rate on the characteristics of vanadium–alloyed spheroidal graphite cast irons10.1016/j.jallcom.2022.168017 ↗
24. Architecture of a remelted layer with the nano–lamellar structure at the surface of FeB materials via laser remelting to resist liquid aluminum corrosion10.1016/j.matchar.2024.114480 ↗
25. Influence of die temperature control on solidification and the casting process
26. Liquid morphology during diffusion–controlled liquid migration in thermal stabilization of directional solidification10.1016/j.ijthermalsci.2021.106896 ↗
27. Microstructure evolution in grey cast iron during directional solidification10.1007/s12613-017-1474-6 ↗
28. High wear resistance hypoeutectic Fe–C–B alloy by hot rolling
29. Relation of cooling rate, undercooling and structure for rapid solidification of iron melt10.1016/j.commatsci.2016.11.025 ↗
30. Microstructure evolution and mechanical properties of Fe–Cr–B alloys with varying Mo additions10.1016/j.jmrt.2024.07.141 ↗
31. Exceptional enhanced ductility and toughness in a high-boron Fe–Cr–W–B forging alloy via optimized boride morphology10.1016/j.matchar.2025.114724 ↗
32. Microstructure and tensile properties of graphite ductile iron improved by minor amount of dual–phased TiC–TiB2 nanoparticles10.1002/adem.202100246 ↗
33. Effect of boron on microstructure evolution and properties of wear-resistant cast Fe–Si–Mn–Cr–B alloy10.1016/j.jmrt.2020.03.081 ↗
34. Effect of silicon content on microstructures and properties of directionally solidified Fe–B alloy10.3390/ma15175937 ↗