Strengthening mechanism and precipitate evolution of a multi-application special engineering steel designed based on a hybrid idea
Source abstract
Abstract
Special engineering steel that combined the attractive properties of composite maraging steel, tool steel, structural steel, and stainless steel was designed as a hybrid steel (0.20 C-10.9 alloy elements wt%) based on a hybrid idea. The hybrid steel underwent solid solution treatment at 1020 °C, followed by different aging treatments. The best combination of properties and heat treatments was determined by analyzing the evolution of precipitates and mechanical properties. The strengthening mechanism was quantitatively elucidated. The results showed that the size of martensite slats and the diameter and number of precipitates increased upon increasing the aging temperature and time. The higher proportion of large-angle grain boundaries toughened the hybrid steel. The precipitate evolution occurred from a single Cr 2VC 2 to the gradual appearance of intermetallic phases such as CrNbN, MoNbN, and Cr 2 Nb. Dislocation strengthening and precipitation strengthening were the main strengthening mechanisms, which accounted for 80–92% of the yield strength. The contributions of dislocation strengthening and precipitation strengthening to the yield strength could be adjusted by changing the microstructure by using different aging treatments. The strength and plasticity were optimally matched. The mechanical properties of the hybrid steel aged at 540 °C for 8 h were the best due to the combined effect of multiple strengthening mechanisms. The ultimate tensile strength reached a peak of 2009 ± 30 MPa with an elongation of 9.5 ± 0.8%. This hybrid idea may be applied to any other steels and provides a pathway for the development of special steel.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Microstructure and Mechanical Properties of Steels · Metal Alloys Wear and Properties · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (54)
Show source-provided references
1. High dislocation density–induced large ductility in deformed and partitioned steels10.1126/science.aan0177 ↗
2. Brittle intermetallic compound makes ultrastrong low-density steel with large ductility10.1038/nature14144 ↗
3. Novel medium-Mn (austenite + martensite) duplex hot-rolled steel achieving 1.6 GPa strength with 20% ductility by Mn-segregation-induced TRIP mechanism10.1016/j.actamat.2018.01.033 ↗
4. Progress and perspective of ultra-high strength steels having high toughness
5. Co-precipitation of nanoscale particles in steels with ultra-high strength for a new era10.1016/j.mattod.2016.07.002 ↗
6. Hybrid steel enhances component performance at reduced weight10.1007/s41777-018-0063-3 ↗
7. Microstructures and hardness of as-quenched martensites (0.1–0.5%C)10.1016/j.actamat.2011.05.061 ↗
8. Additive manufacturing of an Fe-Cr-Ni-Al maraging stainless steel: Microstructure evolution, heat treatment, and strengthening mechanisms10.1016/j.msea.2020.139470 ↗
9. Microstructure characteristics, strengthening and toughening mechanism of rolled and aged multilayer TWIP/maraging steels10.1016/j.msea.2019.138426 ↗
10. Synergistic enhancement of strength and ductility of cobalt-free maraging steel via nanometer-scaled microstructures10.1016/j.msea.2022.143099 ↗
11. Microstructure and mechanical properties of a novel Cu-reinforced maraging steel for wire arc additive manufacturing10.1016/j.msea.2021.141894 ↗
12. Aging phenomenon in low lattice-misfit cobalt-free maraging steel: Microstructural evolution and strengthening behavior10.1016/j.msea.2018.10.069 ↗
13. Strengthening a medium-carbon steel to 2800MPa by tailoring nanosized precipitates and the phase ration10.1016/j.msea.2019.05.076 ↗
14. Synergistic alloying effects on nanoscale precipitation and mechanical properties of ultrahigh-strength steels strengthened by Ni3Ti, Mo-enriched, and Cr-rich co-precipitates10.1016/j.actamat.2021.116788 ↗
15. Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation10.1038/nature22032 ↗
16. Additive manufacturing of 18% nickel maraging steels: Defect, structure and mechanical properties: a review10.1016/j.jmst.2021.10.056 ↗
17. Microstructure and mechanical properties of high manganese TRIP steel10.1016/S1006-706X(12)60088-0 ↗
18. Continuous cooling transformation diagrams and properties of micro-alloyed TRIP steels10.1016/j.msea.2006.01.128 ↗
19. Role of martensite/austenite constituents in novel ultra-high strength TRIP-assisted steels subjected to non-isothermal annealing10.1016/j.msea.2019.03.070 ↗
20. The effect of vanadium micro-alloying on the microstructure and the tensile behavior of TWIP steel10.1016/j.msea.2017.04.083 ↗
21. M. Improved tensile properties of partially recrystallized submicron grained TWIP steel10.1016/j.matlet.2009.09.057 ↗
22. The elastic–plastic transition of metals10.1016/j.ijplas.2016.04.009 ↗
23. Effect of carbon and manganese on the quenching and partitioning response of CMnSi steels10.2355/isijinternational.51.137 ↗
24. Optimization of the strain rate to achieve exceptional mechanical properties of 304 stainless steel using high speed ultrasonic surface mechanical attrition treatment10.1016/j.actamat.2010.05.044 ↗
25. Effects of rolling temperature on the microstructure and mechanical properties of Ti–Mo microalloyed hot-rolled high strength steel10.1016/j.msea.2014.03.054 ↗
26. Ultrastrong medium-entropy single-phase alloys designed via severe lattice distortion10.1002/adma.201807142 ↗
27. The effect of sheet processing on the microstructure, tensile, and creep behavior of INCONEL alloy 71810.1007/s11661-006-0149-0 ↗
28. Evolution of dislocations and twins in a strong and ductile nanotwinned steel10.1016/j.actamat.2016.03.057 ↗
29. Innovative processing of obtaining nanostructured bainite with high strength - high ductility combination in low-carbon-medium-Mn steel: process-structure-property relationship10.1016/j.msea.2018.01.120 ↗
30. Ma, Nanostructured high-strength molybdenum alloys with unprecedented tensile ductility10.1038/nmat3544 ↗
31. Characterization and modeling of manganese effect on strength and strain hardening of martensitic carbon steels10.2355/isijinternational.53.1076 ↗
32. Insight on nano-sized precipitate-hardened Ti-Mo 11Cr-11Ni martensitic stainless steel: experimental evidence and related patents investigation
33. Application of EBSD to analysis of microstructures in commercial steels10.1179/174328406X130948 ↗
34. Crystallographic features of lath martensite in low-carbon steel10.1016/j.actamat.2005.11.001 ↗
35. The morphology and crystallography of lath martensite in alloy steels10.1016/j.actamat.2006.07.009 ↗
36. Toughening of martensite matrix in high strength low alloy steel: Regulation of variant pairs10.1016/j.msea.2019.05.030 ↗
37. New insights into the mechanism of cooling rate on the impact toughness of coarse grained heat affected zone from the aspect of variant selection10.1016/j.msea.2017.07.095 ↗
38. Orientation gradients and geometrically necessary dislocations in ultrafine grained dual-phase steels studied by 2D and 3D EBSD10.1016/j.msea.2010.01.004 ↗
39. X-ray line broadening from filed aluminium and wolfram10.1016/0001-6160(53)90006-6 ↗
40. III. Dislocation densities in some annealed and cold-worked metals from measurements on the X-ray debye-scherrer spectrum10.1080/14786435608238074 ↗
41. The influence of silicon in tempered martensite: understanding the microstructure-properties relationship in 0.5–0.6 wt% C steels10.1016/j.actamat.2014.01.039 ↗
42. Understanding the factors influencing yield strength on Mg alloys10.1016/j.actamat.2014.04.064 ↗
43. The influence of silicon in tempered martensite: understanding the microstructure–properties relationship in 0.5–0.6 wt% C steels10.1016/j.actamat.2014.01.039 ↗
44. Strengthening mechanisms of Nb and V microalloying high strength hot-stamped steel10.1016/j.msea.2020.140115 ↗
45. Boundary strengthening over five length scales10.1002/adem.200500102 ↗
46. Modelling strength and ductility of ultrafine grained BCC and FCC alloys using irreversible thermodynamics10.1179/174328408X353750 ↗
47. Estimation of the system free energy of martensite phase in an Fe-Cr-C ternary alloy10.2355/isijinternational.45.1909 ↗
48. The isotropic shear modulus of multicomponent Fe-base solid solutions10.1016/S1359-6454(02)00096-4 ↗
49. Strengthening-toughening mechanism of cost-saving marine steel plate with 1000 MPa yield strength10.1016/j.msea.2021.142280 ↗
50. On the effect of chemical composition on yield strength of TWIP steels10.1016/j.msea.2017.01.080 ↗
51. Analytic model for the Orowan dislocation-precipitate bypass mechanism
52. Mechanical behavior and strengthening mechanisms in ultrafine grain precipitation-strengthened aluminum alloy10.1016/j.actamat.2013.09.042 ↗
53. Influence of thermal history on precipitation of hardening phases in tempered martensite 10%Cr-steel X12CrMoWVNbN 10-1-110.1016/S0921-5093(02)00684-6 ↗
54. Strengthening mechanisms of reduced activation ferritic/martensitic steels: A review10.1007/s12613-020-2121-1 ↗