Partial recrystallization of gum metal to achieve enhanced strength and ductility
Source abstract
Abstract
Abstract Here we present a microstructure design approach which leads to partial recrystallization and nano-precipitation within the same single-step heat treatment. This produces a dual-constituent microstructure in Ti-Nb based gum metal, which consists of nano-ω-particle-rich ultrafine recrystallized grain chains embedded in ω-lean subgrain-containing recovered zones. This partially recrystallized microstructure exhibits an improved strength-ductility combination that surpasses the inverse strength-ductility relationship exhibited by materials with similar composition. The strengthening effects due to precipitates and grain refinement were studied by nanoindentation. The deformation mechanisms of the partially recrystallized material were investigated by in-situ scanning electron microscope tensile tests, micro-strain mapping and post-mortem microstructure characterization. The improved mechanical properties are attributed to the high yield strength of the recrystallized grains and the sequential activation of dislocation slip and dislocation channeling.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Titanium Alloys Microstructure and Properties · Microstructure and mechanical properties · Magnesium Alloys: Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (57)
Show source-provided references
1. High tensile ductility in a nanostructured metal10.1038/nature01133 ↗
2. Optimization of strength and ductility in nanocrystalline and ultrafine grained metals10.1016/S1359-6462(03)00394-4 ↗
3. Effects of heterogeneity on recrystallization kinetics of nanocrystalline copper prepared by dynamic plastic deformation10.1016/j.actamat.2014.03.036 ↗
4. On the deformation, recrystallization and texture of hot-rolled Mg–2.9Y and Mg–2.9Zn solid solution alloys-A comparative study10.1016/j.msea.2011.11.061 ↗
5. Micro-alloying Mg with Y, Ce, Gd and La for texture modification—a comparative study10.1016/j.msea.2009.12.036 ↗
6. Gottstein · 2004
7. Humphreys · 2004
8. Effect of cold working and heat treatment on recrystallization, mechanical properties and microstructure of high strength Ti15V3Al3Cr3Sn (Ti- beta) alloy10.4028/www.scientific.net/MSF.710.521 ↗
9. Recrystallization, precipitation, and resultant mechanical properties of rolled Al–Zn alloy after aging10.1016/j.msea.2016.01.079 ↗
10. Strengthening an austenitic Fe-Mn steel using nanotwinned austenitic grains10.1016/j.actamat.2012.03.035 ↗
11. Effect of process parameters on a metallurgical route providing nano-structured single phase steel with high work-hardening10.1002/adem.201100164 ↗
12. Multifunctional alloys obtained via a dislocation-free plastic deformation mechanism10.1126/science.1081957 ↗
13. Microstructural evolution and final properties of a cold-swaged multifunctional Ti-Nb-Ta-Zr-O alloy produced by a powder metallurgy route10.1016/j.msea.2013.03.029 ↗
14. Damage resistance in gum metal through cold work-induced microstructural heterogeneity10.1007/s10853-015-9105-y ↗
15. Omega phase transformation - morphologies and mechanisms
16. On the mechanism of superelasticity in Gum metal10.1016/j.actamat.2008.11.013 ↗
17. Study of the nanostructure of Gum Metal using energy-filtered transmission electron microscopy10.1016/j.actamat.2008.10.002 ↗
18. Origin of shear induced β to ω transition in Ti–Nb-based alloys10.1016/j.actamat.2015.03.040 ↗
19. Elastic deformation behavior of multi-functional Ti-Nb-Ta-Zr-O alloys10.2320/matertrans.46.3001 ↗
20. Ti based biomaterials, the ultimate choice for orthopaedic implants – a review10.1016/j.pmatsci.2008.06.004 ↗
21. The use of titanium for medical applications in the USA10.1016/0921-5093(96)10243-4 ↗
22. Mechanical biocompatibilities of titanium alloys for biomedical applications10.1016/j.jmbbm.2007.07.001 ↗
23. Evolution of microstructure and texture during recrystallization of the cold-swaged Ti-Nb-Ta-Zr-O alloy10.1007/s11661-007-9433-x ↗
24. Deformation characteristics in beta-phase Ti-Nb alloys10.1007/BF02814829 ↗
25. The stable and metastable Ti-Nb phase diagrams10.1007/BF02645466 ↗
26. Deformation mechanism of ω-enriched Ti–Nb-based gum metal: dislocation channeling and deformation induced ω–β transformation10.1016/j.actamat.2015.08.047 ↗
27. The competition between the alpha and omega phases in aged Ti-Nb alloys10.1007/BF02645136 ↗
28. The competition between martensite and omega in quenched Ti-Nb alloys10.1007/BF02645135 ↗
29. Martensitic transformation, shape memory effect and superelasticity of Ti-Nb binary alloys10.1016/j.actamat.2006.01.019 ↗
30. Omega transformation in cold-worked Ti-Nb-Ta-Zr-O alloys with low body-centered cubic phase stability and its correlation with their elastic properties10.1016/j.actamat.2012.09.041 ↗
31. Multi-probe microstructure tracking during heat treatment without an in-situ setup: case studies on martensitic steel, dual phase steel and β-Ti alloy10.1016/j.matchar.2015.11.019 ↗
32. A comparison of grain imaging and measurement using horizontal orientation and colour orientation contrast imaging, electron backscatter pattern and optical methods10.1046/j.1365-2818.1999.00571.x ↗
33. 2005
34. High resolution in situ mapping of microstrain and microstructure evolution reveals damage resistance criteria in dual phase steels10.1016/j.actamat.2015.05.038 ↗
35. Rolling and annealing textures of BCC metals
36. Texture inhomogeneity in a Ti-Nb-based beta-titanium alloy after warm rolling and recrystallization10.1016/j.msea.2007.06.077 ↗
37. Omega-phase in materials10.1016/0079-6425(82)90002-0 ↗
38. omega-Assisted nucleation and growth of alpha precipitates in the Ti-5Al-5Mo-5V-3Cr-0.5Fe beta titanium alloy10.1016/j.actamat.2009.01.007 ↗
39. Phase transformation during aging and resulting mechanical properties of two Ti-Nb-Ta-Zr alloys
40. Relationships between tensile deformation behavior and microstructure in Ti-Nb-Ta-Zr system alloys10.1016/j.msec.2004.12.014 ↗
41. Nonlinear elastic deformation behaviour of Ti-30Nb-12Zr alloys10.1016/j.scriptamat.2010.03.011 ↗
42. Enhancement of uniform elongation in high strength Ti-Mo based alloys by combination of deformation modes10.1016/j.msea.2011.02.071 ↗
43. Studies on single and duplex aging of metastable beta titanium alloy Ti-15V-3Cr-3Al-3Sn10.1016/j.jallcom.2014.03.183 ↗
44. Indentation size effects in crystalline materials: a law for strain gradient plasticity10.1016/S0022-5096(97)00086-0 ↗
45. A study on the geometry of dislocation patterns in the surrounding of nanoindents in a TWIP steel using electron channeling contrast imaging and discrete dislocation dynamics simulations10.1016/j.msea.2015.03.078 ↗
46. Theory of plastic deformation: properties of low energy dislocation structures10.1016/0921-5093(89)90290-6 ↗
47. Dislocation and twin substructure evolution during strain hardening of an Fe-22wt.%Mn-0.6wt.%C TWIP steel observed by electron channeling contrast imaging10.1016/j.actamat.2011.07.009 ↗
48. The deformation and ageing of mild steel: III discussion of results10.1088/0370-1301/64/9/303 ↗
49. The cleavage strength of crystals
50. Thermomechanical processing of beta titanium alloys - an overview10.1016/S0921-5093(97)00783-1 ↗
51. Lütjering · 2007
52. Low Young's modulus in Ti-Nb-Ta-Zr-O alloys: cold working and oxygen effects10.1016/j.actamat.2011.07.050 ↗
53. Effects of oxygen concentration and phase stability on nano-domain structure and thermal expansion behavior of Ti–Nb–Zr–Ta–O alloys10.1016/j.actamat.2015.08.054 ↗
54. The effect of alloy composition on instabilities in the β phase of titanium alloys10.1016/j.scriptamat.2016.01.024 ↗
55. Linear complexions: confined chemical and structural states at dislocations10.1126/science.aab2633 ↗
56. Nanolaminate transformation-induced plasticity-twinning-induced plasticity steel with dynamic strain partitioning and enhanced damage resistance10.1016/j.actamat.2014.11.010 ↗
57. Spectral TRIP enables ductile 1.1 GPa martensite10.1016/j.actamat.2016.03.070 ↗