Microstructure and mechanical property of in-situ nano-particle strengthened ferritic steel by novel internal oxidation

Tang, Hao; Chen, Xiaohua; Chen, Mingwen; Zuo, Longfei; Hou, Bin; Wang, Zidong

doi:10.1016/j.msea.2014.05.020

Cited by 36 publications

(24 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have applied the in-situ nanoparticles reinforcement technology in low carbon steel [52][53][54][55], ship building steel [33,56,57] and naval steel [58]. Titanium (Ti) was selected as the main forming element of microalloying in-situ nanophase in our research.…”

Section: Thermodynamic Calculationmentioning

confidence: 99%

“…As schematically shown in Figure 4, in-situ nanoparticle reinforced steel was fabricated by a special casting process with combination of multipoint dispersion supply and electromagnetic stirring [33]. Two key factors should be considered.…”

Section: Fabrication Techniquementioning

confidence: 99%

“…Second phase strengthening is an important reinforcement approach for as-cast metallic ingots [25,26], which are generally strengthened by dispersed micron/sub-micron particles, thus to dramatically reduce the plasticity especially for ceramic-type strengthening particles in high concentration [27][28][29][30][31][32]. According to the Orowan-Ashby model, the refinement of the second phase is conducive to both strength and plasticity for materials [25,[33][34][35][36]. When the particles are refined to nanometer scale, the second phase/matrix interface turns to be coherent or semi-coherent and therefore the interaction mode between dislocations and the second phases will change [37].…”

Section: Introductionmentioning

confidence: 99%

“…In other words, in the process of particles blocking dislocation motion, some dislocations enter the interior of particles along the coherent interface, which reduces the dislocation accumulation and meanwhile improves the macroscopic strength and plasticity of alloys [38]. As a result, overall mechanical performance of metals can be improved when refining second phase to the nanometer level [33,[38][39][40][41][42]. With more quantities and homogeneous distribution of nanoparticles in the matrix, not only better strengthening effect but also lower damage to the elongation can be achieved.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

In-Situ Nanoparticles: A New Strengthening Method for Metallic Structural Material

et al. 2018

Self Cite

View full text Add to dashboard Cite

Over the past several years, coherent interface strengthening was proposed and has since drawn much attention. Unfortunately, many fabrication techniques are restricted to very small size. Recently, a brand new method of in-situ nanoparticle strengthening was systematically investigated, which was proved to be an efficacious way to optimize microstructure and improve mechanical property by utilizing uniformly dispersed nanoparticles. In this review, we summarized recent related advances in investigated steels and Cu alloys, including details of preparation technique and characterization of in-situ nanoparticles. In-situ nanoparticles formed in the melt possess a coherent/semi-coherent relationship with the matrix, which has a similar effect of coherent interface strengthening. In this case, bulk metallic structural materials with dispersed nanoparticles in the matrix can be fabricated through conventional casting process. The effects of in-situ nanoparticles on grain refinement, inhibiting segregation, optimizing inclusions and strengthening are also deeply discussed, which is beneficial for obtaining comprehensive mechanical response. Consequently, it is expected that in-situ nanoparticle strengthening method will become a potential future direction in industrial mass production.

show abstract

Section: Thermodynamic Calculationmentioning

confidence: 99%

Section: Fabrication Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In-Situ Nanoparticles: A New Strengthening Method for Metallic Structural Material

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Researches on microstructure improvement by residual oxide inclusions in hot-deformed steels have been done. [3][4][5][6] However, evaluation of effect of inclusions on microstructure in steel base metal during the hot rolling and cooling process is relatively insufficient.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hot Deformation and Controlled Cooling Process on Microstructures of Ti–Zr Deoxidized Low Carbon Steel

Wang¹,

Wang²,

Guo-dong³

2016

ISIJ Int.

View full text Add to dashboard Cite

Effect of In Situ Nano-Particles on the Microstructure and Mechanical Properties of Ferritic Steel

Niu

Tang

Wang

et al. 2016

steel research int.

Self Cite

View full text Add to dashboard Cite

Transmission electron microscopy (TEM), optic microscopy (OM), and small-angle-X-ray-scattering(SAXS)are combined to comprehensively characterize the effect of endogenous nano-particles obtained by a new method, on microstructure and mechanical properties of the ferritic steel. Morphology of nano-particles, the change of microstructure, and the performance of steel are systematically studied. Results indicate that the endogenous nano-particles are titanium oxide which not only has a positive effect on refining the structure of ferrite steel, but also can significantly improve its strength without much losing its plasticity. Tensile tests reveal that tensile strength and yield strength of the investigated steel are increased from the original 392 and 247 MPa to 524 and 430 MPa, respectively. However, the value of the elongation-to-failure is only decreased by 3%, reached to 25% ultimately.

show abstract

Microstructure and mechanical property of in-situ nano-particle strengthened ferritic steel by novel internal oxidation

Cited by 36 publications

References 15 publications

In-Situ Nanoparticles: A New Strengthening Method for Metallic Structural Material

In-Situ Nanoparticles: A New Strengthening Method for Metallic Structural Material

Effect of Hot Deformation and Controlled Cooling Process on Microstructures of Ti–Zr Deoxidized Low Carbon Steel

Effect of In Situ Nano-Particles on the Microstructure and Mechanical Properties of Ferritic Steel

Contact Info

Product

Resources

About