Effect of vanadium on hydrogen embrittlement susceptibility of high-strength hot-stamped steel

Chen, Weijian; Gao, Pengfei; Wang, Shuai; Lu, Hongzhou; Zhao, Zhengzhi

doi:10.1007/s42243-020-00469-y

Cited by 30 publications

(16 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other researchers [18][19][20] had also found that the addition of vanadium reduced the hydrogen diffusion coefficient as a result of vanadium precipitates as hydrogen traps. Obviously, these researchers did not consider the change of grain boundary character distribution (GBCD) could influence hydrogen diffusion behaviour when discussing the effect of vanadium content on hydrogen diffusion behaviour in tested steels.…”

Section: Introductionmentioning

confidence: 96%

Role of vanadium content in hydrogen diffusion behavior in X80 pipeline steel

Cheng

Song

Mao

et al. 2022

Ironmaking & Steelmaking

View full text Add to dashboard Cite

The role of vanadium content in hydrogen diffusion behaviour in X80 pipeline steel has been investigated. The results show that the hydrogen diffusion coefficient decreases from 1.54 × 10 −6 cm 2 s −1 in 1# steel with 0.03 wt-% vanadium to 9.97 × 10 −7 cm 2 s −1 in 3# steel with 0.14 wt-% vanadium due to the increase in irreversible and reversible traps. With the increase in vanadium content, more vanadium carbides precipitate in tested steels. The length (or number) of the low angle grain boundaries and special grain boundaries increase because of grain refinement, making the number of reversible traps increase. The dynamic condition of diffusible hydrogen in 3# tested steel with the largest number of hydrogen traps is the weakest. To weaken hydrogen-induced cracking dynamic condition, it is recommended to add 0.14 wt-% vanadium to X80 pipeline steel.

show abstract

Section: Introductionmentioning

confidence: 96%

Role of vanadium content in hydrogen diffusion behavior in X80 pipeline steel

Cheng

Song

Mao

et al. 2022

Ironmaking & Steelmaking

View full text Add to dashboard Cite

show abstract

“…Effects of these microalloying elements mainly include solute drag, particle pinning, and precipitation strengthening [19]. Nevertheless, a further increase of microalloying elements failed to continuously enhance the strength [22,25,26] but significantly raised the cost of steels. This means that an optimised addition of microalloying elements needs to be explored.…”

Section: Introductionmentioning

confidence: 99%

Precipitation behaviour and strengthening mechanisms of V-bearing 1800 MPa grade hot-stamping steel

Cheng

Wang

Liu

et al. 2023

Materials Science and Technology

View full text Add to dashboard Cite

Achieving strength-ductility synergy of hot-stamping steel via microalloying technology has attracted great attention due to their pronounced precipitation strengthening. Nevertheless, the precipitation behaviours and characteristics have not been clearly unveiled. In this work, the effects of V content on the microstructure and mechanical properties of 1800 MPa grade hot-stamping steel are systematically studied. Massive V contained precipitates develop after hot-rolling and coiling, which refine the martensitic microstructure and retain in the matrix after austenitizing and quenching. The refined martensite with massive precipitates is responsible for the good mechanical properties. Generally, the tensile strength decreases slightly with increasing V content from 0.04% to 0.2%, as V consumes C in the martensite matrix by forming carbides and promoting precipitate coarsening.

show abstract

“…Chen et al 9 found that the mechanical properties of hot stamping steel containing niobium were better than that of hot stamping steel without niobium, and the uniformity and fineness of microstructure were obviously improved. Lin et al 10,11 studied the effect of niobium content on the original austenite grain size of 22MnB5 and 38MnB5 hot formed steels.…”

Section: Introductionmentioning

confidence: 99%

Effect of Microalloying on Microstructure and Mechanical Properties of Laser Weld of PHS Steel

Xia¹,

Liu

Song

et al. 2023

Mat. Res.

View full text Add to dashboard Cite

The laser welded joint of 2000MPa cold rolled annealed hot pressed steel (PHS) is easy to break during cold rolling. In this paper, the laser welding method is used to butt weld four kinds of PHS2000 with a thickness of 3.5mm. The four kinds of PHS2000 steel are added with elements of 0% Nb, 0.04% Nb, 0.06% Nb + Cr and 0.08% Nb + Cr. The microstructure of the four kinds of welded joints is compared and analyzed. The mechanical properties of the four kinds of joints are compared through hardness test and tensile test. The results show that after adding 0.04% Nb, residual austenite appears in the weld zone and fully quenched zone, the width of columnar crystal decreases, the average hardness of the weld zone decreases from 595HV to 408HV, and the tensile strength increases from 608MPa to more than 800MPa. For chromium containing steel, the increase of niobium content can reduce the size of columnar crystal in weld zone.

show abstract

Effect of vanadium on hydrogen embrittlement susceptibility of high-strength hot-stamped steel

Cited by 30 publications

References 37 publications

Role of vanadium content in hydrogen diffusion behavior in X80 pipeline steel

Role of vanadium content in hydrogen diffusion behavior in X80 pipeline steel

Precipitation behaviour and strengthening mechanisms of V-bearing 1800 MPa grade hot-stamping steel

Effect of Microalloying on Microstructure and Mechanical Properties of Laser Weld of PHS Steel

Contact Info

Product

Resources

About