Effect of Carbide Density on Fatigue Limit of H21 Die Steel

Korade, D.N.; Ramana, K. V.; Jagtap, K.R.

doi:10.1007/s11665-020-04556-9

Cited by 6 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The HCF results were presented as the maximum stresses supported in axial tests when the stress ratio was zero. If these results were converted to stress amplitudes, the resultant values would be approximately 75–85% of those reported by Shinde et al [ 17 ] for H13 or by Korade et al [ 18 ] for H21 in rotating bending tests. This proportion aligns with the experimental differences observed between the axial and bending fatigue tests.…”

Section: Discussionmentioning

confidence: 84%

See 1 more Smart Citation

An Experimental Analysis of the High-Cycle Fatigue Fracture of H13 Hot Forging Tool Steels

et al. 2022

View full text Add to dashboard Cite

In this study, the axial fatigue behaviour of hot forging tool steels at room temperature was investigated. Fatigue tests were performed on two steels within the same H13 specification. The fatigue tests were carried out in the high-cycle fatigue domain under normal conditions. These tests were also performed on specimens in contact with a corrosive medium, applying stress values that led to the high-cycle fatigue domain under normal conditions for the sake of comparison. Both materials showed similar fatigue strengths when they were tested under normal conditions. In contrast, corrosion fatigue lives were much lower than in normal tests and differed significantly between the two steels. Crack initiation was triggered by microstructural and surface defects in the normal tests, whereas the formation of corrosion pits caused crack initiation in the corrosion fatigue tests. Moreover, a fracture surface analysis revealed dissimilar crack propagation areas between both steels, which suggested that both steels had different fracture toughness. These results were in line with the differences observed between the carbide and grain sizes of both of the material microstructures.

show abstract

Section: Discussionmentioning

confidence: 84%

“…As a result of these tests, a fatigue strength of 566 MPa was obtained at 10 7 cycles. Likewise, Korade et al [ 18 ] evaluated the fatigue behaviour of H21 steel using rotating bending HCF tests up to 10 7 cycles. The resultant fatigue strength for conventionally heat-treated specimens was found to be 560 MPa.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Analysis of the High-Cycle Fatigue Fracture of H13 Hot Forging Tool Steels

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Nevertheless, prohibiting the precipitation of carbonitrides may be quite difficult concerning the industrial practices involving H13 steel. Homogenization treatment is an effective way widely used to alleviate and eliminate the segregation and primary carbonitrides in H13 [5,14,15,21]. As reported previously [22], the carbonitrides undergo shrinking, passivation, fragmentation, and dissolution during isothermal holding from 1150 • C to 1230 • C. Thus, the sizes and quantities of precipitates are remarkably declined, and the composition is progressively changed after holding from 1150 • C to 1250 • C [21,22].…”

Section: Introductionmentioning

confidence: 97%

“…It has been well known that the formation of small Ti-containing precipitates could refine the structure by pinning the boundary against grain coarsening and acting as nucleation sites of ferrite [12,13]. Many reports have shown that the mechanical properties and thermal fatigue life of hot-work die steels are directly influenced by the fine nanosized precipitates [14,15], of which the characteristics could be improved through heat treatments [16][17][18]. Nevertheless, the large and stable primary precipitates would severely deteriorate the toughness of H13 steel [2,19] and have an adverse effect on the precipitation of fine nano-sized precipitates [20] and performance of the steel.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, researchers have been interested in the influences of different Ti contents on the characteristics of carbonitrides in H13 [2,10,11]. Some studies have been carried out on the evolution of MC precipitates [14,15,19] in H13 at high temperature. However, there are still no reports on the influence of Ti on the evolution of primary carbonitrides during isothermal holding in H13.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Ti and N Contents on the Characteristic Evolution and Thermal Stability of MC Carbonitrides Holding at 1250 °C in H13 Die Steel

Sun,

Gao,

Shang

et al. 2024

Metals

View full text Add to dashboard Cite

The evolution of MC-type primary carbonitrides (M=V, Ti, Mo; C=C, N) in terms of morphology, quantity, size and composition was systematically investigated in commercial H13 die steels with different Ti and N contents during thermal holding at 1250 °C for 5 h to 15 h. Results showed that the mean size and quantity of carbonitrides in the four samples had decreased during thermal holding. However, the mean size and quantity of MC carbonitrides had increased with increasing Ti contents when held at 1250 °C while the addition of N increased the quantity but decreased the sizes of the stable MC carbonitrides. It was concluded that the compact carbonitrides could be decomposed and changed into a fishnet structure when held at 1250 °C, especially in samples #1 and #2 containing lower Ti and N contents. The decomposition mechanism was illustrated considering the changes in Ti and Fe elements in carbonitrides. On the basis of the thermodynamic model, the thermal stability of (Tix,V1−x)(Cy,N1−y), with a larger x value, in samples #3 and #4 containing more Ti and N contents was generally higher than those in samples #1 and #2. To control the Ti-containing MC carbonitrides, the low Ti and N contents and high holding temperature should be taken into consideration.

show abstract

Assessment of the Fatigue Performance of Forging Die Steels in Corrosive and Lubricant Media

Calvo-García,

Valverde,

Riveiro

et al. 2024

Proceedings in Engineering Mechanics

View full text Add to dashboard Cite

Effect of Carbide Density on Fatigue Limit of H21 Die Steel

Cited by 6 publications

References 21 publications

An Experimental Analysis of the High-Cycle Fatigue Fracture of H13 Hot Forging Tool Steels

An Experimental Analysis of the High-Cycle Fatigue Fracture of H13 Hot Forging Tool Steels

Effects of Ti and N Contents on the Characteristic Evolution and Thermal Stability of MC Carbonitrides Holding at 1250 °C in H13 Die Steel

Assessment of the Fatigue Performance of Forging Die Steels in Corrosive and Lubricant Media

Contact Info

Product

Resources

About