Nitrogen alloying of the 12% Cr martensitic-ferritic steel

Kudryavtsev, A. S.; Artem’eva, D. A.; Mikhailov, M. S.

doi:10.1134/s0031918x17080087

Cited by 5 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[16,[21][22][23] A schematic graphic of the complete processing used in this work is presented in Figure 1. 4Cr-2Ni-0.5Mn-0.5Si-0.4Mo-0.1 C 1.57 MPa 0.09-0.29 [22] 14Cr-1Mo-0.5Ni-0.25Mn-0.25 C 0.4 MPa 0.17-0.33 [7] 15Cr-1Mo-0.3 C Pressurized induction furnace (value not reported) 0.55 [37] 12Cr-1Mo-1Ni-0.7Mn-0.15Nb-0.1 C 0.1 MPa 0.017-0.061 [38] 18Cr-0.4Si-0.2Mn-0.03 C High pressure (value not reported) 0.4-1.2 [25] 15Cr-1Mo-0.3 C 0.4 MPa 0.4 [26] 15Cr-1Mo-0.5Mn-0.4Si-0.5 C 0.4 MPa 0.16-0.54 [27] 15Cr-1Mo-0.4Mn-0.3 C 0.4 MPa 0.44 [28] 14Cr-0.5Mo-0.51 C 0.1 MPa 0.14 [9] 17Cr-4.0Ni-0.4 C 0.1 MPa 0.23 [9] Table 2. Commercial cold work steels.…”

Section: Methodsmentioning

confidence: 99%

Novel Martensitic High Carbon–Nitrogen Steel Produced by Casting at Low Pressure

Coha-Vesga

Mendoza-Oliveros

Pérez-Villamil

et al. 2022

steel research int.

View full text Add to dashboard Cite

Nitrogen‐containing steels have become an attractive material in industrial fields due to their excellent mechanical properties. Nevertheless, the current manufacturing methods to produce nitrogen steels are linked to technologies with high working pressures. Alloying elements such as Cr, Mn, and Mo enhance the solubility of nitrogen in the melt, which allows the production at atmospheric pressure. Herein, carbon–nitrogen martensitic steels are produced at low pressure (7 × 105 Pa). The composition is designed through the CALPHAD method using two carbon contents (0.7 and 1.3 wt%). The alloy is produced in an induction furnace under N2 atmosphere to mitigate desorption. Thermomechanical and heat treatments are performed. The alloys are analyzed using optical emission spectroscopy, X‐ray diffraction, optical microscopy, and scanning electron microscopy (SEM) with energy‐dispersive spectroscopy (EDS). The mechanical evaluation is conducted using hardness analysis. The steel presents a nitrogen content of 0.15 wt%, in agreement with the thermodynamic calculations. SEM and EDS results show the presence of Cr and Nb precipitates in a martensitic structure. The highest hardness values are obtained in specimens heat treated by tempering at 400 °C for 2 h and air cooling, achieving 57.4 and 59.7 Hardness Rockwell C for samples with 0.7 and 1.3 wt% C, respectively.

show abstract

Section: Methodsmentioning

confidence: 99%

Novel Martensitic High Carbon–Nitrogen Steel Produced by Casting at Low Pressure

Coha-Vesga

Mendoza-Oliveros

Pérez-Villamil

et al. 2022

steel research int.

View full text Add to dashboard Cite

show abstract

“…

…”

mentioning

confidence: 99%

Effect of cooling rate on microstructure and mechanical properties of CB2 tempered martensitic steel

Liu

Zhang

et al. 2020

China Foundry

View full text Add to dashboard Cite

I n recent years, high-chromium heat-resistant ferritic steels with tempered martensite lath structure (TMLS) have been widely used in fossil power plants [1][2][3] . A new generation of heat-resistant ferritic steels are extensively applied in production of key components of fossil power plants with operating temperatures up to 630 °C [4,5] . Many researchers have studied the 9Cr-1.5Mo-1Co cast steel, referred to as CB2 [6][7][8] . CB2 steel containing tempered martensite structure can be used in boiler components being exposed to ultra-supercritical conditions (USC), such as a steam temperature of 630 °C and a pressure of 30 MPa [9][10][11][12] .Tempered martensitic heat-resistant steels can be strengthened by solid solution hardening [13] , precipitation hardening [14] , fine grain hardening [15] and lath hardening [16] . Precipitation hardening and lath hardening are the main strengthening methods for large steel castings to be used under ultra-supercritical conditions. Changes in precipitates and martensite can be achieved through changes in chemical composition and heat treatment. Changes in chemical composition and heat treatment are common approaches to improve steel material properties. The role of precipitates and matrix structure in realization of structural heredity was reported [17,18] . The effect of cooling rate on microstructure and mechanical properties began to be noticed. It has been reported that the distribution and

show abstract

Optimizing the Microstructure and Mechanical Properties of Quenching and Partitioning 12% Chromium Stainless Steel Through Nitrogen Addition and Quench Temperature Control

Nazari,

Ghasemi

2024

J. of Materi Eng and Perform

View full text Add to dashboard Cite

Nitrogen alloying of the 12% Cr martensitic-ferritic steel

Cited by 5 publications

References 12 publications

Novel Martensitic High Carbon–Nitrogen Steel Produced by Casting at Low Pressure

Novel Martensitic High Carbon–Nitrogen Steel Produced by Casting at Low Pressure

Effect of cooling rate on microstructure and mechanical properties of CB2 tempered martensitic steel

Optimizing the Microstructure and Mechanical Properties of Quenching and Partitioning 12% Chromium Stainless Steel Through Nitrogen Addition and Quench Temperature Control

Contact Info

Product

Resources

About