Some aspects of melting high-nitrogen steel Kh21G17AN2 in plasma arc furnace

2020 ◽  
Vol 2020 (2) ◽  
pp. 23-26
Author(s):  
V.R. Burnashev ◽  
◽  
Yu.O. Nikitenko ◽  
В.В. Yakusha ◽  
I.V. Sheiko ◽  
...  
Keyword(s):  
Arc Furnace ◽  
Plasma Arc ◽  
High Nitrogen Steel ◽  
High Nitrogen ◽  
Nitrogen Steel

scholarly journals Dynamic Mechanical Properties of High Nitrogen Steel under Combined Loading

2021 ◽  
Vol 1855 (1) ◽  
pp. 012009
Author(s):  
Zizhen Yang ◽  
Cheng Miao ◽  
Hailing Wu ◽  
Tao Zhong ◽  
Lihong Bai ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Combined Loading ◽  
High Nitrogen Steel ◽  
High Nitrogen ◽  
Dynamic Mechanical ◽  
Nitrogen Steel

Peculiarities of tensile deformation and fracture of high-nitrogen steel obtained by electron beam additive manufacturing

2020 ◽  
Author(s):  
Sergey V. Astafurov ◽  
Elena G. Astafurova ◽  
Kseniya A. Reunova ◽  
Evgenii V. Melnikov ◽  
Marina Yu. Panchenko ◽  
...  
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Tensile Deformation ◽  
High Nitrogen Steel ◽  
High Nitrogen ◽  
Deformation And Fracture ◽  
Nitrogen Steel

Research of Flow Simulation with High-Pressure and Bottom-Blowing Nitrogen

2013 ◽  
Vol 634-638 ◽  
pp. 3110-3113
Author(s):  
Shu Huan Wang ◽  
He Jun Zhang ◽  
Ding Guo Zhao
Keyword(s):  
High Pressure ◽  
Flow Field ◽  
Molten Steel ◽  
Gas Content ◽  
High Nitrogen Steel ◽  
High Nitrogen ◽  
Nitrogen Steel ◽  
Bottom Blowing ◽  
Steel Flow ◽  
Pressure Factor

According to the actual situation of refining high nitrogen steel with the laboratory high pressure reaction axe, the molten steel flow field in the high-pressure and bottom-blowing nitrogen reactor was simulated by using the software Fluent. The rules of the influence of pressure factor on the molten steel flow field characteristics, turbulent kinetic energy and gas content were explored. According to the characteristics of the flow field and gas-liquid two phase structure, the rules of the influence of pressure factor on nitrogen concentration distribution were analyzed. So some useful theoretical basis and guidance were provided for laboratory refining high nitrogen steel and industrial production in the future.

Influence of Nitrogen and Heat Input on Weld Metal of Gas Tungsten Arc Welded High Nitrogen Steel

2007 ◽  
Vol 14 (5) ◽  
pp. 259-262 ◽  
Author(s):  
Lin ZHAO ◽  
Zhi-ling TIAN ◽  
Yun PENG ◽  
Yan-chang QI ◽  
Yan-jie WANG
Keyword(s):  
Weld Metal ◽  
Heat Input ◽  
High Nitrogen Steel ◽  
High Nitrogen ◽  
Gas Tungsten Arc ◽  
Nitrogen Steel ◽  
Gas Tungsten

Process-adapted temperature application within a two-stage rivet forming process for high nitrogen steel

2022 ◽  
pp. 146442072110686
Author(s):  
C-M Kuball ◽  
B Uhe ◽  
G Meschut ◽  
M Merklein
Keyword(s):  
Room Temperature ◽  
Temperature Management ◽  
High Nitrogen Steel ◽  
High Nitrogen ◽  
Forming Process ◽  
Two Stage ◽  
Nitrogen Steel ◽  
Temperature Application ◽  
Stage 1 ◽  
Forming Behaviour

Mechanical joining technologies like self-piercing riveting are gaining importance with regard to environmental protection, as they enable multi-material design and lightweight construction. A new approach is the use of high nitrogen steel as rivet material, which allows to omit the usually necessary heat treatment and coating and thus leads to a shortening of the process chain. Due to the high strain hardening, however, high tool loads must be expected. Thus, appropriate forming strategies are needed. Within this contribution, the influence of applying different temperatures for each forming stage in a two-stage rivet forming process using the high nitrogen steel 1.3815 is investigated. The findings provide a basic understanding of the influence of the temperature management when forming high nitrogen steel. For this purpose, the rivets are not formed at the same temperature in each stage, but an elevated temperature is applied selectively. Different process routes are investigated. First, cups are manufactured in stage 1 at room temperature, followed by stage 2 at 200°C. Second, cups are formed in stage 1 at 200°C and used for stage 2 at room temperature. By comparing the findings with results when applying the same temperature in both stages, it is shown that the temperature during the first forming operation has an effect on the forming behaviour during the second forming stage. The required forming forces and the resulting rivet hardness can be influenced by process-adapted temperature application. Furthermore, the causes for the temperature impact on the residual cup thickness in stage 1 are evaluated by a cause and effect analysis, which provides a deeper process understanding. The thermal expansion of the tool and the billet as well as the improved forming behaviour at 200°C are identified as the main influencing causes on the achieved residual cup thickness.

Sign in / Sign up

Export Citation Format

Share Document