scholarly journals Friction and wear behaviors of a high nitrogen austenitic stainless steel Fe-19Cr-15Mn-0.66N

2021 ◽  
pp. 25-25 ◽  
Author(s):  
Y.-X. Qiao ◽  
S.-L. Sheng ◽  
L.-M. Zhang ◽  
J. Chen ◽  
L.-L. Yang ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Electron Microscope ◽  
Austenitic Stainless Steel ◽  
Laser Scanning ◽  
Friction And Wear ◽  
Surface Hardness ◽  
High Nitrogen ◽  
Laser Scanning Confocal Microscope ◽  
Scanning Electron

The friction and wear behaviors of a Fe-19Cr-15Mn-0.66N high nitrogen austenitic stainless steel (HNSS) were investigated. Tribological investigations were carried out under different applied loads of 5 N, 10 N, 15 N and 20 N. Scanning electron microscope (SEM) and laser scanning confocal microscope (LSCM) were used to understand the wear mechanisms under different loads and the reasons for the improved wear resistance. The lower friction coefficient and improved wear resistance were observed with the increase in applied loads. Under a higher load, the friction enhanced the work hardening ability of HNSS, which in turn improved its surface hardness and thus the increased wear resistance of HNSS.

scholarly journals Microstructure and Microhardness of ZrO2 Reinforced PM 316L Austenitic Stainless Steel Composites Sintered in Ambient and Argon Atmosphere

2019 ◽  
Vol 8 (6) ◽  
pp. 38-42
Keyword(s):  
Stainless Steel ◽  
Electron Microscope ◽  
Austenitic Stainless Steel ◽  
Testing Machine ◽  
Argon Atmosphere ◽  
Steel Matrix ◽  
Matrix Composites ◽  
Hardness Testing ◽  
316L Austenitic Stainless Steel ◽  
Scanning Electron

The present study examines the microstructure and microhardness of zirconia (ZrO2) reinforced PM 316L austenitic stainless steel matrix composites. ZrO2 was added in a proportion of 1 wt% to 3 wt%. Powders were compacted into a disc of 11mm diameter and 2mm thick at 70kN. Compacts were sintered in an ambient and argon atmosphere at 1250oC for 30 minutes. Sintered compacts were then analyzed for microhardness using Vickers hardness testing machine, and microstructure was examined using a scanning electron microscope. The study revealed that the reinforcement of ZrO2 significantly enhanced the microhardness of PM 316L SS matrix composites with a microstructure consisting of irregular porosity and zirconia encapsulating the 316L SS particles.

Effect of Ce on Microstructure and Mechanical Properties of 21Cr-11Ni Austenitic Stainless Steel

2013 ◽  
Vol 711 ◽  
pp. 95-98
Author(s):  
Xiao Liu ◽  
Jing Long Liang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Electron Microscope ◽  
Austenitic Stainless Steel ◽  
Scanning Electron Microscope ◽  
Tensile Test ◽  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
Metallographic Examination ◽  
Scanning Electron

The effect of Ce on structure and mechanical properties of 21Cr11Ni austenitic stainless steels were studied by metallographic examination, scanning electron microscope (SEM), tensile test. The results show that the proper amount of Ce can refine microstructure of austenitic stainless steel. Fracture is changed from cleavage to ductile fracture by adding Ce to austenitic stainless steel. 21Cr11Ni stainless steel containing 0.05% Ce can improve its high temerature strength, and the strength is increased 21.81% at 1073K respectively comparing with that of 21Cr11Ni stainless steel without Ce.

The Characteristic of Surface Layers on Austenitic Stainless Steel after Glow-Discharge Nitriding Process

2010 ◽  
Vol 165 ◽  
pp. 165-168 ◽  
Author(s):  
Artur Sitko ◽  
Marek Szkodo ◽  
Maria Gazda
Keyword(s):  
Stainless Steel ◽  
Electron Microscope ◽  
Austenitic Stainless Steel ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Surface Layers ◽  
X Ray ◽  
Diffusion Layers ◽  
Chemical Constitution ◽  
Scanning Electron

This paper presents investigation of surface layers. The diffusion layers were produced by using different parameters of reactive atmosphere (N2:H2). The research of the surface layers was performed using scanning electron microscope (SEM). The results of energy dispersive X-ray (EDX) analysis and X-ray diffraction (XRD) analysis are presented. Research reveals the influence of chemical constitution of reactive atmosphere on the change of properties of nitrided layers.

Effects of Cold Deformation on Precipitation in Fe-18Cr-12Mn-0.48N High-Nitrogen Austenitic Stainless Steel

2012 ◽  
Vol 531-532 ◽  
pp. 97-102 ◽  
Author(s):  
Feng Shi ◽  
Xiao Wu Li ◽  
Yang Qi ◽  
Chun Ming Liu
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Grain Boundaries ◽  
Laser Scanning ◽  
Cold Deformation ◽  
Intermetallic Phase ◽  
Laser Scanning Confocal Microscopy ◽  
High Nitrogen ◽  
Σ Phase ◽  
Scanning Confocal Microscopy

The precipitation behaviors were investigated during isothermally aging at 700°C and 800°C after cold compressed by 30% in thickness in Fe-18Cr-12Mn-0.48N high-nitrogen austenitic stainless steel by using optical microscopy (OM), laser scanning confocal microscopy (LSCM) and transmission electron microscopy (TEM). The results show that precipitation morphology in cold-deformed sample is the same as non-cold-deformed sample, which also displays discontinuous cellular way. Cold deformation accelerates the precipitation of M2N phase. The precipitation occurs at not only grain boundaries but also twin grain boundaries in the experimental steel. In cold-deformed sample, besides the long-strip M2N precipitates, intermetallic phase-σ phase owning bct structure and lattice parameters of a=0.8800nm and c=0.4544nm were observed along grain boundaries and inside the grain.

scholarly journals Erosion Behavior of a Cu-Ti3AlC2 Cathode by Multi-Electric Arc

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2947 ◽  
Author(s):  
Xiaochen Huang ◽  
Yi Feng ◽  
Liang Li ◽  
Zongqun Li
Keyword(s):  
Electron Microscope ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Electric Arc ◽  
Raman Spectrometry ◽  
Cross Sectional ◽  
Laser Scanning Confocal Microscope ◽  
X Ray ◽  
Arc Erosion ◽  
Scanning Electron

A Cu-Ti3AlC2 cathode was eroded by arc discharging at 10 kV. The cross-sectional and horizontal morphologies of the eroded surface were recorded by a field emission scanning electron microscope (FE-SEM). The energy dispersive X-ray spectroscopy (EDS) and Raman spectrometry were carried out to analyze the compositions. The color-eroded surface was obtained by a three-dimensional laser scanning confocal microscope (3D LSCM). After 100 times of arc erosion, the Cu-Ti3AlC2 melted and resolidified. An eroded layer about 10 μm thick was formed, covered with pits, protrusions, and pores. The breakdown current was kept between 37 to 43 A. Under the action of a high temperature arc, Cu-Ti3AlC2 was oxidized to CuO and TiO2, accompanying the evaporation of the Al element.

SANDVIK HIGH-N

Alloy Digest ◽  
2019 ◽  
Vol 68 (8) ◽  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Austenitic Stainless Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Steel Company

Abstract Sandvik High-N is both N and Mo alloyed austenitic stainless steel. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion and wear resistance as well as forming and heat treating. Filing Code: SS-1308. Producer or source: Sandvik Steel Company.

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