scholarly journals Corrosion Behavior of FeB-30 wt.% Al0.25FeNiCoCr Cermet Coating in Liquid Zinc

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 622
Author(s):  
Xiaolong Xie ◽  
Bingbing Yin ◽  
Fucheng Yin ◽  
Xuemei Ouyang
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
316L Stainless Steel ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Liquid Zinc ◽  
Cermet Coating ◽  
Abrasion Wear ◽  
Better Than

The corrosion of galvanizing equipment parts by liquid zinc is an urgent problem that needs solving. In this work, FeB-30 wt.% Al0.25FeNiCoCr cermet coating was deposited on the surface of 316L stainless steel by AC-HVAF to protect galvanizing equipment parts from corrosion by liquid zinc. The microstructures and phase compositions of powders and the coating were determined by SEM, EDS, and XRD in detail. Additionally, the microhardness, fracture toughness, abrasion wear resistance, and corrosion resistance of the coating to liquid zinc were also studied. The results indicate that the abrasion wear resistance and corrosion resistance of the coating are much better than that of the 316L stainless steel substrate. The failure of the coating in liquid zinc is mainly due to the penetration of liquid zinc into macro-cracks, which causes the coating to peel off.

scholarly journals The Effect of Powder Composition on the Microstructure and Corrosion Resistance of Laser Cladding 60NiTi Alloy Coatings on SS 316L

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1104
Author(s):  
Zexu Du ◽  
Zhengfei Hu ◽  
Yuqiang Feng ◽  
Fan Mo
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Laser Cladding ◽  
316L Stainless Steel ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Eutectic Structure ◽  
Nacl Solution ◽  
Powder Composition ◽  
Ni Powder

Two kinds of 60NiTi powders were prepared by pure Ni mixed with Ti powders, and 55NiTi alloy powder with pure Ni powder and both the powders were fully mixed by alcohol ball milling. Two kinds of coatings (denoted as 60Ni-40Ti and 55NiTi-5Ni) were prepared on a 316L stainless steel substrate by laser cladding. The microstructure, microhardness and electrochemical behavior of the prepared coatings were investigated extensively. The results show that 55NiTi-5Ni has a typical dendritic eutectic structure, but 60Ni-40Ti tends to form a eutectic network structure. The main phases in both coatings are (Ni, Fe)Ti and (Ni, Fe)3Ti; however, the (Ni, Fe)Ti phase is dominant in 55NiTi-5Ni, but the (Ni, Fe)3Ti phase is more prevalent in 60Ni-40Ti. The microhardness was significantly improved with the 316L stainless steel substrate, and the microhardness of 55NiTi-5Ni is slightly higher than 60Ni-40Ti. The corrosion resistance of the two coatings in 3.5 wt% NaCl solution also leads to significant improvements compared with the substrate, and the corrosion resistance of 55NiTi-5Ni was also increased. These different behaviors and characteristics might be related to the different microstructures. Uniform and fine eutectic structure in 55NiTi-5Ni coating lead to better performance, which is also conducive to the formation of the dense oxide film to improve corrosion resistance.

CRUCIBLE CPM S30V

Alloy Digest ◽  
2003 ◽  
Vol 52 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Martensitic Stainless Steel ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Better Than

Abstract Crucible CPM S30V is a martensitic stainless steel designed with a combination of toughness, wear resistance, and corrosion resistance equal to or better than 440C. This datasheet provides information on composition, physical properties, microstructure, hardness, and elasticity as well as fracture toughness. It also includes information on corrosion and wear resistance as well as heat treating and machining. Filing Code: SS-891. Producer or source: Crucible Service Centers.

scholarly journals Properties of a Plasma-Nitrided Coating and a CrNx Coating on the Stainless Steel Bipolar Plate of PEMFC

Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 183 ◽  
Author(s):  
Meiling Xu ◽  
Shumei Kang ◽  
Jinlin Lu ◽  
Xinyong Yan ◽  
Tingting Chen ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
316L Stainless Steel ◽  
High Efficiency ◽  
Electrochemical Impedance ◽  
Bipolar Plate ◽  
Working Environment ◽  
Stainless Steel Surface ◽  
Bipolar Plates ◽  
Better Than

PEMFC are considered to be the most promising for automotive energy because of their good working effect, low temperature, high efficiency, and zero pollution. Stainless steel as a PEMFC bipolar plate has unparalleled advantages in strength, cost, and processability, but it is easy to corrode in a PEMFC working environment. In order to improve the corrosion resistance, the surface modification of 316L stainless steel is a feasible solution for PEMFC bipolar plates. In the present study, the plasma-nitrided coating and CrNx coating were prepared by the plasma-enhanced balanced magnetron sputtering technology on the 316L stainless steel surface. The microstructures, phase compositions, and corrosion resistance behavior of the coatings were investigated. The corrosion behavior of the prepared plasma-nitrided coating and CrNx coating was investigated by potentiodynamic polarization, potentiostatic polarization, and electrochemical impedance spectroscopy (EIS) in both cathodic and anodic environments. The experimental results show that corrosion resistance of the CrNx coating was better than the plasma-nitrided coating. It was indicated that the technology process of nitriding first and then depositing Cr was better than nitriding only.

Microstructure, hardness and wear resistance of reactive sputtered Mo–O–N films on stainless steel substrate

2015 ◽  
Vol 280 ◽  
pp. 1-7 ◽  
Author(s):  
Y. Sutou ◽  
S. Komiyama ◽  
M. Sonobe ◽  
D. Ando ◽  
J. Koike ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Stainless Steel Substrate ◽  
Steel Substrate

Tribological Properties of Titanium Surface Alloyed 316L Stainless Steel

2010 ◽  
Vol 148-149 ◽  
pp. 740-743
Author(s):  
Wei Yan Liu ◽  
Xiu Yan Li ◽  
He Feng Wang ◽  
Rui Feng ◽  
Bin Tang
Keyword(s):  
Stainless Steel ◽  
Titanium Surface ◽  
316L Stainless Steel ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Alloyed Layer ◽  
Wear Performance ◽  
Surface Modified ◽  
Plasma Surface Alloying Technique ◽  
Plasma Surface Alloying

Titanium surface alloyed layer was fabricated on 316L stainless steel substrate at 1000°C by means of the plasma surface alloying technique. The content of element titanium in the surface alloyed layer shows gradually tapering from surface to the inside of the substrate and it means an excellent metallurgical binding between the surface modified layer and 316L stainless steel substrate. The hardness of the titanium surface alloyed Layer is 1305HK0.5, which is much larger than that of the 316L stainless steel substrate. The wear performance of the treated and untreated 316L stainless steel was studied using a ball-on-disc sliding wear machine. Although the titanium surface alloyed layer does not show a friction-reducing effect, it improves the wear resistance of 316L stainless steel significantly and its wear rate is only one-fifteenth of that for untreated 316L stainless steel.

scholarly journals The Effects of Substrate Bias on the Properties of HfC Coatings Deposited by RF Magnetron Sputtering

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 963
Author(s):  
Di Pei ◽  
Li Wang ◽  
Ming-hui Ding ◽  
Zhao-nan Hu ◽  
Jun-yu Zhao ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Bias Voltage ◽  
316L Stainless Steel ◽  
Steel Substrate ◽  
Rf Magnetron Sputtering ◽  
Substrate Bias ◽  
Stainless Steel 316L ◽  
Transmission Electron

In the paper, by using radio frequency (RF) magnetron sputter technology, the HfC coating grew on a 316L stainless steel substrate in an Ar atmosphere at various substrate bias voltages from 0 to −200 V. From the X-ray diffraction (XRD) and transmission electron microscopy (TEM) experiments, the HfC coatings were well crystallized and (111) preferential growth had been successfully obtained by controlling bias voltage at −200 V. Nanoindentation experimental results for the prepared HfC coatings indicated that they possessed the maximum nanohardness due to the formation of the (111) orientation. The results of electrochemical measurements displayed that 316L stainless steel (316L) coated with the HfC coatings had better corrosion resistance than bare 316L. With the bias voltage increasing to −200 V, adhesion of the 316L substrate with the HfC coating could be greatly improved, as well as corrosion resistance. The antithrombogenicity of the HfC coatings was identified by platelet adhesive and hemolytic ratio assay in vitro. It was shown that the hemocompatibility of coated 316L had been improved greatly compared with bare 316L and the HfC coatings possessed better antithrombogenicity with the bias voltage elevating above −150 V.

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