scholarly journals Effect of Heat Treatment on the Cavitation Erosion Performance of WC–12Co Coatings

Coatings ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 690 ◽  
Author(s):  
Du ◽  
Zhang ◽  
Zhang
Keyword(s):  
Heat Treatment ◽  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Steel Substrate ◽  
Nitrogen Atmosphere ◽  
Treatment Temperature ◽  
Heat Treated ◽  
Coating Microstructure ◽  
Erosion Test ◽  
Cavitation Erosion Resistance

WC–12Co coatings were deposited on 16Cr5Ni stainless steel substrate by high-velocity oxygen fuel (HVOF) process, followed by a one-hour heat-treatment in a tube furnace with a nitrogen atmosphere at 650, 800, 950, and 1100 °C, respectively. The influence of heat-treatment temperature on properties and cavitation erosion resistance of as-sprayed and heat-treated WC–12Co coatings was studied. The cavitation erosion test was carried out with ultrasonic cavitation erosion equipment. The porosity, microhardness, phase composition, as well as surface and cross-section morphology of the coatings were characterized. The coating heat-treated at 800 °C showed three typical cavitation erosion stages and exhibited the best cavitation erosion resistance. The cavitation erosion resistance was closely related to the coating microstructure and heat-treatment process. 3D optical microscopy was used to analyze the eroded surface of the coatings. The cavitation erosion mechanism of the coatings was discussed.

Effect of heat treatment on the cavitation erosion resistance of stainless steel

2017 ◽  
Vol 69 (4) ◽  
pp. 536-544 ◽  
Author(s):  
Kewen Peng ◽  
Can Kang ◽  
Gensheng Li ◽  
Kyuhei Matsuda ◽  
Hitoshi Soyama
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Cavitation Erosion Resistance

The Cavitation Behavior of Fe-Cr-C-Si-Ni Alloys

2006 ◽  
Vol 510-511 ◽  
pp. 274-277
Author(s):  
Ji Hui Kim ◽  
Kwang Su Na ◽  
Seon Jin Kim
Keyword(s):  
Work Hardening ◽  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Hardfacing Alloy ◽  
Ni Alloys ◽  
Ni Addition ◽  
Work Hardening Rate ◽  
Erosion Test ◽  
Cavitation Behavior ◽  
Cavitation Erosion Resistance

The cavitation erosion behavior of Fe-Cr-C-Si-xNi (x = 1, 2 and 3 wt.%) alloys were investigated for 50 hours using a 20 kHz vibratory cavitation erosion test equipment. 1 wt.% Ni added Fe-based hardfacing alloy showed excellent cavitation erosion resistance, comparable to the stellite 6. Above 1 wt.% Ni, however, the erosion resistance deteriorated quickly. It is conjectured that Ni addition above 1 wt.%, which has been shown to increase the stacking fault energy (SFE), resulted in reduction of the work hardening rate during the erosion test. Therefore, the enhanced cavitation erosion resistance of the 1 wt.% Ni alloy over the 2 and 3 wt.% Ni alloys could be explained in terms of the SFE, Ms temperature and work hardening.

Influence of Spatial Structures of 316L Stainless Steel on its Cavitation Erosion Resistance

2014 ◽  
Vol 225 ◽  
pp. 109-114
Author(s):  
Beata Śniegocka ◽  
Marek Szkodo ◽  
Jarosław Chmiel
Keyword(s):  
Stainless Steel ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Cavitation Erosion ◽  
316L Stainless Steel ◽  
Erosion Resistance ◽  
Spatial Structures ◽  
Erosion Test ◽  
Cavitation Erosion Resistance ◽  
Scanning Electron

Cavitation erosion performance of modified macroscopic internal structure 316L stainless steel was investigated. The samples processed by means of SLM method were subjected to cavitation erosion test. The scanning electron microscope Philips 30/ESEM was used to examine morphology of eroded surface.

Effect of Solution Treatment Temperature upon the Cavitation Erosion Resistance of X5CrNi18-10 Stainless Steel

2015 ◽  
Vol 1111 ◽  
pp. 116-120 ◽  
Author(s):  
Cornelia Laura Sălcianu ◽  
Ilare Bordeaşu ◽  
Ion Mitelea ◽  
Corneliu Marius Crăciunescu
Keyword(s):  
Stainless Steel ◽  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Solution Treatment ◽  
Treatment Temperature ◽  
Solution Treatment Temperature ◽  
Different Temperatures ◽  
Cavitation Erosion Resistance ◽  
Steel Heat ◽  
Made In

The specimens subjected to cavitation erosion were quenched from different temperatures (1000°C, 1050°C and 1100°C) but maintained the same time (25 min.) at the high temperature. The cavitation tests were made in the T2 device of the Timisoara Polytechnic University Cavitation Laboratory. This device respects integrally the recommendation of the ASTM G32-2010 Standard. The specimens microstructure and the area subjected to cavitation were examined with optic and SEM microcopies and hardness measurements. The differences arising on cavitation erosion resistance are explained through modifications of the crystalline grains dimensions, the chromium carbides proportion and some intermetallic phases not dissolved in austenite and of resistance to plastic deformation.Keywords: stainless steel, heat treatment, cavitation erosion

Gas Tungsten Arc Cladding of Titanium-Nickel Overlays onto the Carbon Steel and Stainless Steel for Cavitation Erosion Resistance

2011 ◽  
Vol 479 ◽  
pp. 81-89
Author(s):  
J.M. Chen ◽  
Ju Liang He ◽  
K.C. Chen ◽  
J.T. Chang
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Steel Substrate ◽  
304 Stainless Steel ◽  
Gas Tungsten Arc ◽  
Aisi 1045 ◽  
Gas Tungsten ◽  
Cavitation Erosion Resistance

Gas tungsten arc welding with the TiNi intermetallic filler material was used to weld overlays onto the SUS 304 stainless steel and AISI 1045 medium carbon steel. The composition, hardness and cavitation erosion resistance of overlays on both kinds of steel was compared. The microstructure analysis results show that the elements from substrate materials diluted the overlay and caused the formation of dendrite structures in overlays. The crystalline phases in overlays on SUS 304 are TiNi-B2, TiNi-B19’, TiNi3 and Ti3Ni4, while those in overlay on AISI 1045 are TiNi-B2 and TiNi3. The multiple phase structures, precipitation of hard carbides and oxides formed in the overlays increases the hardness of the overlays 3-fold over the TiNi filler rod and steel substrate. This significantly increases the cavitation erosion resistance of substrate steels. The corrosion resistant overlays also enhance the cavitation erosion corrosion resistance of substrates in corrosive 3.5 wt% NaCl solution.

Study on Cavitation Erosion Behavior of Monel Alloys in the Simulated Seawater Solution

2013 ◽  
Vol 631-632 ◽  
pp. 40-43 ◽  
Author(s):  
Chun Hua Zhang ◽  
Ning Yan ◽  
Yu Xi Hao ◽  
Chao Wang ◽  
Xu Bian ◽  
...  
Keyword(s):  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Damage Mechanism ◽  
Nacl Solution ◽  
Austenitic Phase ◽  
Erosion Test ◽  
Monel 400 ◽  
Cumulative Mass ◽  
Cavitation Erosion Resistance ◽  
Simulated Seawater

Cavitation erosion test of Monel-400 and MonelK-500 alloys was carried out in 3.5% NaCl solution using an ultrasonic induced cavitation facility. The microstructure, composition and mechanism of cavitation erosion were analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and induction balance, respectively. The results showed that Monel-400 alloy was single austenitic phase while MonelK-500 alloy contained Ni3Al intermetallics and its improvement in cavitation erosion resistance could be attributed to the higher hardness and density of the grain and twinning boundaries. In a series of 5h cavitation tests, the cumulative mass loss of Monel-400 alloy was 44.5 mg, which was 1.66 times than that of MonelK-500(26.8mg). No apparent incubation period was observed and the damage mechanism was plastic deformation and rupture.

Cavitation erosion resistance of a Co28Cr22Fe alloy.

2017 ◽  
Author(s):  
Juliana Barbarioli ◽  
André Tschiptschin ◽  
Cherlio Scandian ◽  
Manuelle Curbani Romero
Keyword(s):  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Cavitation Erosion Resistance
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