Improvement of slurry erosion resistance of martensite/ferrite duplex stainless steel by hot rolling

2010 ◽  
Vol 16 (1) ◽  
pp. 13-19 ◽  
Author(s):  
Dong-Cherng Wen
Author(s):  
Renbo Xu ◽  
Lishan Cui ◽  
Yanjun Zheng ◽  
Siwei Zhang

The slurry erosion behaviors of pseudoelastic TiNi alloy were studied using the liquid/solid impingement system and compared with SUS 630 and 2Cr12NiMo1W1V alloy. The influences of erosion time and angle on erosion resistance of three materials were surveyed. The experimental results show that TiNi alloy has the highest erosion resistance among the three materials and SUS 630 stainless steel is more resistant than 2Cr12NiMoW1V alloy. The KQL-300 indentation tester was used to simulate the impact of particle on material surface during erosion process. The results show that the deformation mode of indention can be pile-up or sink-in and there is a good correlation between erosion resistance of material and its indentation deformation mode. The sink-in deformation mode indicates the higher resistance to erosion, and the pile-up deformation mode implies the lower erosion resistance.


2007 ◽  
Vol 202 (4-7) ◽  
pp. 993-997 ◽  
Author(s):  
Abel André C. Recco ◽  
Diana López ◽  
André F. Bevilacqua ◽  
Felipe da Silva ◽  
André P. Tschiptschin

2008 ◽  
Vol 74 (740) ◽  
pp. 605-610 ◽  
Author(s):  
Hiromi MOCHIZUKI ◽  
Motohiro YOKOTA ◽  
Kenichi SUGIYAMA ◽  
Morio KISIMOTO ◽  
Shuji HATTORI

2012 ◽  
Vol 710 ◽  
pp. 500-505 ◽  
Author(s):  
Hassan Jayaraj Amarendra ◽  
Pradeep Kalhan ◽  
Gajanan Prabhakar Chaudhari ◽  
Sameer Kumar Nath ◽  
Shravan Kumar

In the present work, effect of various heat treatments on slurry erosion behavior of 13Cr-4Ni martensitic stainless steel (MSS) at different impingement angles has been studied. The as-received cast bars of MSS were given various heat treatments. These heat treatments involved the austenitization of cast steel at temperatures of 950° C, 1000° C and 1050° C for different soaking durations of 2, 4 and 6 h at each temperature. This was followed by oil quenching then tempering for 1 h at a 600° C air cooled. Heat treated MSS samples were characterized for microstructure and mechanical properties viz. hardness, ductility (% elongation), tensile strength (UTS), and toughness. For wear characterization, slurry erosion tests were conducted at different impingement angles for as-received cast and heat treated samples. The heat treated MSS shows approximately 34% lesser weight loss as compared to as-received cast MSS. Increase in toughness of heat treated samples is found to be responsible for the improved slurry erosion resistance. Impingement angle close to 0° showed least wear loss.


2002 ◽  
Vol 73 (12) ◽  
pp. 531-538 ◽  
Author(s):  
Lode Duprez ◽  
Bruno C. De Cooman ◽  
Nuri Akdut

2013 ◽  
Vol 470 ◽  
pp. 15-18
Author(s):  
Hui Zhang ◽  
Yong Jun Zhang ◽  
Jing Tao Han ◽  
Yuan Dong ◽  
Jie Ren Hu

In hot rolling process of 2205 duplex stainless steel, it was found that bright line defects are mainly located at where is about distance of 200 mm from two sides of hot rolled plate. The forming reason of bright line defects is studied by means of metallographic microscope, scanning electron microscope (SEM) combined with energy dispersive spectrometer (EDS). It is concluded that the formation of bright line defects has associated with sticking and that the temperature reduction on the edge of hot rolling plate causes a high percentage of austenite phase which is network structure. In order to prevent or avoid the happening of the sticking phenomenon, it is necessary to uniformly distribute the oxide on the strip surface by controlled rolling process.


Wear ◽  
2013 ◽  
Vol 297 (1-2) ◽  
pp. 998-1005 ◽  
Author(s):  
J.D. Escobar ◽  
E. Velásquez ◽  
T.F.A. Santos ◽  
A.J. Ramirez ◽  
D. López

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