Flexural Strength and Toughness of Austenitic Stainless Steel Reinforced High-Cr White Cast Iron Composite

Sallam, Hossam El-Din M.; El-Aziz, Kh. Abd; El-Raouf, H. Abd; El-Banna, El-Sayed M.

doi:10.1007/s11665-013-0666-0

Cited by 14 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Many engineering applications require materials with excellent resistance to both corrosion and wear [1][2][3][4][5][6][7]. High-Cr white cast irons have excellent wear and corrosion resistance and are inexpensive, and thus have been used for impact coal crusher hammers, pulverizer rings, chute liner, and hardfacing alloys of rolls or molds.…”

Section: Introductionmentioning

confidence: 99%

“…The carbides presented in the Fe-Cr-C system are (Fe,C) 3 C, (Fe,Cr) 7 C 3 , (Fe,Cr) 23 C 6 , and (Fe,Cr) 3 C 2 [2][3][4]. In many previous studies [4][5][6], the type and form of eutectic carbides change from M 3 C to M 7 C 3 with an increase in Cr content. In unalloyed or low-Cr white cast irons containing below 5 % Cr and up to 2 % C, the eutectic carbides of the M 3 C type in a continuous ledeburitic form (with hardness of HV = 1000) are present.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wear and Corrosion Behavior of High-Cr White Cast Iron Alloys in Different Corrosive Media

et al. 2015

Self Cite

View full text Add to dashboard Cite

This study aims to investigate the effect of Cr/ C ratio on wear and corrosion behavior of a group of highCr white cast iron (HCCI) alloys. Three different alloys of HCCI with different chemical compositions were tested against 3.5 % NaCl, 0.5 M H 2 SO 4 , and 0.5 M NaOH solutions as corrosive media. Electrochemical polarization technique has been used to determine the corrosion current density. The microstructure characteristics of HCCI alloys were analyzed by using optical microscope, SEM, EDS, and XRD. XRD analysis reveals that the microstructure of the HCCI alloys is composed of a network of chromiumrich carbides (M 7 C 3 ) in an austenitic matrix. The abrasive wear resistance of HCCI alloys was found to be rely on their chemical composition and microstructure. The corrosion resistance of the HCCI alloys strongly depends on the Cr/C ratio and the ratio of chromium content in the M 7 C 3 carbide to that in the matrix (CrM 7 C 3 /Matrix). The experimental results of this study showed that the alloy HCCI-2 with the lower Cr/C ratio exhibited the lowest abrasive wear loss while the alloy HCCI-1 with higher Cr/ C ratio exhibited the highest abrasive wear loss. On the other hand, the HCCI-1 alloy was the most corrosion resistant and revealed the lowest current density. In addition, the corrosion current density of all specimens is elevated in 0.5 M H 2 SO 4 solution in comparison with 3.5 wt% NaCl and 0.5 M NaOH solutions.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wear and Corrosion Behavior of High-Cr White Cast Iron Alloys in Different Corrosive Media

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Two verses from the Holy Quran more than 1400 years ago reported the preheating of reinforcement to obtain good properties in a bimetallic composite [25]; more details about this interesting story can be obtained in the references [24,25]. Recently, Sallam et al [26,27] suggested preheating the austenitic stainless steel reinforcements to about 700 • C to reduce temperature losses in the bimetallic casting process. Kang et al [28] and Norouzifard et al [18] also found that the preheating of reinforcements positively affects the final properties of copper composites.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Reinforcement Preheating Temperatures on Tribological Behavior of Advanced Quranic Metal-Matrix Composites (QMMC)

et al. 2022

View full text Add to dashboard Cite

The growing applications of iron/copper bimetallic composites in various industries are increasing. The relationship between the properties of these materials and manufacturing parameters should be well understood. This paper represents an experimental study to evaluate the effect of reinforcement (steel rod) preheating temperature on the mechanical properties (bond strength, microhardness, and wear resistance) of copper matrix composites (QMMC). In preparing the QMMC samples, the melted copper was poured on a steel rod that had been preheated to various temperatures, namely, room temperature, 600 °C, 800 °C, and 1200 °C. Properties of the QMMC (interface microstructure, interfacial bonding strength, microhardness, and wear) were investigated. The experimental results revealed that the best bond between the copper matrix and steel rod formed only in the composites prepared by preheating the steel rods with temperatures lower than the recrystallization temperature of steel (723 °C). This is because the oxide layer and shrinkage voids (due to the difference in shrinkage between the two metals) at the interface hinder atom diffusion and bond formation at higher temperatures. The microhardness test showed that preheating steel rod to 600 °C gives the highest value among all the samples. Furthermore, the QMMC’s wear behavior confirmed that the optimization of preheating temperature is 600 °C.

show abstract

“…Cr/C) is relatively high [2,8,9]. The higher chromium content changes the solidification pattern to a structure of M7C3 carbides surrounded by a matrix of austenite or its transformation products instead of M3C carbides that form the matrix [2,8,10,11,12]. Pearce [13] stated that in high chromium white irons the higher the chromium content the lower was the carbon content of the destabilized austenite, and then a softer lower carbon martensite was produced on a subsequent transformation.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Influence of Heat Treatment on the Structure and Properties of Alloyed Cast Iron with 15% Cr

Alogla¹

2020

International Journal of Engineering Research and Technology

View full text Add to dashboard Cite

In the current study, the influence of heat treatment on the microstructure, abrasive wear and mechanical properties of high chromium cast iron 3% Mo was investigated. After hardening heat treatment at of the alloy under investigation at 950 o C, the as cast austenitic structure transformed mostly to martensitic matrix containing fine precipitates of secondary carbides and surrounded by a network of M7C3 carbides. The holding time at the optimum austenitizing temperature for a specific alloy should be sufficient to ensure the complete precipitation of secondary carbide through all structure of specimen. Experimental results showed that the higher wear resistance and hardness was obtained after hardening at 950 o C for 120 minutes holding time, followed by air cooling. Increasing sliding wear distances at the load of 30N decreased the abrasive wear resistance of the investigated alloy after hardening and tempering heat treatments. Tempering heat treatment after air hardening of the investigated alloy at 400 o C gave little changes in both hardness and abrasive wear resistance, but tempering treatment at 500 o C resulted in marked improvements in these properties.

show abstract

Flexural Strength and Toughness of Austenitic Stainless Steel Reinforced High-Cr White Cast Iron Composite

Cited by 14 publications

References 16 publications

Wear and Corrosion Behavior of High-Cr White Cast Iron Alloys in Different Corrosive Media

Wear and Corrosion Behavior of High-Cr White Cast Iron Alloys in Different Corrosive Media

The Effect of Reinforcement Preheating Temperatures on Tribological Behavior of Advanced Quranic Metal-Matrix Composites (QMMC)

Experimental Study on the Influence of Heat Treatment on the Structure and Properties of Alloyed Cast Iron with 15% Cr

Contact Info

Product

Resources

About