Effect of Heat Treatment on Structure and Wear Resistance of High Chromium Cast Steel Containing Boron

2014 ◽  
Vol 21 (5) ◽  
pp. 532-538 ◽  
Author(s):  
Qi-hong Cen ◽  
Hi-bin Zhang ◽  
Han-guang Fu
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Steel ◽  
High Chromium

scholarly journals Effect of heat treatment on the microstructure, hardness and abrasive wear resistance of high chromium hardfacing

2013 ◽  
Vol 59 (No. 1) ◽  
pp. 23-28 ◽  
Author(s):  
R. Chotěborský
Keyword(s):  
Heat Treatment ◽  
Fracture Toughness ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Abrasive Wear Resistance ◽  
Air Cooling ◽  
High Chromium ◽  
Secondary Carbides ◽  
Cooling Conditions ◽  
Dendritic Austenite

The effect of destabilization heat treatment on the microstructure, hardness, fracture toughness and abrasive wear resistance of high chromium hardfacing was investigated. The results from the study shows that the hardness, frac­ture toughness and abrasive wear resistance are influenced by temperature of destabilization heat treatment and air and furnace cooling conditions, respectively. Destabilization treatment of materials by furnace cooling caused higher secondary carbides in the dendritic austenite whilst by air cooling it showed smaller particles of secondary carbide. Also, it was found that destabilization temperature at 1,000°C improves hardness compared with hardfacing after weld depositing. The study, however, indicated that Palmqvist fracture toughness method is a useful technique for measuring the fracture toughness of high chromium hardfacing compared to Vicker’s hardness method.    

scholarly journals Change in Wear Resistance of Iron Based High Carbon—High Chromium Hard Overlay by Heat Treatment

2010 ◽  
Vol 28 (1) ◽  
pp. 48-53
Author(s):  
Noriyuki SAKAKIBARA ◽  
Akira NOTOMI ◽  
Yoshimi KAMITO ◽  
Masahiko TANIGUCHI ◽  
Kazumasa NISHIO
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
High Carbon ◽  
High Chromium ◽  
Iron Based

scholarly journals Effect of post weld heat treatment on wear resistance of hot forging cast steel die coated with surfacing layer

2015 ◽  
Vol 21 ◽  
pp. 08003
Author(s):  
Wujiao Xu ◽  
Xin Ma ◽  
Nongjie Tang ◽  
Li Zhu ◽  
Wuhua Li ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Steel ◽  
Hot Forging ◽  
Post Weld Heat Treatment ◽  
Weld Heat

Optimizing heat treatment and wear resistance of high chromium cast irons using computational thermodynamics

Wear ◽  
2011 ◽  
Vol 271 (9-10) ◽  
pp. 1813-1818 ◽  
Author(s):  
E. Albertin ◽  
F. Beneduce ◽  
M. Matsumoto ◽  
I. Teixeira
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Irons ◽  
Computational Thermodynamics ◽  
High Chromium

Microstructure and Tribological Properties of a Material with Cementite Eutectic Applied for Metallurgical Rolls

2016 ◽  
Vol 682 ◽  
pp. 119-124
Author(s):  
Edyta Rożniata ◽  
Janusz Krawczyk ◽  
Robert Dąbrowski ◽  
Marcin Madej ◽  
Łukasz Frocisz ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Large Fraction ◽  
Cast Steel ◽  
Abrasive Wear Resistance ◽  
Cast State ◽  
Primary Austenite ◽  
Austenite Grain ◽  
Austenite Grains ◽  
Steel Rolls

Three prototype metallurgical rolls were produced on the basis of G200CrNiMo4-3-3 material. The method applied for the microstructure forming was different for each roll: the roll marked WOT – as cast state (without a modification and heat treatment); the metallurgical roll marked WMT – during its casting the FeCaSi deoxidizing was applied and then modification by a complex inoculant and argoning; the metallurgical roll marked WNT – subjected to a heat treatment (incomplete normalizing).The mentioned above differences in the technology of making rolls caused changes in their microstructure.The cementite eutectic and pearlitic matrix occurred in each roll. The main differences in the microstructure of cast steel rolls concerned a morphology of precipitates of hypereutectoid cementite. In the WOT roll cementite was mainly in the Widmannstӓtten system. Precipitates of hypereutectoid cementite in the WMT roll occurred along grain boundaries of primary austenite. A large fraction of spheroidal hypereutectoid cementite, precipitated in the whole volume of the primary austenite grain, appeared in the WNT roll. The microstructure influenced the rolls hardness and was equal 260 ÷ 350 HBW.Tribological investigations indicated decreasing the abrasive wear resistance with increasing the hypereutectoid cementite fraction within the primary austenite grains.

A Study on the Structures and Properties of B-Bearing Cast Steel for Wear Resistance

2010 ◽  
Vol 34-35 ◽  
pp. 878-882 ◽  
Author(s):  
Zhi Qiang Jiang ◽  
Xi Lan Feng ◽  
Xian Zhang Feng
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Impact Toughness ◽  
Grain Boundary ◽  
White Cast Iron ◽  
Cast Steel ◽  
Lath Martensite ◽  
Solidification Structure ◽  
High Chromium ◽  
Structures And Properties

The microstructures of B-bearing cast steel containing 0.8-1.2 wt.%B, 0.8-1.2 wt.%Cr, 1.0-1.5 wt.%Mn, 0.6-1.0 wt.%Si and 0.10-0.25 wt.%C have been characterized by means of optical OM, SEM, EPMA and XRD. The solidification structure of B-steel consists of pearlite, ferrite, martensite and boride (Fe2B), while the hardness is 1430-1480 HV. Borides distribute along the grain boundary in the form of eutectic. Fine lath martensite and eutectic Fe2B can be obtained by water quenching at 1223 K-1273 K. The hardness and impact toughness of the B-steel exceed 55 HRC and 150 kJ/m2, respectively. The abrasion resistance determined using a pin abrasion tester is obviously higher than that of the martensitic cast steel and nears to the high chromium white cast iron.

scholarly journals Research and Analysis of the Effect of Heat Treatment on Damping Properties of Ductile Iron

Open Physics ◽  
2019 ◽  
Vol 17 (1) ◽  
pp. 566-574
Author(s):  
Yu Zhang ◽  
Erjun Guo ◽  
Liping Wang ◽  
Yicheng Feng ◽  
Sicong Zhao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Iron ◽  
Ductile Iron ◽  
Cast Steel ◽  
High Stress ◽  
High Strength ◽  
Spheroidal Graphite ◽  
High Plasticity

Abstract With the continuous development of metal manufacturing technology, high-strength and high-hardness ductile iron materials have excellent comprehensive performance. Many performance indexes are comparable to those of alloy steels, and they have excellent casting properties. Many large-scale parts produced by cast steel are slowly being replaced by this material. Ductile iron is obtained by a spheroidizing treatment and inoculation to obtain spheroidal graphite. The mechanical properties of cast iron have been effectively improved, especially plasticity and toughness, and the strength obtained is higher than that of carbon steel. Ductile iron has the properties of iron and the properties of steel. It is a new type of engineering material with high plasticity, strength, corrosion resistance, and wear-resistance. Because of its excellent performance, it has been successfully used to cast parts with high-stress conditions, high strength, toughness and wear resistance. Due to the small splitting effect of ductile iron on the metal matrix, the stress concentration is effectively eliminated. Therefore, the matrix structure of ductile cast iron is changed by heat treatment, thereby improving its mechanical properties and the damping performance of the material itself. Through a heat treatment process experiment of ductile iron, the related process and technical measures of damping performance in the heat treatment production process are obtained.

Influence of Heat Treatment on the Microstructure of a High Chromium Steel Used for the Manufacture of Rolling Rolls

2010 ◽  
Vol 638-642 ◽  
pp. 3099-3104 ◽  
Author(s):  
Ines Fernández Pariente ◽  
J.Manuel Artimez ◽  
F.Javier Belzunce ◽  
Cristina Rodríguez
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
High Hardness ◽  
Chromium Steel ◽  
High Chromium ◽  
Austenite Content ◽  
Treatment Optimisation ◽  
Maintenance Time

The aim of this work was the study of the heat treatment optimisation of high chrome steels used for the manufacture of rolling rolls in order to obtain a final product with a high hardness and wear resistance and taking into account the very large dimensions typical of these products. The effect of modifying the maintenance temperature and time during the different phases of the heat treatment on the microstructure and hardness of this product was evaluated. The necessity of adjusting the temperature and maintenance time of the quenching heat treatment in order to obtain a martensitic/bainitic matrix with a low austenite content followed by two tempering treatments was demonstrated as the best way to obtain the optimal properties of the product for this particular application.

scholarly journals Primary Crystallization Studies and Abrasion Analysis of Cr-Ni-Mo Cast Steel

2015 ◽  
Vol 15 (4) ◽  
pp. 75-80
Author(s):  
A. Studnicki ◽  
M. Gromczyk ◽  
M. Kondracki ◽  
J. Suchoń ◽  
J. Szajnar
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Steel ◽  
Primary Crystallization ◽  
Cooling Time ◽  
Type Device ◽  
Pin On Disc ◽  
Wear Tests

Abstract The article shows results of studies of primary crystallization and wear resistance of Cr-Ni-Mo cast steel intended for work in corrosive and abrasive conditions. The studies of primary crystallization were conducted with use of TDA method and modified tester allowing measurement casting cooling time influence on the cooling and crystallization curves of studied alloys. After heat treatment of examined cast steel wear tests of the samples were conducted on pin-on-disc type device.

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