Microstructural Comparison of Spray-Formed and Conventionally Cast 2.5C–19Cr High-Chromium White Iron

Lotta, Juho; Hannula, Simo‐Pekka

doi:10.1007/s13632-015-0209-1

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…For the production of the working surface the complex alloyed white cast irons are most widely used with the following chemical composition [2][3][4][5][6][7][8][9][10][11][12] (wt.%): С = 1.6-3.4%; Si = 0.2-1.0%; Mn = 0.5-5.2%; Cr = 11.0-30.0%; Mo = 0.5-2.5%; S ≤ 0.08%; P ≤ 0.1%; Cu ≤ 1.5%; V ≤ 0.35%; Ti ≤ 0.35%. Such irons are characterized with high hardness and wear resistance but have low toughness [8; 9].…”

Section: Introductionmentioning

confidence: 99%

Influence of technological factors on formation process of bimetallic castings

Aftandiliants

Gnyloskurenko

Meniailo

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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The analysis of the modern state of wear-resistant metallic material production showed that one of the promising directions for improving their quality is the use of bimetallic steel-cast iron castings, which have a complex of properties differentiated over the volume and surface of the products. However, the problem of obtaining a high-quality joint of the steel base and the working cast iron layers is not completely solved at present. So, the research aims to determine the quality criterion of a good diffusion joint and to study the selected technological factor influence on the formation process of bimetallic castings using the developed mathematical model. The paper examines the effect of the steel base temperature at liquid cast iron pouring over it, the temperature of pouring cast iron, as well as the ratio of liquid cast iron mass to the unit surface of the steel base on the contact surface temperature as selected quality criteria, and the structure of the transition diffusion layer of bimetallic castings. It was determined that a high-quality joint is realized when this temperature is larger than the solidus temperature of the cast iron. Moreover, the results of the mathematical model application showed maximum contribution of the liquid cast iron mass/steel unit surface ratio, less effect of the pouring iron temperature and minimum influence of the solidified steel base temperature onto the quality criteria. The metallographic analysis established the diffusion joint formation in the transition steel-cast iron layer consisting of pearlite on the side of the steel base and without the carbide matrix area on the side of the working iron layer. The results obtained are of great importance for the designing bimetallic machine parts worked under intensive wear conditions.

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Section: Introductionmentioning

confidence: 99%

Influence of technological factors on formation process of bimetallic castings

Aftandiliants

Gnyloskurenko

Meniailo

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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Spray Forming of Steels

Lotta

Spiegelhauer

Hannula

2017

Metal Sprays and Spray Deposition

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An Overview on Types of White Cast Irons and High Chromium White Cast Irons

Ngqase

Pan

2020

J. Phys.: Conf. Ser.

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Crushing and grinding are widely used in mining, mineral processing, cement making, and coal power generation. The mechanical components that contact with materials being processed are working under the conditions of high abrasion and impact. How to reduce the wearing damages and prevent from the cracking failure of the mechanical parts is one of the crucial challenges facing the operations of many industries, involved crushing and grinding processes. Whit cast irons, and specifically high chromium white cast irons, have been developed and deployed worldwide for making mechanical components of crushing and grinding machines due to the combination of high wear resistance and good mechanical strength. The paper is aimed to give an overview on the white cast iron alloys, and particularly high chromium white cast iron alloys, including their classifications, their standard specifications in USA, China and Australia, their main usages and the new developments.

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Microstructural Comparison of Spray-Formed and Conventionally Cast 2.5C–19Cr High-Chromium White Iron

Cited by 6 publications

References 9 publications

Influence of technological factors on formation process of bimetallic castings

Influence of technological factors on formation process of bimetallic castings

Spray Forming of Steels

An Overview on Types of White Cast Irons and High Chromium White Cast Irons

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