PSI - Issue 17

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 17 (2019) 509–513

ICSI 2019 The 3rd International Conference on Structural Integrity Austenitic cast iron resistant against the abrasive material degradation Berta Igor* a , Pokusová Marcela a a Slovak University of Technology, Faculty of Mechanical Engineering, Institute of technologies and materials, Námestie slobody 17, 812 31 Bratislava, Slovak republic , igor.berta@stuba.sk ICSI 2019 The 3rd International Conference on Structural Integrity Austenitic cast iron resistant against the abrasive material degradation Berta Igor* a , Pokusová Marcela a a Slovak University of Technology, Faculty of Mechanic l Engineering, Institute of technologies and materials, Námestie slobody 17, 812 31 Bratislava, Slovak republic , igor.berta@stuba.sk In producing processes there are components which are exposed to a high degree of abrasion. This paper presents the criteria for the selecting chemical composition for white chromium cast iron that has the high abrasion resistance and increased fracture resistance. The results of experiments are focused on the selection of the alloying element combination that can produce a predominantly austenitic matrix with a big portion of the carbide components. The paper brings information about developed compositions of chromium cast irons having high resistance against fracture and abrasion in as-cast state and also the basic information on the producing method and service properties of these cast irons successfully used in practice. In produci processes there are components which are exposed to a hig degr e of abrasion. This p per presents the criteria for the selecting chemical composition for white chromium cast iron that has the high abrasion resista ce a d increased fracture resistance. The results of experiments are focused on the selection of th alloying element combination that can produce a predominantly austenitic atrix with a big portion of the carbide components. The paper brings inform tion about developed compositions of chromium cast ir ns having high resistance against fracture and abrasion in as-cast state and also the basic information on the producing method and service properties of these cast irons successfully used in practice. Abstract Abstract

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

Keywords: abrasion; cast iron; austenitic Keywords: abrasion; cast iron; austenitic

1. Introduction 1. Introduction

The operation of machines and structures can lead to various causes and conditions of degradation material mechanisms, like corrosion, brittleness and steel aging, vibrations induced failures, and others. Some of them are difficult to predict at the design process (Garan 2019, Chmelko 2016). Demands on high abrasion resistance are be often required e. g. in building industries (earthmoving machinery), in mixing granulates and bulk mixtures or in compacting of materials. Some material used for raw food processing can also have high abrasiveness - Fig. 1 shows a knife image used for grinding of cocoa beans. After 3 weeks of The operation of machines and structures can lead to various causes and conditions of degradation material mechanisms, like corrosion, brittleness and steel aging, vibrations induced failures, and others. Some of them are difficult to predict at the design process (Garan 2019, Chmelko 2016). Demands on high abrasion resistance are be often required e. g. in building industries (earthmoving machinery), in mixing granulates and bulk mixtures or in compacting of materials. Some material used for raw food processing can also have high abrasiveness - Fig. 1 shows a knife image used for grinding of cocoa beans. After 3 weeks of

* Corresponding author. Tel.: +421-57296851 E-mail address: igor.berta@stuba.sk * Corresponding author. Tel.: +421-57296851 E-mail address: igor.berta@stuba.sk

2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

2452-3216  2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 10.1016/j.prostr.2019.08.067