Production of high alloyed chromium wear resistant castings

Code

L2-1622 (C) - included in ARIS records

Head

Period

1/1/1999 - 6/30/2000

Science

Engineering sciences and technologies (14)

Reseacher status

Researcher (14)
Junior expert or technical associate (0)

Education

Doctor's degree (10)
Master's degree (1)
Other (3)

Sex

Woman (3)
Man (11)

Status

Employed at RO and RRD (2)
No data on employment in RO (4)
Retired (6)
Deceased (2)

No. of publications

10–99 (3)
100–999 (11)

Projects / Programmes source: ARIS

source: ARIS

Production of high alloyed chromium wear resistant castings

Research activity

Code	Science	Field	Subfield
2.04.02	Engineering sciences and technologies	Materials science and technology	Metallic materials

Code	Science	Field
T450	Technological sciences	Metal technology, metallurgy, metal products

Keywords

Chrom-molibdenium cast iron, casting technology, FEM modeling, fracture toughness, abrasion resistant

Evaluation (rules)

source: COBISS

Evaluation of bibliographic research performance indicators according to ARIS methodology

Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases

source: WoS

source: Scopus

source: COBISS

Researchers (14)

no.	Code	Name and surname	Research area	Role	Period	No. of publicationsNo. of publications
1.	08236	Boris Arzenšek	Materials science and technology	Researcher	1999 - 2000	225
2.	06073	PhD Milan Bizjak	Materials science and technology	Researcher	2000	464
3.	17161	Roman Celin	Materials science and technology	Researcher	1999 - 2000	285
4.	08688	PhD Djordje Dobi	Materials science and technology	Researcher	1999 - 2000	24
5.	00061	PhD Blaženko Koroušić	Materials science and technology	Researcher	1999 - 2000	185
6.	11624	PhD Borut Kosec	Materials science and technology	Researcher	2000	978
7.	00050	PhD Ladislav Kosec	Materials science and technology	Researcher	2000	851
8.	07643	MSc Mija Renko	Materials science and technology	Researcher	1999 - 2000	17
9.	08001	PhD Franc Tehovnik	Materials science and technology	Researcher	1999 - 2000	324
10.	16199	Katarina Trbižan	Materials science and technology	Researcher	2000	69
11.	00738	PhD Milan Trbižan	Materials science and technology	Researcher	2000	329
12.	04238	PhD Boris Ule	Materials science and technology	Head	1999 - 2000	143
13.	05770	PhD Leopold Vehovar	Materials science and technology	Researcher	1999 - 2000	179
14.	09788	PhD Jelena Vojvodič Tuma	Civil engineering	Researcher	1999 - 2000	629

Organisations (2)

no.	Code	Research organisation	City	Registration number	No. of publicationsNo. of publications
1.	0206	Institute of Metals and Technology	Ljubljana	5051622000	5,982
2.	1555	University of Ljubljana, Faculty of Natural Sciences and Engeneering	Ljubljana	1627074	19,861

Abstract

he manufacture of large abrasion resistant castings from chrom-molibdenium white cast iron as for instance impellers of huge pumps for suction of water suspensions at river- and sea bed draining is very exacting. Such castings are susceptible to cracking in sand moulds even at relatively low cooling rate. Their manufacture could be therefore economically doubtful. Our research work will partly focus on finite element modeling (FEM) of solidification processes and appearance of internal stresses in such cast impeler (melt flow in gating system and in mould cavity, research of directional solidification and cooling, shrinkage and development of stresses and strains). The dilatometric data and the data from the Gleeble testing machine obtained at simulated cooling conditions will be used for such modeling. In order to optimize the technology of impeller production, the FEM results will be compared to the actual crack position on the already cast impellers. The second part of our research work will concentrate on the optimization of the chemical composition of high alloyed white cast iron (fitting of Cr/C proportion, addition of rare elements) in order to achieve minimal microstructural anisotropy and higher fracture toughness at unchanged wear resistance. Exacting fracture mechanics measurements and measurements of abrasive wear will be performed for this part of research work. The final aim of our project is to ensure the know-how for a superior-quality production of large impellers from high-alloyed white cast iron with a mass up to 11 tons.