Objective
Steel composites with titanium carbide or titanium diboride as filler can be processed by HIP-ing or a filter casting route. With a manganese steel matrix and titanium boride, impact wear rates better than Nihard have been achieved. Even better results may be obtained with higher density titanium carbide or titanium boride materials.
The principle of producing a ductile cast iron/titanium carbide composite by a carbothermic reduction route was demonstrated. The applicability of this process to the production of large pieces, initially for wear testing, caused some problems.
Silicon carbide is an attractive filler for steel composites in terms of cost and the lack of porosity problems in comparison with titanium carbide and titanium diboride; however it is too reactive with molten steel. Both in situ and direct production systems have been explored and have shown some promise.
Forging has been shown to be a useful tool in the densification of composites, especially when low temperature production routes are used, leaving residual porosity.
A standardised impact/sliding wear test has been developed that enables materials to be ranked according to their resistance.
Impact testing has indicated that composite materials can be produced having ductility intermediate between cast iron and 13% manganese steel, although only by the fairly expensive HIP-rig production route.
Aluminium composites containing boron carbide (B4C) and titanium diboride were prepared by hot pressing and composites containing silicon carbide by a slush casting route. These composites all show better wear characteristics then the straight aluminium matrix material. However, whatever heat treatments are carried out, these we still an order of magnitude worse than a Nihard or manganese steel.
For the construction of equipment subjected to dry abrasion and impact (eg coal and ore chutes, excavation teeth, agricultural machinery), a composite metallic system is required which contains a hard, abrasion resistant filler, has good filler to matrix bonding and has sufficient toughness to resist impact damage.
Studies in this area have included:
development of a standardized impact sliding wear test;
preparation of aluminium composites containing boron carbide and titanium boride by hot pressing and composites containing silicon carbide by slush casting (these still have poorer wear characteristics that Nihard or manganese steel);
preparation of steel composites with titanium carbide or titanium boride as filler by hot isostatic pressing or filter casting (a manganese steel matrix with titanium boride gives better impact wear rates than Nihard);
demonstration of the production of a ductile cast iron titanium carbide composite by carbothermic reduction;
investigation of silicon carbide as a filler for steel composites;
study of forging for the densification of composites;
production of composite materials with ductilities between those of cast iron and 13% manganese steel.
A PRELIMINARY STUDY OF DRY ABRASIVE/IMPACT WEAR (E.G. COAL AND ORE CHUTES, EXCAVATION TEETH, AGRICULTURAL MACHINERY) HAS IDENTIFIED THE NEED FOR A COMPOSITE SYSTEM WHICH CONTAINS A HARD, ABRASION RESISTANT FILLER, HAS GOOD FILLER/MATRIX BONDING AND HAS SUFFICIENT TOUGHNESS TO RESIST IMPACT DAMAGE IN SERVICE.
THE OBJECTIVES OF THE PROJECT ARE TO FORMULATE COMPOSITE SYSTEMS OF WHICH THE PROPERTIES FALL INTO TWO CLASSES :
- WEAR-RESISTANCE APPROACHING THAT OF ALUMINA, BUT WITH DUCTILITY AND IMPACT STRENGTH NO POORER THAN THAT OF CAST IRONS,
- WEAR-RESISTANCE EQUAL TO OR EXCEEDING THAT OF CAST IRON BUT WITH DUCTILITY AND IMPACT STRENGTH INTERMEDIATE BETWEEN CAST IRON AND 13% MANGANESE STEEL.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology materials engineering composites
- natural sciences chemical sciences inorganic chemistry inorganic compounds
- natural sciences chemical sciences inorganic chemistry transition metals
- engineering and technology environmental engineering energy and fuels fossil energy coal
- natural sciences chemical sciences inorganic chemistry metalloids
You need to log in or register to use this function
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Data not available
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
DY13 8QR STOURPORT ON SEVERN
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.