The Effect of Type of Welding Sequence During Hardfacing Chromium Cast Iron for Erosion Resistance
| Autor: | Marek Gucwa, Robert Bęczkowski, T. Wyleciał, Jerzy Winczek |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Wear resistant alloys Hardfacing chemistry.chemical_element 02 engineering and technology Welding Welding sequence engineering.material Industrial and Manufacturing Engineering law.invention Chromium 0203 mechanical engineering Hardness law lcsh:TA401-492 Erosion resistance 020502 materials Metallurgy technology industry and agriculture Metals and Alloys respiratory system erosion 020303 mechanical engineering & transports 0205 materials engineering chemistry engineering Erosion lcsh:Materials of engineering and construction. Mechanics of materials Cast iron |
| Zdroj: | Archives of Foundry Engineering, Vol 17, Iss 3, Pp 51-54 (2017) |
| ISSN: | 2299-2944 |
| DOI: | 10.1515/afe-2017-0089 |
| Popis: | The paper presents the capabilities of welding techniques to creating properties of wear resistant high chromium cast iron alloy. The use of the right kind of welding sequence allows you to change the structure and properties of the obtained welds. Tests were conducted for one type of additive material in the form of self shielded core wire. In order to determine the effect of the type of welding sequence on the properties of welds performed welding using string bead and weave bead. The resulting weld was tested on hardness and research structure in an optical microscope. In the following studies have been made erosive tests wear of made hardfacing. String beads gave structure rich in carbides and harder about 270 HV of the weld with weave bead. Also, wear resistance was nearly twice as better for welds made with string beads. In the experiment a decisive role in the resistance to wear plays a high hardness of the deposit and the presence of carbides in its structure. Changes in the basic parameters of the deposition process allows for the formation of structure and properties of hardfacing welds in a wide range. |
| Databáze: | OpenAIRE |
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