Experimental simulation of dissimilar weld metal of high manganese steels by arc melting technique
| Autor: | Sven Jüttner, Manuela Zinke, Daniel Keil, Benjamin Wittig |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Austenite
Materials science Mechanical Engineering Gas tungsten arc welding Metallurgy Metals and Alloys chemistry.chemical_element 02 engineering and technology Welding Manganese Microstructure 020501 mining & metallurgy law.invention 0205 materials engineering chemistry Mechanics of Materials law Ferrite (iron) Martensite Metallography |
| Zdroj: | Welding in the World. 61:249-256 |
| ISSN: | 1878-6669 0043-2288 |
| DOI: | 10.1007/s40194-017-0427-z |
| Popis: | This paper presents an arc melting technique that allows simulating dissimilar weld metal of high manganese steels with ferritic and martensitic steel grades. The objective of this initial study was to conceive a melting technique that produces dissimilar metal welds using a GTA process in a water-cooled copper crucible under welding adequate cooling conditions and with homogeneous mixing. For this purpose, the sample size, the shape of the crucible, and the melting parameters have been optimized. Using the developed arc melting technique avoids the time-consuming and expensive process of iteratively producing actual welds. It is demonstrated that the dissimilar weld metal microstructure and properties can be easily evaluated for a wide range of dilutions. For an industrially relevant material combination of an austenitic high manganese steel and a ferritic low-alloy steel, the effect of dilution on the weld metal microstructure, the hardness, and the measured ferrite number are shown utilizing the developed arc melting technique. Determining the effect of dilution for a wide range material combination is the basis for the development of a constitutional diagram and will be part of a subsequent paper. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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