{"product_id":"l52348-thermal-model-for-welding-simulations","title":"L52348 Thermal Model for Welding Simulations","description":"\u003cp\u003eOver the past two decades, high strength, micro-alloyed, thermo-mechanically processed steels have been developed for modern pipeline constructions because of the advantages of lower weight, lower manufacturing cost, and ease of handling and transportation. Welding of these high strength steels poses a number of challenges due to their sensitivity to the welding parameters such as heat input, preheat temperature, etc. Two primary mechanical properties of the welds are yield strength and toughness. They are directly related to the final microstructures of the welds. Given the chemical composition of the welding consumables and the welding parameters, the microstructure is dependent on the thermal cycles that the weld metals are subjected to during the welding process. In addition, the base metal in the heat-affected zone (HAZ) of the weld also undergoes microstructure changes. These changes in the HAZ, like those in the weld metal, are dependent on the local thermal cycles too. In order to understand the complicated interactions of many factors, an accurate knowledge of the thermal cycles in the weld metal and its HAZ is necessary.\u003c\/p\u003e\n\n\u003cp\u003eThis report was for the DOT\/PRCI cosponsored project DTPH56-07-T-000005, “Development of Optimized Welding Solutions forX100 Line Pipe Steels.\"\u003c\/p\u003e\n\n\u003cp\u003eAs part of the project in Tasks 2, “Identification of Essential Variables\", and Task 3,“Fundamental Understanding of Welding Processes and Essential Variables\", an integrated thermal and microstructure model has been developed to simulate the heat transfer and microstructure changes in gas-metal-arc-welding (GMAW) girth welds. This report summarized the thermal analysis results produced by this integrated numerical model. The numerical model employed a two-dimensional, axis-symmetrical finite element procedure to simulate the transient heat transfer process and the microstructure evolution both in the weld metal and the heat affected zone (HAZ). It not only covered the traditional single wire GMAW process, but also has the capabilities to analyze new GMAW processes such as tandem wire and dual torch.\u003c\/p\u003e","brand":"PRCI Store","offers":[{"title":"Default Title","offer_id":44367606743118,"sku":"18125","price":100.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/prci-store.myshopify.com\/products\/l52348-thermal-model-for-welding-simulations","provider":"PRCI Store","version":"1.0","type":"link"}