HODIS, Zdeněk, Vít JAN, Jiří SOPOUŠEK and Rudolf FORET. Analysis of realistic heterogeneous welds of heat resistant steels by means of experimental and computational techniques. In CALPHAD XXXVIII (May 17-22, 2009). 2009.
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Basic information
Original name Analysis of realistic heterogeneous welds of heat resistant steels by means of experimental and computational techniques
Name in Czech Analýza reálných heterogenních svarů žáropevných ocelí pomocí experimentálních a výpočtových technik
Name (in English) Analysis of realistic heterogeneous welds of heat resistant steels by means of experimental and computational techniques
Authors HODIS, Zdeněk (203 Czech Republic, guarantor), Vít JAN (203 Czech Republic), Jiří SOPOUŠEK (203 Czech Republic, belonging to the institution) and Rudolf FORET (203 Czech Republic).
Edition CALPHAD XXXVIII (May 17-22, 2009), 2009.
Other information
Original language Czech
Type of outcome Conference abstract
Field of Study 10403 Physical chemistry
Country of publisher Slovakia
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/09:00051150
Organization unit Faculty of Science
Keywords (in Czech) CALPHAD; svar; fázové diagramy
Keywords in English CALPHAD; weld; phase diagram
Tags CALPHAD, IK, Phase diagram, rivok, weld
Tags International impact
Changed by Changed by: prof. RNDr. Jiří Sopoušek, CSc., učo 2405. Changed: 7/2/2012 09:10.
Abstract
Two alternative composite welds were manufactured by GTAW technology according to standard technological procedures. The welds connected two base materials with different chromium content using high chromium intermediate layer and low alloyed main weld consumable material. Experimental analysis was carried out on weld samples after PWHT and on samples annealed up to 1000 hours at 650stC. Microhardness and chemical profiles of interstitial and substitutional elements across all weld interfaces in the samples were measured. Phase diagrams, activity values for diffusing elemnts for all materials used in the welds were calculated by ThermoCalc using Steel16 database. Phase and chemical profiles for all interfaces in the welds after heat treatment and annealing were also calculated using DICTRA and Steel16 and Dif databases. Non-linear starting chemical profiles were used for the kinetic simulations to modell the mixing during realistic welding. The results of the simulations agree well with all experimental results.
Abstract (in English)
Two alternative composite welds were manufactured by GTAW technology according to standard technological procedures. The welds connected two base materials with different chromium content using high chromium intermediate layer and low alloyed main weld consumable material. Experimental analysis was carried out on weld samples after PWHT and on samples annealed up to 1000 hours at 650stC. Microhardness and chemical profiles of interstitial and substitutional elements across all weld interfaces in the samples were measured. Phase diagrams, activity values for diffusing elemnts for all materials used in the welds were calculated by ThermoCalc using Steel16 database. Phase and chemical profiles for all interfaces in the welds after heat treatment and annealing were also calculated using DICTRA and Steel16 and Dif databases. Non-linear starting chemical profiles were used for the kinetic simulations to modell the mixing during realistic welding. The results of the simulations agree well with all experimental results.
Links
MSM0021622410, plan (intention)Name: Fyzikální a chemické vlastnosti pokročilých materiálů a struktur
Investor: Ministry of Education, Youth and Sports of the CR, Physical and chemical properties of advanced materials and structures
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