Torbjörn Carlberg

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Background

Ph D, Professor of Material Engineering
I recieved my PhD at the Royl Institute of Technology, KTH, in 1979 in the field of casting of metals, and after a post doc at MIT, I established a research group at KTH working with crystal growth of semiconductor materials. In 1991 I moved to Sundsvall and since 2000 I am professor in materials engineering.

Area of interest

My research has basically been focussed on the manufacturing of materials from liquid to solid involving processes such as casting, crystal growth and welding, but in later years an expansion towards the development of materials for applications in forest industry processes has evolved. An important part of the reseach has been in the field of microgravity with experiments performed in space to study effects of reduced gravity on the solidification process.

Current research

Currently projects are running in the fields of DC-casting of aluminium alloys, development of wood chipping tools and refing of silicon for solar cells involving microgravity experiments in the space station, ISS.

Publications

Articles in journals

Bayat, N. & Carlberg, T. (2017). Influence of Heat Treatment on the Surface Structure of 6082 Al Alloys. Metallurgical and Materials Transactions. A, vol. 48A: 10, pp. 5085-5094.  

Bayat, N. , Carlberg, T. & Cieslar, M. (2017). In-Situ Study of Phase Transformations during Homogenization of 6005 and 6082 Al Alloys. Journal of Alloys and Compounds, vol. 725, pp. 504-509.  

Saleem, J. , Majid, A. , Malik, A. W. , Bertilsson, K. & Carlberg, T. (2016). An efficient method of spot welding Aluminium alloys with induction preheating. Journal of Electrical Systems, vol. 12: 4, pp. 817-825.    

Carlberg, T. , Bayat, N. & Erdegren, M. (2015). Surface Segregation and Surface Defect Formation During Aluminum Billet Casting. Transactions of the Indian Institute of Metals, vol. 68: 6, pp. 1065-1069.  

Carlberg, T. & Jarfors, A. E. W. (2014). On Vertical Drag Defects Formation During Direct Chill (DC) Casting of Aluminum Billets. Metallurgical and materials transactions. B, process metallurgy and materials processing science, vol. 45: 1, pp. 175-181.  

Bayat, N. & Carlberg, T. (2014). Surface structure formation in direct chill (DC) casting of al alloys. JOM, vol. 66: 5, pp. 700-710.  

Saleem, J. , Majid, A. , Bertilsson, K. & Carlberg, T. (2013). 3 Dimensional Finite Element Simulation of Seam Welding Process. Elektronika Ir Elektrotechnika, vol. 19: 8, pp. 73-78.  

Razaz, G. & Carlberg, T. (2013). Casting practices influencing inclusion distributions in billets. Light Metals, , pp. 987-991.

Hellström, L. , Carlberg, T. , Engstrand, P. , Gradin, P. & Gregersen, Ø. (2012). Evaluation Of Collimated Chipping Technology For Reducing Energy Consumption In Mechanical Pulping. Journal of Science & Technology for Forest Products and Processes, vol. 2: 3, pp. 6-9.

Saleem, J. , Majid, A. , Bertilsson, K. , Carlberg, T. & Nazar Ul Islam, M. (2012). Nugget Formation During Resistance Spot Welding Using Finite Element Model. World Academy of Science, Engineering and Technology, vol. 67    

Hellström, L. , Gradin, P. , Gulliksson, M. & Carlberg, T. (2011). A laboratory wood chipper for chipping under realistic conditions. Experimental mechanics, vol. 51: 8, pp. 1309-1316.  

Jaradeh, M. & Carlberg, T. (2011). Method Developed for Quantitative Analysis of Inclusions in Solidified Aluminum Ingots. Metallurgical and materials transactions. B, process metallurgy and materials processing science, vol. 42: 1, pp. 121-132.  

Ullah, M. w. & Carlberg, T. (2011). Silicon crystal morphologies during solidification refining from Al-Si melts. Journal of Crystal Growth, vol. 318: 1, pp. 212-218.  

Jaradeh, M. M. R. & Carlberg, T. (2011). Solidification Studies of 3003 Aluminium Alloys with Cu and Zr Additions. Journal of Materials Science & Technology, vol. 27: 7, pp. 615-627.  

Hummelgård, M. , Zhang, R. , Carlberg, T. , Vengust, D. , Dvorsek, D. , Mihailovic, D. & Olin, H. (2010). Nanowire Transformation and Annealing by Joule Heating. Nanotechnology, vol. 21: 16, pp. 165704-165704.  

Hellström, L. M. , Gradin, P. A. & Carlberg, T. (2008). A Method for Experimental Investigation of the Wood Chipping Process. Nordic Pulp & Paper Research Journal, vol. 23: 3, pp. 339-342.    

Jaradeh, M. & Carlberg, T. (2007). Analysis of solidification in a Bridgman furnace as a simulation of DC casting of aluminium alloy slabs. Materials Science and Technology, vol. 23: 4, pp. 475-482.

Jaradeh, M. & Carlberg, T. (2007). Differential thermal analysis and differential scanning calorimetry studies of aluminum 3003 alloys with Zn and Cu additions. Metallurgical and Materials Transactions. A, vol. 38: 9, pp. 2138-2147.  

Jaradeh, M. & Carlberg, T. (2007). DTA and DSC Studies of Aluminium 3003 Alloys with Zn and Cu Additions. Metallurgical and Materials Transactions. A, vol. 38A, pp. 2138-2147.  

Carlberg, T. , Jaradeh, M. & Kamgou Kamga, H. (2006). Solidification Studies of Automotive Heat Exchanger Materials. JOM, vol. 58: 11, pp. 56-61.  

Jaradeh, M. & Carlberg, T. (2005). Effect of titanium on the microstructure of DC-cast aluminium alloys. Materials Science & Engineering, vol. 413, pp. 277-282.  

Carlberg, T. (2005). Experimental Study of Radial Segregation Caused by Weak Convection. Microgravity, science and technology, vol. 15: 1, pp. 35-39.  

Do-Quang, M. , Amberg, G. & Carlberg, T. (2004). Three-dimensional Modeling of Radial Segregation due to Weak Convection. Journal of Crystal Growth, vol. 269: 2-4, pp. 454-463.

Winkler, C. , Amberg, G. & Carlberg, T. (2000). Radial Segregation due to Weak Convection in a Floating Zone. Journal of Crystal Growth, vol. 210: 4, pp. 573-586.  

Bayat, N. , Carlberg, T. & Cieslar, M. (). In-Situ Study of Phase Transformations during Homogenization of 6060 and 6063 Al Alloys. ,

Articles, reviews/surveys

Jaradeh, M. M. & Carlberg, T. (2012). Analysis of Distribution of Nonmetallic Inclusions in Aluminum DC-Cast Billets and Slabs. Metallurgical and materials transactions. B, process metallurgy and materials processing science, vol. 43: 1, pp. 82-91.  

Carlberg, T. (2006). A Review of Radial Segregation in Crystal Growth during Microgravity. Progress in crystal growth and characterization of materials, vol. 52: 3, pp. 213-222.  

Chapters in books

Erdegren, M. & Carlberg, T. (2011). Surface Defects Structures on Direct Chill Cast 6xxx Aluminium Billets. In Light Metals 2011. John Wiley & Sons. pp. 675-680.  

Conference papers

Engstrand, P. , Gradin, P. , Hellström, L. , Carlberg, T. , Sandström, P. , Liden, J. , Söderberg, M. & Mats, E. (2016). Improved refining energy efficiency in thermo-mechanical pulping by means of collimated wood chipping – from solid mechanics to full scale evaluation. In PaperWeek Canada 2016 Conference February 1 to 5, 2016, Montreal : Technical Track Program.

Razaz, G. & Carlberg, T. (2016). Study of manganese dissolution in aluminum melts. In TMS Light Metals.. pp. 731--736.

Bayat, N. & Carlberg, T. (2016). Surface formation in direct chill (DC) casting of 6082 aluminium alloys. In IOP Conference Series : Materials Science and Engineering.  

Bayat, N. & Carlberg, T. (2015). On Liquid Metal Wetting of Casting Rings for DC Casting. In TMS Light Metals. Warrendale : (TMS Light Metals). pp. 859--864.  

Razaz, G. & Carlberg, T. (2014). Segregation during metal sampling. In Materials science forum.. pp. 83--88.  

Jaradeh, M. & Carlberg, T. (2012). Effect of refiner addition level on zirconium-containing aluminium alloys. In IOP Conference Series: Materials Science and Engineering.. pp. Art. no. 012008-  

Erdegren, M. , Ullah, M. W. & Carlberg, T. (2012). Simulation of surface solidification in direct-chill 6xxx aluminum billets. In IOP Conference Series : Materials Science and Engineering. (IOP Conference Series : Materials Science and Engineering). pp. Art. no. 012013-  

Hellström, L. , Carlberg, T. , Engstrand, P. , Gradin, P. & Gregersen, Ø. (2011). Collimated chipping technology in order to reduce the energy consumption in mechanical pulping. In Proceeding for International Mechanical Pulping Conference, Xi'an, P.R. of China.. pp. 457--460.

Erdegren, M. & Carlberg, T. (2011). Surface defects on direct chill as-cast 6XXX aluminum billets. In TMS Light Metals. San Diego, CA : (TMS Light Metals). pp. 675--680.

Carlberg, T. (2010). Silicon Particle Precipitation during DC Casting of Al-Si Clad Alloys. In Materials Science Forum. (Materials Science Forum). pp. 307--313.  

Hellström, L. M. , Gradin, P. A. & Carlberg, T. (2009). A device for studying wood chipping under realistic conditions. In Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009. (SPCI meddelande). pp. 252--254.

Carlberg, T. (2009). Silicon crystal formation during DC casting of aluminium-silicon alloys. In TMS Light Metals 2009. (TMS Light Metals). pp. 837--841.

Hellström, L. M. , Gradin, P. A. & Carlberg, T. (2008). A Study of Fracture processes in Wood Chipping. In 6th Fundamental Mechanical Pulp Research Seminar. Espoo :

Jaradeh, M. & Carlberg, T. (2007). Method Developed for Quantitative Assessment of Inclusions in aluminium Billets. In LIGHT METALS 2007. (LIGHT METALS). pp. 679--684.

Hellström, L. , Gradin, P. & Carlberg, T. (2007). Strain Distribution in Wood During Chipping. In International Mechanical Pulping Conference 2007, TAPPI.. pp. 251--255.

Carlberg, T. (2005). Radial Segregation during Microgravity Experiments : Presented at The International Conference on Advances in Solidification Processing, Stockholm, Sweden, June 2005.

Jin, H. , Jaradeh, M. & Carlberg, T. (2005). Solidification studies of 6xxx alloys with different Mg and Si contents. In Light Metals 2005. (LIGHT METALS). pp. 1039--1044.

Jaradeh, M. & Carlberg, T. (2004). Directional Solidification of Type AA3003 Alloys with Additions of Zn and Si. In SOLIDIFICATION OF ALUMINUM ALLOYS.. pp. 53--62.

Kastebo, J. & Carlberg, T. (2004). Temperature Measurements and Modeling of Heat Losses in Molten Metal Distribution Systems.. In LIGHT METALS 2004 : Proceedings of the Technical Sessions, 133rd Technical TMS Annual Meeting. (LIGHT METALS). pp. 649--654.

Holm, P. , Löth, K. , Larsson, B. & Carlberg, T. (2003). Solidification Experiments in Mirror Furnaces Flown in a GAS Payload on Space Shuttle STS-108. In Proceedings of the 16th ESA Symposium on European Rocket and Balloon Programmes and Related Research.. pp. 113--117.

Carlberg, T. , Winkler, C. & Amberg, G. (2000). Weak Convection Influencing Radial Segregation. In European Space Agency, (Special Publication) ESA SP.. pp. 431--436.