WO Internship (Modelling of N removal in oxygen steelmaking process)

Ondertitel

Wat ga je doen?

The requirement of steel for automotive and appliance sectors demands good formability and toughness, along with good surface quality. These demands are met through “interstitial free (IF)” steel grades, which necessitates controlling nitrogen to very low levels (~ 20-30 ppm). On the contrary, steel grades such as tin plate or high nitrogen martensitic steel (used in aerospace applications such as aviation turbine spindle bearing) require high hardness, strength and corrosion resistance, which is imparted by high levels of nitrogen (60-120 ppm).

The current Basic oxygen furnace (steels made by integrated route) is an excellent removal of N due to the strong stirring effect of CO gas produced by the reaction between the melt Carbon and supplied oxygen. However, in the future green steelmaking route with alternate source of hot metal other than BF, the composition of hot metal is expected to be different and in particular a lower concentration of Carbon is expected to impact the kinetics of N2 refining process. Therefore a good understanding of the N absorption and desorption kinetics is important to control the final N content in the steel grade.

The current research work aims to study the kinetics of N2 removal and develop a mathematical model to predict the N concentration in liquid steel during steelmaking operation. The study will make use of the samples obtained from a 6 ton pilot scale experimental converter data (Imphos study1) to validate the N prediction model. The objectives of the study are:

1. Literature review of thermodynamics and kinetics of N removal in steelmaking process
2. Measurement of N concentration in pilot converter samples
3. Develop a kinetic model of N removal for steelmaking process
4. Validate the model with measured pilot plant data
5. Analysis of the effect of process variables on N removal process

Herken jij jezelf hierin?

We are looking for a master student with educational background from process metallurgy/chemical engineering/ applied physics for a minimum of 6-month internship (with the option to extend/exchange to a MSc graduation project).

We expect you to be/have:

• Interested in interpreting laboratory experiments
• Interested in mathematical modelling and process metallurgy
• Experience in writing computer scripts or willing to learn
• critical and curious

Wat bieden wij jou?

We offer you a paid internship with proper guidance. In consultation with you, we start with drawing up your assignment to make sure that it fits the requirements of your university. You can gain valuable experience within a large organization and Dutch only manufacturing industry. You can count on a no-nonsense and result-oriented organization, within which you can make a concrete contribution to the realization of improvement objectives. During your training period you can regularly participate in events such as student tours and lunch lectures. We also offer the possibility to make use of our Library Services. When you are in your final Master of Bachelor internship, you can temporarily become part of our internal Association for young professionals "The Magnet"

Wat is jouw werkomgeving?

The project will be conducted within R&D department of Tata Steel Ijmuiden with great opportunities for networking and being closely involved in the future developments. On a daily base you will working in the R&D innovation centre office, surrounded with other students and colleaguas with different kinds of know-how.

Solliciteren of meer weten?

Does this assignment appeal to you? Then apply immediately via the application button below. Fill in the registration form as completely as possible and do not forget to upload both your CV and your motivation. Do you still have questions and would you first like more information? Please contact one of our Campus recruiters at 0251-494000.