Sethupathi Rangaraj

What is your current job / programme of study?

I am doing PhD in Materials at the University of Manchester

What A-Levels (or equivalent) did you do?

I did Maths, Chemistry, Physics and Biology

Why did you choose a career in Materials Science and Engineering (MSE)?

I chose a career in Materials Science and Engineering because I realized that materials are the backbone of everything—from the muscles we move to the machines we make. I also enjoyed chemistry and physics during my A levels.

What did you enjoy most about your MSE course?

Although my background is in Mechanical Engineering, I spent a year working as a Materials Quality Engineer in aerospace, and that’s when it hit me—materials are the foundation of everything we build. This realization fascinated me and led me to pursue a master’s in advanced engineering Materials and now a PhD. What I enjoy most about MSE is how it connects me to both the industrial world and cutting-edge research. These connections constantly inspire me and keep me amazed by how integral materials are to everything.

What is your research about?

My research focuses on studying the fatigue behaviour of aluminium alloys, specifically AlSi10Mg, which is commonly used in additive manufacturing. I’m exploring how this material performs under different conditions and how we can enhance its properties for more sustainable applications. The goal is to understand how these materials behave at a microscopic level and use that knowledge to develop stronger, more durable components for industries like aerospace and automotive. Ultimately, I’m working toward solutions that not only improve material performance but also contribute to sustainability and reduced emissions.

What is the coolest thing you have done in your career so far?

I designed a CAD model of a chariot and 3D printed it, and seeing my idea come to life was awesome! I also used X-ray CT to examine the internal porosity of my sample, which was incredible—before this, I only knew X-rays were used for imaging the human body.

What do you see yourself doing in the future?

I want to work on impactful research that bridges the gap between core science and real-world applications. Delving deeper into materials might unravel their core characteristics and theories, which is essential, but I want to focus on practical unique applications. Researching with controlled parameters will allow me to feel more satisfied with my contributions. I’m also curious about enhancing the field with machine learning.

What is your favourite material (and why)?

I can say carbon fibre (prepreg). I had the chance to work with it in my previous job, and I love its unique nature. It can be folded into complex shapes and layered, which makes it incredibly versatile. Plus, the weight-to-strength ratio is outstanding, allowing for lightweight yet strong structures.

What advice would you give your 16-year-old self?

Don’t worry too much; your instincts and thoughts matter. Follow your intuition and don’t let others overly influence your path. You’re doing great—just keep going!

Links to external profile pages

Linked in- https://www.linkedin.com/in/sethupathi-r/

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