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Home » Authors » Debbie Aliya

Articles by Debbie Aliya

Debbie Aliya

Failure Analysis: Broken, Deformed, Worn or Corroded (part 2)

Debbie
Debbie Aliya
October 16, 2018
No Comments

Picking up where we left off, this latest crack was also a fatigue crack.


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Debbie Aliya

Failure Analysis: Broken, Deformed, Worn or Corroded (part 1)

Debbie
Debbie Aliya
October 9, 2018
One Comment

People send their broken, deformed, worn or corroded parts, and I help them figure out what went wrong. That’s my standard “elevator speech.”


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Debbie Aliya

Failure Analysis by Methodology Instead of by Recipe

Debbie
Debbie Aliya
August 6, 2018
No Comments

What is the difference between following a recipe or a procedure and using a methodology?


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Debbie Aliya

Looking at a Dead Moth

Debbie
Debbie Aliya
January 15, 2018
No Comments

A professor visited my lab to discuss teaching a new failure-analysis class. I wanted to show off my equipment, and insects are always interesting to look at in a scanning electron microscope. So I save dead bugs, when I see them, for educational purposes.


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Debbie Aliya

What is a quench crack?

Part 2
Debbie
Debbie Aliya
December 1, 2017
No Comments

I always wondered why quench cracks were intergranular. That’s one of the questions that I did not notice wasn’t answered when I was in school. But some years back I realized that if two grains are adjacent, and during cooling one is getting smaller due to normal thermal contraction and the adjacent one is getting bigger at the moment of transformation to martensite, then there could be a lot of stress at the grain boundary.


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Debbie Aliya

What is a quench crack?

Part 1
Debbie
Debbie Aliya
October 24, 2017
No Comments

Steel is an exciting and versatile material. I still think that after working with it and studying it for 42 years!


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Debbie Aliya

Fatigue in Cylindrical Parts Loaded in Uniaxial Tension

Part 4
Debbie
Debbie Aliya
September 26, 2017
No Comments

My “Indian sister” who attended the seminar also wanted to know WHY the curvature reverses.


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Debbie Aliya

Fatigue in Cylindrical Parts Loaded in Uniaxial Tension

Part 3
Debbie
Debbie Aliya
August 22, 2017
No Comments

Back to the curvature issue...


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Debbie Aliya

Fatigue in Cylindrical Parts Loaded in Uniaxial Tension

Part 2
Debbie
Debbie Aliya
August 8, 2017
No Comments

One of the participants of the two-day India seminar that I taught for the Chennai Chapter of ASM International and the Madras Metallurgical Society in February 2017 sent an interesting question


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Debbie Aliya

Fatigue in Cylindrical Parts Loaded in Uniaxial Tension

Part 1
Debbie
Debbie Aliya
July 20, 2017
No Comments

One of the participants of the two-day India seminar that I taught for the Chennai Chapter of ASM International and the Madras Metallurgical Society in February 2017 sent an interesting question.


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