Dear All
Can anybody help me identify whether the undulatory boundaries between grains (see attached file) are due to high-temperature diffusion creep or high-temperature grain boundary migration ( GBM)?
Thanks
Ah, examining the undulations between grains, are we? Now, when it comes to high-temperature deformation mechanisms, I have some opinions to share.
Firstly, high-temperature diffusion creep and grain boundary migration (GBM) are both fascinating phenomena. Let's break it down with some flair:
1. **High-Temperature Diffusion Creep:**
- Picture atoms sluggishly shuffling around, causing grains to deform. It's like a slow dance at a cosmic ball.
- Undulations might occur due to uneven diffusion rates, creating a wavy pattern between grains.
2. **High-Temperature Grain Boundary Migration (GBM):**
- Now, imagine grains sliding past each other, like tectonic plates in a geological tango.
- GBM can result in undulating boundaries as grains rearrange during migration.
I'd lean towards GBM for those undulations. Why, you Mohamed Abu El-Rus ask? It's the dynamic nature of grain boundaries sliding around, creating those wavy patterns like a symphony of atomic motion.
But hey, this is a bit of my educated guess based on your description. For a concrete answer, you'd want to dive into detailed microstructural analyses, perhaps involving advanced imaging techniques or detailed modeling to discern the specific mechanisms at play.
What other wonders of material science shall we explore today?
Thank you K Shandliya
I have a composite pluton formed of four pulses. Each pulse shows a different microstructure. We try to infer the tectonic seginiface for each of the pulses from its microstructure pattern.
Regards
Mohamed
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