Title

Microstructural mechanical properties and yield point effects in Mo alloys

Abstract

The mechanical properties of two phase Mo-Si-B alloys were analyzed with nanoindentation techniques and atomic force microscopy. A nanoindenting atomic force microscope allows local determinations of hardness and modulus of the T2 phase and Mo(ss) phase. The T2 phase and Mo(ss) phase in these alloys show a hardness of 21 and 8.5 GPa, respectively. The modulus of the T2 phase is nearly 10% higher than that for the Mo(ss) phase. Large pop-ins are found during indenting in the T2 phase but not in the Mo(ss) phase which has a higher surface roughness.

Document Type

Article

DOI

https://doi.org/10.1016/S0921-5093(01)01086-3

Keywords

Atomic force microscopy, Hardness, Mo SiB 5 2, Nanoindentation, Yield-point

Publication Date

12-1-2001

Journal Title

Materials Science and Engineering A

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