Creep of an oxidation resistant coated Mo-9Si-8B alloy

In order to evaluate the impact of an oxidation resistant coating on the structural performance of a Mo-9Si-8B alloy tensile creep experiments were conducted at 1200 °C. After a plastic strain of 6% the creep rates of the coated samples compared favorably with the reported values for uncoated sample...

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Bibliographic Details
Published in:Intermetallics 2020-05, Vol.120, p.106743, Article 106743
Main Authors: Gombola, Camelia, Schliephake, Daniel, Heilmaier, Martin, Perepezko, John H.
Format: Article
Language:English
Subjects:
Coating
Creep
Creep strength
High-temperature materials
Impact resistance
Molybdenum base alloys
Mo–Si–B alloys
Oxidation resistance
Oxidation-resistant coating
Pack cementation
Plastic deformation
Self healing materials
Tensile creep
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Summary:In order to evaluate the impact of an oxidation resistant coating on the structural performance of a Mo-9Si-8B alloy tensile creep experiments were conducted at 1200 °C. After a plastic strain of 6% the creep rates of the coated samples compared favorably with the reported values for uncoated samples. Moreover, the coating structure was maintained during creep deformation and the coating exhibited a self-healing capability. •Tensile creep testes were carried out at 1200 °C for coated for Mo-9Si-8B alloys.•Full retention of the coating after 6% plastic strain.•The coating structure was maintained during creep deformation.•Observed creep rates for coated samples are consistent with reported values for uncoated material.•Coating has a negligible effect on the creep behavior.
ISSN:0966-9795
1879-0216
DOI:10.1016/j.intermet.2020.106743