Experimental Approach to Study the Effect of Hydrogen Embrittlement on Structural Steel under the Influence of Impact Loading and Wear Characterization

Author(s):

Basukumar H K , KLE institute of Technology; Arun K V, Government college of Engineering

Keywords:

Hydrogen Embrittlement, Impact, Wear, SEM Analysis, Structural Steel

Abstract:

In the past two decades, majority of catastrophic failures, due to hydrogen embrittlement in almost all the domains have been reported. These intense failures have grabbed the attention of researchers to a larger extent towards the study of failure mechanisms in the embrittled materials. In view of this, experimentations have been carried out on the embrittled steel under impact and wear loads. The specimen preparation and experimentations were carried out in accordance with ASTM E 23 and ASTM G99 standards. The results have shown that the brittle fracture of the specimen can occur due to the material having low fracture toughness or from the exposure of the material under load to certain corrosive environment. From the experimental results, it can be observed that material experiences the ductile-to-brittle transition with increasing in soaking period. The study of worn surfaces suggested that depending on wear environment and applied load, different features of wear mechanisms were involved. The mechanism of failure as a function of material condition and loading types has been discussed with the aid of SEM micrographs.

Other Details:

Manuscript Id	:	IJSTEV3I4049
Published in	:	Volume : 3, Issue : 4
Publication Date	:	01/11/2016
Page(s)	:	108-113

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