ENHANCEMENT OF MECHANICAL AND BALLISTIC PROPERTIES OF QUENCHED AND TEMPERED HIGH STRENGTH LOW ALLOY STEEL WELDMENTS

Hsla quenched& tempered steel weldments are prone to number of welding defects as regards to mechanical & ballistic properties. in this investigation an attempt has been made to device such welding methodology which gives sound weldment by keeping the adequate mechanical and ballistic properties intact. extensive literature survey reveals that up till now hard faced layer was deposited in between the austenitic stainless steel welding layers of q & t hsla steel weldments for good ballistic & mechanical properties but this didn't work well. this study focuses on the shortfall of the previous studies. on the basis of which there has been proposed a strategy to eliminate cracks and defects in weldments by depositing soft buttering layer in between the base metal and hard faced layer low hydrogen ferrite consumables have been recommended to apply the buttering layer. the results obtained are in good agreement with the already published research.