Subodh Kumar

TL;DR: In this article, the effect of heat input on the microstructure and mechanical properties of gas tungsten arc welded 304 stainless steel (SS) joints was studied and the results indicated that the joints made using low heat input exhibited higher ultimate tensile strength than those welded with medium and high heat input.

TL;DR: In this article, the influence of sensitization on the metallurgical and impact toughness behavior of different gas tungsten arc AISI 304L welds has been investigated, where each weld has been characterized individually to understand the role of welding conditions on the carbide precipitation behavior which influences its impact toughness performance.

TL;DR: In this paper, the influence of variable arc energy input on their sensitization and pitting performance was examined for three AISI 304L stainless steel welds, which were subjected to post-weld thermal aging treatments comprising of low-temperature sensitization of 500°C for 1, 5, and 11 days, and classical sensitisation of 650°C and 1, 12, and 24h.

TL;DR: In this paper, the influence of welding stainless steel on microstructural development and associated mechanical performance were investigated, and it was shown that the weld metal under low welding heat input condition possessed relatively fine columnar dendritic microstructure which resulted in high microhardness and impact toughness of this zone.

TL;DR: In this paper, three different filler combinations comprising of ferritic, austenitic, and (ferritic+austenitic) were used to fabricate butt welded joints on 15"mm thick ultrahigh strength steel using hybrid ar...