the current work was carried out to characterize welding of aisi 310 austenitic stainless steel to inconel 657 nickel-chromium superalloy. the welds were produced using four types of filler materials; the nickel-based corresponding to inconel 82, inconel a, inconel 617 and austenitic stainless steels 310. of the two joints involved, this paper describes the choice of welding consumables for the...

• Autogenous laser welding produces concave end-crater in 17–4 PH that is prone to solidification cracking. Solidification cracking at weld causes leakage. The use of novel zigzag power ramp-down profile significantly shorter, discontinuous, and leakage free cracks. An analysis presents a problems automotive pressure sensor, caused by crater A two-beam (TBLW) was used circumferential weld, whic...

Required microstructural attributes of an alloy vary with structural applications. The fine-tuning capability laser-powder bed fusion (L-PBF) additive manufacturing (AM) enables application specific manufacture the components. Such L-PBF AM requires alloys that exhibit wide processing window and are amenable to multiple deformation mechanisms. However, high hot cracking susceptibility Al poses ...

A new phenomenon is theoretically predicted, namely, that solid-solid transformation with a relatively large transformation strain can occur through virtual melting along the interface at temperatures significantly (more than 100 K) below the melting temperature. The energy of elastic stresses, induced by transformation strain, increases the driving force for melting and reduces the melting tem...