TWI Digital Library

The modification of a thermally sprayed cemented layer of WC-CrC-Ni (WC-20%CrC-7%Ni) and WC-Co (WC-12%Co) using friction stir processing (FSP) was investigated. Layers of WC-CrC-Ni and WC-Co were sprayed onto SKD61 substrate (17 mm thickness) by HVO…

A combination of laser surfacing and friction stir processing (FSP) was employed to modify a cold-worked AISI D2 tool steel (1.5%C, 11%Cr, 0.83%Mo, 0.36%V) with the aim of clarifying the FSP conditions required to obtain a microstructure with unifor…

Precipitation hardened copper alloy sheets (thickness 2 mm) containing Cu, 0.9-1.2%Cr, 0.06-0.09%Zr were joined by friction stir welding (FSW), process parameters were optimised to realise defect-free joints, and the microstructure and mechanical pr…

A review is presented of various models developed to understand the effects of thermal cycles and metal flow behaviour on the microstructure and properties of welded joints fabricated by friction stir welding of steel, and a comprehensive numerical …

Friction stir welds in austenitic stainless steels 316L (0.019%C, 0.87%Mn, 17.70%Cr, 12.19%Ni, 2.19%Mo) and 304 (0.040%C, 1.08%Mn, 18.10%Cr, 8.56%Ni); duplex stainless steel 329J4L (0.016%C, 0.78%Mn, 24.81%Cr, 7.27%Ni, 3.13%Mo, 0.43%Cu, 0.41%W); and…

A pinless tool with involute grooves on its shoulder surface was designed to facilitate friction stir spot welding (FSSW) of 2024-T3 aluminium alloy (Al, 3.8-4.9%Cu, 1.2-1.8%Mg, 0.3-0.9%Mn) sheets (thickness 1.5 mm) and the influence of process para…