Mechanical properties and dynamic strain aging behavior of Zr–1.5Nb–0.4Sn–0.2Fe alloy

Dynamic strain ageing, deformation, and fracture behavior of modified 9Cr–1Mo steel

“…Kishore et al [12] studied appearance and disappearance of serrations in modified 9Cr-1Mo steel and observed that disappearance was mainly due to diffusion of nitrogen from dislocations to precipitate sinks, causing fall in nitrogen content of the matrix below the critical concentration required to sustain the serrated flow. Generation of high density of dislocations and consequent increase in work hardening in the region of DSA has been reported earlier [1,31]. The degree of work hardening (UTS/ YS) in temperature range of DSA (Table 2) was found higher in the present investigation.…”

Microstructure and tensile properties of hot-rolled Zr50–Ti50 binary alloy

“…In addition to these traditional nuclear materials, Zr alloys [4][5][6][7][8][9][10][11][12], such as ZrTiAlV and ZrTiCr alloys, have been also investigated to expand its applications, i.e., in structural and medical materials [9][10][11][12][13][14][15].…”

Serrated flow behavior in AL6XN austenitic stainless steel

“…Various physical models and micro-mechanism had been proposed to explain this phenomenon early [6][7][8], and it is widely accepted that dynamic strain aging arises from the interaction between diffusing solute atoms and mobile dislocations during plastic deformation and depends on the deformation rate and temperature, which govern the velocity of mobile dislocations and diffusing solute atoms. Dynamic strain aging has a significant influence on the mechanical properties, such as strength, ductility and low-cycle fatigue of materials [9][10][11]. Nasser et al and Abed et al have carried out studies on the plastic deformation theory and behavior of the AL6XN steel, respectively and serrated flow phenomenon has been found in the AL6XN steel at temperatures between 500 and 1000 K and at a strain rate of 0.001/s [12,13].…”