Effect of 475 °C Embrittlement on Fractal Behavior and Tensile Properties of a Duplex Stainless Steel

Effect of 475°C embrittlement on the mechanical properties of duplex stainless steel

“…Hilders et al [21] studied the effect of 475 • C embrittlement on fractal behaviour and tensile properties of DSS and observed dimple type of fracture mode for small aging times and transgranular as well as dimple rupture for 24, 40, and 120 h of aging. They also observed decrease in fractal dimension and the true fracture strain with increase in time of aging.…”

“…However, this grade of steel embrittles when exposed in the temperature range of 280-500 • C limiting its application to temperatures below 280 • C. This phenomenon is termed 475 • C embrittlement as the rate of embrittlement is highest at 475 • C [13][14][15]. The embrittlement changes the tensile [16][17][18][19][20][21][22], fracture [23][24][25][26][27][28][29][30][31][32] and fatigue [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]23,48,49] behaviour of this steel.…”

Microstructure, Strength, and Fracture Topography Relations in AISI 316L Stainless Steel, as Seen through a Fractal Approach and the Hall-Petch Law

“…As the mechanical properties depend on the microstructure, it is clear that the topography of the fractured surfaces is also related to the mechanical properties. On the other hand, in view of the usefulness of the fractal geometry to study the relation between fracture surface tortuosity and mechanical properties [17][18][19][20][21][22][23][24][25][26][27] and that of the Hall-Petch relationship to relate microstructure and mechanical properties [28][29][30][31][32], it is understandable that the microstructure-fracture topography-mechanical properties relationship can be studied by combining both approaches. So far only a few bridges have been built between these two approaches (see, e.g., [28,33]).…”

Effect of heat treatment on mechanical properties of bio-medical Ti-6A1-4V eli alloy

“…Different relationships between the fractal dimension of fracture surfaces and mechanical properties have been reported in the literature. Hilders et al [75,76] reported that yield strength and ultimate tensile strength (UTS) decreased and impact energy/toughness increased with increasing fractal dimension for duplex stainless steel tested at room temperature. Dai and Wu [77] reported that the fractal dimension increased with increasing toughness in a composite material.…”