Search Results for Heat affected zone

Fig. 2 Macrograph showing fusion zone and heat-affected zone in an electroslag weldment More

Fig. 2 Macrograph showing fusion zone and heat-affected zone (HAZ) in an electroslag weldment More

Fig. 11 Comparison of J c values for heat-affected zone (HAZ), weld fusion zone (W), and base metal (BM). Values of dJ / da , in MPa, are provided beyond each bar. Cracks are oriented parallel to the welding direction. SA, submerged arc; GTA, gas-tungsten arc; SMA, shielded-metal arc; GMA More

Fig. 8 Range of weld heat-affected zone widths as a function of heat-source intensity More

Fig. 36 Intergranular corrosion of the inside surface heat-affected zone of E-Brite stainless steel adjacent to the weld fusion line. Electrolytically etched with 10% oxalic acid. 100× More

Fig. 19 Calculated heat-affected zone thermal cycles in positions y = 0 and z = 0. Operational conditions as in Fig. 18 . Source: Ref 1 More

Fig. 9 (a) Steep temperature gradient in the heat-affected zone (HAZ) near the fusion line leads to a rapid change in grain size, which may tend to suppress grain growth due to grain shape changes. Arrows indicate direction of moving grain boundaries. Adapted from Ref 4 . (b) Schematic More

Fig. 11 Schematic illustration of austenite grain size in the heat-affected zone (HAZ) of microalloyed steel with second-phase particles as a function of distance from the fusion line and associated thermal cycle. The movement of grain boundaries driven from the reduction of total surface More

Fig. 34 Schematic showing heat-affected zone (HAZ) microstructure in selected high-heat-input welds. (a) Titanium oxide steel. (b) Titanium nitride steel. AF, acicular ferrite; UB, upper bainite. Source: Ref 44 More

Fig. 35 Heat-affected zone (HAZ) toughness of titanium nitride and titanium oxide steels with 420 MPa (60 ksi) yield strength. Source: Ref 45 More

Fig. 40 Schematic showing that the heat-affected zone isotherms and the size and location of the coarse-grained region (CGR) can be controlled in a tandem three-wire high-current gas metal arc welding procedure. Grain refinement of initially formed coarse-grained regions is obtained More

Fig. 5 Schematic of keyhole plasma and surface plasma. HAZ, heat-affected zone. Courtesy of Air Liquide More

Fig. 8 Typical calculations of heat-affected zone microstructural constituent and hardness as a function of cooling rate. For a given low-carbon steel composition, (a) a slow cooling rate of 10 °C/s leads to a soft microstructure and (b) a faster cooling rate leads to a hard martensitic More

Fig. 19 Predicted accumulation of creep damage in the heat-affected zone of a chromium-molybdenum steel using constitutive equations as a function of service lifetime. Source: Ref 192 More

Fig. 6 Computed heat-affected zone recrystallization diagram for thin-plate welding of predeformed AA5086-H24 showing contours of X rex for various combinations of q 0 / vd and T p More

Fig. 7 Computed heat-affected zone grain-growth diagram for thick-plate welding of a titanium-microalloyed steel. Source: Ref 1 , 20 More

Fig. 8 Computed heat-affected zone grain-growth diagram for thick-plate welding of a niobium-microalloyed steel. Source: Ref 1 , 20 More

Fig. 9 Schematic representation of the heat-affected zone microstructure evolution during welding of duplex stainless steels. Source: Ref 1 , 33 More

Fig. 18 Predicted heat-affected zone (HAZ) yield strength profiles for single-pass butt welds of AA6082-T6 immediately after welding and following complete natural aging. (a) Effect of the applied heat input, q 0 / vd , on the HAZ yield strength distribution for h = 0 (adiabatic surfaces More