Search Results for thermal cycles

Fig. 2 Graphs to show differences in thermal cycles. (a) Thermal cycles used to generate a conventional CCT diagram. (b) Weld thermal cycles. The numbers in (b) correspond to locations indicated in the HAZ. Note the correspondence between the thermal cycles in (a) and those in Fig. 1 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. 46 Schematics showing the effect of weld thermal cycles on the softening in the heat-affected zone (HAZ) in age-hardenable aluminum alloys. (a) Thermal cycles in the HAZ (for corresponding locations in the weld, see inset). (b) HAZ hardness profiles before and after aging. PWAA, postweld More

Fig. 47 Postweld heat treatment cracking in nickel-base alloys. (a) Thermal cycles during welding and heat treating. (b) Cross section of the weld showing fusion zone (FZ) and heat-affected zone. (c) Changes in microstructure. Adapted from Ref 7 More

Fig. 10 Thermal cycles used in the experiment. Courtesy of Isoflama Ind. Com., Indaiatuba, Brazil More

Fig. 55 Typical thermal cycles for sealing glass-ceramics to Inconel 718 and Hastelloy C276 (a) and for sealing glass-ceramics to stainless steel and copper (b) More

Fig. 32 Typical thermal cycles for brazing in vacuum furnaces with molybdenum (red) and graphite (black) heating elements More

Fig. 36 Schematic showing the effect of weld thermal cycles on the softening in the HAZ in age-hardenable aluminum alloys. (a) Thermal cycles in the HAZ (for corresponding locations in weld, see inset. (b) HAZ hardness profiles before and after aging. PWAA, postweld artificial aging. Source More

Fig. 3 Thermal cycles for conventional (a) and microalloy (b) steels. Source: Ref 4 More

Fig. 14 Thermal cycles calculated by Eq 9 for two distances. Plate thickness of 50 mm (2 in.); root gap of 24 mm (0.9 in.); I = 480 A; V = 35 V; v welding = 0.02 cm/s (0.008 in./s) More

Fig. 50 Number of thermal cycles to cracking as a function of the maximum cycling temperature for a number of iron-base materials (see Table 20 for composition). Source: after Ref 82 More

Fig. 16 Simulated thermal cycles at a point on the first layer (shown in red in the figure) for a laser-based directed-energy deposition process using two adjacent tracks and 19 layers to produce a blade structure made of Ti-6Al-4V alloy. Peak temperatures exceed the melting temperature More

Fig. 2 Representative thermal cycles (T. cycle) calculated for successive passes of a heat source in a typical layer-melting stage for electron-beam-melted Inconel 718. The data show the rapid reduction in peak width and the reduction in cooling rate (C. rate) over many orders of magnitude More

Fig. 3 Schematic showing differences between weld thermal cycle and thermal cycle used to generate a conventional continuous cooling transformation (CCT) diagram. Note the much higher heating rate, higher temperature, and shorter time above Ac 3 temperature for welding. HAZ, heat-affected More

Fig. 5 Effect of a change in the peak temperature of the weld thermal cycle (from 1000 to 1400 °C, or 1830 to 2550 °F) on the continuous cooling transformation characteristics. M, martensite; B, bainite; F, ferrite; P, pearlite. Source: Ref 8 More

Fig. 17 Computed thermal cycle (time-temperature plot) in steel at two different welding currents. The electrode force and weld time are constant as 2.2 kN and 200 ms, respectively. FZ, fusion zone More

Fig. 27 Graph of thermal cycling capability of one IGBT manufacturer, showing thermal cycling capability for standard (copper) and traction (AlSiC) high-power modules More

Fig. 20 Schematic representation of development of thermal-cycling-induced strains in a ceramic ball grid array package. PCB, printed circuit board More

Fig. 2 Effects of OFC thermal cycle on shape of sections. (a) Plate with large restraint on one side of kerf, little restraint on the other side. Phantom lines indicate direction of residual stress that would cause deformation except for restraint. (b) Plate with little restraint on either More

Fig. 4 Effect of a change in the peak temperature of the weld thermal cycle (from 1000 to 1400 °C, or 1830 to 2550 °F) on the CCT characteristics. M, martensite; B, bainite; P, pearlite; F, ferrite. Source: Ref 8 More