Fig. 12 Variation in microhardness with temperature. Microhardness is based on a 1 kg load, and all alloys are of medium WC grain size. A, 97WC-3Co alloy; B, 94WC-6Co; C, 80WC-12(Ti,Ta,Nb)C-8Co; D, 86WC-2TaC-12Co More

Fig. 12 Variation in microhardness with temperature. Microhardness is based on a 1 kg load, and all alloys are of medium WC grain size. A, 97WC-3Co alloy; B, 94WC-6Co; C, 80WC-12(Ti,Ta,Nb)C-8Co; D, 86WC-2TaC-12Co More

Fig. 6 Illustration of topographical imaging of microhardness marks using a backscattered electron detector. (a) Imaged using secondary electrons. (b) Imaged using backscattered electrons More

Fig. 3 Microhardness of a weld heat-affected zone in 18Ni(250) maraging steel. Source: Ref 4 More

Fig. 10 Variation of microhardness with aging time at 400 °C for Al-5.2Cr-1.9Zr-1Mn alloy compared to Al-8Fe alloy. Source: Ref 59 More

Fig. 18 Room-temperature microhardness of hard coating materials. The hatched area (unshaded) indicates the range of hardness normally observed in these materials. Source: Ref 24 More

Fig. 18 Evolution of microhardness of draw bead surfaces, normalized by initial microhardness of draw bead surfaces More

Fig. 23 Use of microhardness indents to measure disector thickness. (a) Microhardness indents placed in the first large-area disector (LAD) plane become smaller in the second LAD plane (b). The change in the size of the indents can be used to compute the amount of material removed (i.e., LAD More

Fig. 6 (a) Representative micrograph of microhardness indentations for M48 tool steel exposed for two hours at 1000 °C (1830 °F) in air, and (b) corresponding microindentation hardness values. Source: Ref 10 . More

Fig. 9 Effect of milling time on microhardness of Nickel 123 powder More

Fig. 3 Microhardness mapping of a single chip from machining illustrates high hardness along the chipwash surface. The high heat from work and friction can locally work harden the chip and workpiece. Courtesy Gilles L'Esperance, Ecole Polytechnique du Montreal More

Fig. 14 Microhardness traverse across the weld, heat-affected zone, and unaffected base materials. (a) Schematic of a weld cross section. (b) Typical cross section More

Fig. 27 Cross section of a DP780 steel weld with indentations from microhardness testing. Source: Ref 23 More

Fig. 28 Microhardness profiles of various material combinations. HSLA, high-strength, low-alloy; DP, dual phase. Source: Ref 14 More

Fig. 18 Room-temperature microhardness of hard coating materials. The hatched area indicates the range of hardness normally observed in these materials. Source: Ref 24 More

Fig. 18 Spot weld cross-sectional micrograph and microhardness profile for 1.6 mm (0.06 in.) Q&P 980. HAZ, heat-affected zone More

Fig. 20 Microhardness profile across 1.6 mm (0.06 in.) Q&P 980 laser-welded joint. HAZ, heat-affected zone More

Fig. 22 Microhardness profile across 1.6 mm (0.06 in.) Q&P 980 metal-active-gas-welded joint. HAZ, heat-affected zone More

Fig. 16 Results of interlaboratory microhardness traverse gage repeatability and reproducibility study on samples with 1.3 and 3.2 mm (0.05 and 0.125 in.) effective case depth. Courtesy of Caterpillar Inc. More

Fig. 40 Comparison of depths of wear tracks with Knoop microhardness for coatings. Source: Ref 43 More