Search Results for quenched and tempered microstructures

Fig. 7 Tempered martensitic microstructure of a quench-hardened and tempered PM carbon steel (F-0008) More

Fig. 9 Tempered martensitic microstructure of a quench-hardened and tempered PM copper steel (FC-0208) More

Fig. 17 Tempered martensitic microstructure of a quench-hardened and tempered part made of prealloyed steel (FL-4605) More

Fig. 33 Tempered martensitic microstructure of a quench-hardened and tempered P/M carbon steel (F-0008) More

Fig. 38 Tempered martensitic microstructure of a quench-hardened and tempered P/M copper steel (FC-0208) More

Fig. 47 Tempered martensitic microstructure of a quench-hardened and tempered part made from a prealloyed steel (FL-4605) More

Fig. 35 Micrograph of AISI 4140 steel as quenched and tempered. The microstructure is tempered martensite with evidence of decarburization and high-temperature oxidation on the surface of the crack profile. 50×; 2% nital etch. Source: Ref 27 More

Fig. 36 Micrograph of AISI 4140 steel as quenched and tempered. The microstructure is tempered martensite with intergranular quench cracking along the prior austenite grain boundaries. 100×; 2% nital etch. Source: Ref 27 More

Fig. 42 Micrograph of AISI 4140 steel as quenched and tempered. The microstructure is tempered martensite with quench cracking in the area of dimensional change. 91×; 2% nital etch. Source: Ref 27 More

Fig. 43 Micrograph of AISI 4142 steel as quenched and tempered. The microstructure is tempered martensite with quench cracking at the fillet radius. 100×; 3% nital etch. Source: Ref 27 More

Fig. 44 Micrograph of AISI 4140 steel as quenched and tempered. The microstructure is tempered martensite with quench cracking initiating from a machine groove. 100×; 2% nital etch. Source: Ref 27 More

Fig. 55 Micrograph of AISI 1045 steel as quenched and tempered. Microstructure shows bands with banded tempered martensite and some bainite. The crack profile revealed evidence of tempering oxide and secondary cracking. 200×; 2% nital etch. Source: Ref 27 More

Fig. 71 Micrograph of AISI 4140 steel as quenched and tempered; microstructure is tempered martensite, where cracking is promoted by alloy depletion. 91×; 2% nital etch. Source: Ref 27 More

Fig. 87 Micrograph of AISI 4140 steel as quenched and tempered. Microstructure shows banded martensite and tempered martensite/bainite. Subsurface cracking is illustrated. 100×; 2% nital etch. Source: Ref 27 More

Fig. 29 Tempered martensite microstructure (UNS G41400 steel) obtained by quenching and tempering. Etched with 2% nital. 750× More

Fig. 39 Microstructure of quenched and tempered AISI 4140 steel consisting of tempered martensite with a quench crack at the location of dimensional change. 100×. 2% nital. Source: Ref 39 More

Fig. 44 Microstructure of quenched and tempered AISI 4140 steel consisting of tempered martensite with evidence of decarburization and high-temperature oxidation on the surface of the crack. 50×. 2% nital. Source: Ref 42 More

Fig. 45 Microstructure of quenched and tempered AISI 4140 steel consisting of tempered martensite with intergranular quench cracking along the prior austenite grain boundaries. 100×. 2% nital etch. Source: Ref 42 More

Fig. 54 Microstructure of quenched and tempered AISI 1045 steel containing bands of tempered martensite and some bainite. Tempering oxide and secondary cracking was observed in the crack. 200×. 2% nital etch. Source: Ref 42 More

Fig. 55 Microstructure of quenched and tempered AISI 1045 steel, representative of an underheated microstructure adjacent to cracking. 400×. 2% nital etch. Source: Ref 42 More