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- W2378346622 abstract "Vacuum sintering iron-base alloy was tempered in the temperature range of 600~700 ℃ for 1 h following by air cooling after austenitizing and oil quenching. Hardness and impact toughness were tested at different tempering temperature. Microstructure and fracture morphology examination were conducted by optical microscope, X-ray diffraction, scanning electron microscope and energy disperse spectroscopy. The results show that the mass fraction of the second phase carbide M23C6 remains fairly static about 3.5%. The amount of carbide particles M6 C decreases sharply and the average size of M6 C refines obviously. The effects of second phase strengthening of carbide particles M6 C turn deteriorated, a decreasing on hardness occurs with increasing the tempering temperature, while the matrix structure is softened, an increasing on impact toughness also happens with increasing the tempering temperature. When the tempering temperature is 675 ℃, the iron-base alloy presents hardness of 40 HRC, and impact toughness is increased by 11%. The fracture surface of the iron-base alloy is a typical intercrystalline fracture." @default.
- W2378346622 created "2016-06-24" @default.
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- W2378346622 date "2014-01-01" @default.
- W2378346622 modified "2023-09-27" @default.
- W2378346622 title "Effect of tempering temperature on microstructure and mechanical properties of iron-base alloy" @default.
- W2378346622 hasPublicationYear "2014" @default.
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