ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The distribution of carbon in the microstructure of the twinned martensite of Fe-23 Ni-0.4 C, has been studied by microautoradiography of radioactive carbon 14. A statistical analysis of the autoradiographs, observed in the scanning electron microscope for massive specimens or in the transmission electron microscope for thin foils, show that: (i) clustering of carbon in the twin boundaries of the martensite plates occurs rapidly by ageing at room temperature; (ii) two twinning systems may be active sites for carbon clustering in the same plate; (iii) carbon segregation seems more pronounced in twin boundaries than in martensite-martensite, martensite-austenite, or mid-rib interfaces; (iv) the precipitation of ∈-carbide by ageing at 100 and 150° C is confirmed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00551038
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