Fractal fracture and transformation toughening in CuNiAl single crystal
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 1337-1340 |
| Journal / Publication | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
| Volume | 28 |
| Issue number | 6 |
| Publication status | Published - 1997 |
Link(s)
Abstract
The fracture toughness JIc(ρ) and fractal dimension Df of fractured surfaces of CuNiAl single crystal have been measured at temperatures in the range 20 °C to 120 °C, in which thermoelastic martensitic transformation takes place. The parent phase has higher fracture toughness than the martensite phase due to stress-induced transformation. The relationship between JIc(ρ) and Df has been studied. It was found that log JIc(ρ) is linearly related to Df if the failure involves a single mechanism. The slope of the plot may either be positive or negative for brittle or ductile failure, respectively. The difference in the JIc(ρ)-Df correlation can be understood in terms of the micromechanism of fracture.
Citation Format(s)
Fractal fracture and transformation toughening in CuNiAl single crystal. / Shek, C. H.; Lin, G. M.; Lai, J. K L et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 28, No. 6, 1997, p. 1337-1340.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 28, No. 6, 1997, p. 1337-1340.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
