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Improving fracture toughness and hardness of Fe2B in high boron white cast iron by chromium addition
AbstractThe effect of chromium containing 0%, 0.49%, 1.02%, 2.1%, 3.2% (in wt.%) on the morphology, fracture toughness and micro-hardness property of Fe2B in high boron white cast iron was investigated. The results indicated that, with an increase of chromium addition, the morphology of Fe2B becomes larger and changes from the block to rod shape, its micro-hardness increases and the fracture toughness increases first and then decreases. Compared with the fracture toughness (3.8MPam1/2) of Fe2B without chromium addition, the toughness at 2.1wt.% chromium addition can be improved by above one time, achieving 7.8Mpam1/2, and the result was also qualitatively testified by the micro-cracks in Fe2B based on scanning electron microscope micrographs.
Improving fracture toughness and hardness of Fe2B in high boron white cast iron by chromium addition
AbstractThe effect of chromium containing 0%, 0.49%, 1.02%, 2.1%, 3.2% (in wt.%) on the morphology, fracture toughness and micro-hardness property of Fe2B in high boron white cast iron was investigated. The results indicated that, with an increase of chromium addition, the morphology of Fe2B becomes larger and changes from the block to rod shape, its micro-hardness increases and the fracture toughness increases first and then decreases. Compared with the fracture toughness (3.8MPam1/2) of Fe2B without chromium addition, the toughness at 2.1wt.% chromium addition can be improved by above one time, achieving 7.8Mpam1/2, and the result was also qualitatively testified by the micro-cracks in Fe2B based on scanning electron microscope micrographs.
Improving fracture toughness and hardness of Fe2B in high boron white cast iron by chromium addition
Huang, Zhifu (author) / Xing, Jiandong (author) / Guo, Cheng (author)
2010-01-06
6 pages
Article (Journal)
Electronic Resource
English
Improving fracture toughness and hardness of Fe2B in high boron white cast iron by chromium addition
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