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Failed Champy impact tests
Why the tempering does not bring the impact properties up at the thinner section? Using slow quench method may not be good, as the thick position still need a high strength. Can you give me an example of how thinner sction can be insulated? Many thanks- tio21122
- Post #7
- Forum: Metal and Metallurgy engineering
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Failed Champy impact tests
It is a complex shape compoment with thick and thin section al together. I can not put them into two quenching media. thanks- tio21122
- Post #5
- Forum: Metal and Metallurgy engineering
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Failed Champy impact tests
the tests were carried out at -30C, required 40J, but get 22J,25J,28J. It seems not far. In the thick positions results are so good as: 200J, 204J, and 218J.- tio21122
- Post #3
- Forum: Metal and Metallurgy engineering
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Failed Champy impact tests
I have some engineering componments made of low carbon low alloy steels (0.13%C,0.25Si, 1.1Mn,0.6Ni,0.15Cr) The materials are cutted from forged bar and machined into different size and shape. This is followed by heat treatments of normalising, austenlising(940C), water quenching and tempering...- tio21122
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- Replies: 13
- Forum: Metal and Metallurgy engineering
