Investigation on Thermoplasticity of Ferrous Shape Memory Alloys
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摘要: 研究了Fe-Mn-Si形狀記憶合金熱塑性。結果表明:合金中硅含量的增加可提高合金的記憶效應,卻嚴重損害合金熱塑性;微量元素Mg的加入可大大改善合金的熱塑性,而不降低記憶效應。由于Mg元素的加入,含Si量達4%的Fe-Mn-Si形狀記憶合金也能順利地熱軋成無縫管,提高了Fe-Mn-Si形狀記憶合金實用性。Abstract: Thermoplasticity of Fe-Mn-Si shape memory alloys has been investigated. The experimental results show that the shape memory effect (SME) increases but thermoplasticity decreases with the increasing of Silicon content in Fe-Mn-Si shape memory alloys. Thermoplasticity of these alloys can be improved apparently but SEM not be devastated by adding of microelement Magnesium, because of thermoplasticity being improved by adding of microelement Magnesium.Fe-Mn-Si alloys with 4% Silicon content can be rolled successfully to be seamless steel pipes. So Fe-Mn-Si shape memory alloys show a good applied prospect.
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Key words:
- ferrous shape memory alloys /
- thermioplasticity /
- seamless steel pipe
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