【摘要】：為了明確熱HCP馬氏體對CoAl和CoNi合金形狀記憶效應的作用,研究CoAl和CoNi合金形狀記憶效應(SME)與應力誘發(fā)馬氏體和熱HCP馬氏體之間的關(guān)系。采用原位金相觀察合金深冷前后熱誘發(fā)馬氏體的變化,并研究其對應力誘發(fā)馬氏體和形狀記憶效應的影響。結(jié)果表明,CoAl和CoNi合金的形狀記憶效應都來源于應力誘發(fā)HCP馬氏體,熱馬氏體對兩者形狀記憶效應的貢獻都是強化基體。CoAl合金形狀記憶效應高于CoNi合金的原因是Al原子對基體更強的固溶強化作用導致CoAl合金基體強度高于CoNi合金強度。
[Abstract]:In order to clarify the effect of hot HCP martensite on shape memory effect in CoAl and CoNi alloys, the relationship between the shape memory effect (SME) and stress-induced martensite and thermal HCP martensite in CoAl and CoNi alloys was studied. In situ metallography was used to observe the changes of thermal induced martensite before and after cryogenic, and to study the effect of the corresponding force on the effect of martensite and shape memory. The results show that the shape memory effect of both CoAl and CoNi alloys originates from stress-induced HCP martensite. The contribution of hot martensite to the shape memory effect of both alloys is the strengthening of matrix. The reason that the shape memory effect of CoAl alloy is higher than that of CoNi alloy is that the matrix strength of CoAl alloy is higher than that of CoNi alloy due to the stronger solution strengthening effect of Al atom on the matrix.
【作者單位】： 四川大學制造科學與工程學院;
【基金】：Projects(51171123,51271128)supported by the National Natural Science Foundation of China
【分類號】：TG139.6

【參考文獻】

相關(guān)期刊論文 前1條

1 張成燕;宋帆;王珊玲;彭華備;文玉華;;Mn含量對Fe-Mn-Si-Cr-Ni合金記憶效應的影響機制[J];金屬學報;2015年02期

【共引文獻】

相關(guān)期刊論文 前2條

1 吳冰潔;楊瀟;彭華備;文玉華;;熱誘發(fā)馬氏體對CoAl和CoNi合金形狀記憶效應的作用（英文）[J];Transactions of Nonferrous Metals Society of China;2017年02期

2 林成新;徐凱池;張佳琪;;Fe-Mn-Si基形狀記憶合金記憶效應的研究現(xiàn)狀[J];材料保護;2016年S1期

【二級參考文獻】

相關(guān)期刊論文 前1條

1 戎利建，平德海，，李依依，師昌緒;Fe－Mn－Si－Cr－Ni記憶合金形變組織的TEM研究[J];金屬學報;1995年09期

【相似文獻】

相關(guān)期刊論文 前1條

1 胡正飛,吳杏芳,梨秀球,王春旭;高CoNi合金鋼中二次碳化物的析出與轉(zhuǎn)化[J];金屬學報;2001年04期

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