自由锻Ti?Ni形状记忆合金的显微组织和超弹性
采用放电等离子烧结(SPS)法将元素钛粉和镍粉制备成 Ti-51%Ni 形状记忆合金(SMAs).研究目的是采用自由锻二次加工以提高SPS合金的性能.对自由锻前后合金的显微组织、相变温度和超弹性进行比较.结果表明,自由锻可以显著提高Ti-Ni 形状记忆合金的拉伸强度和形状记忆性能,自由锻后合金的韧性从6.8% 提高到了9.2%,超弹性的应变范围从5%增加到7.5%,应变恢复速率从72%提高到92%.Ti-51%Ni合金显微组织中含有立方奥氏体相(B2)基体、单斜马氏体相 (B19′)、第二相(Ti3Ni4,Ti2Ni 和 TiNi3) 和氧化物相(Ti4Ni2O,Ti3O5).自由锻后再经50...
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Veröffentlicht in: | 中国有色金属学报(英文版) 2018, Vol.28 (3), p.502-514 |
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creator | Abdollah BAHADOR Esah HAMZAH Katsuyoshi KONDOH Tuty ASMA ABUBAKAR Farazila YUSOF Junko UMEDA Safaa N. SAUD Mustafa K. IBRAHIM |
description | 采用放电等离子烧结(SPS)法将元素钛粉和镍粉制备成 Ti-51%Ni 形状记忆合金(SMAs).研究目的是采用自由锻二次加工以提高SPS合金的性能.对自由锻前后合金的显微组织、相变温度和超弹性进行比较.结果表明,自由锻可以显著提高Ti-Ni 形状记忆合金的拉伸强度和形状记忆性能,自由锻后合金的韧性从6.8% 提高到了9.2%,超弹性的应变范围从5%增加到7.5%,应变恢复速率从72%提高到92%.Ti-51%Ni合金显微组织中含有立方奥氏体相(B2)基体、单斜马氏体相 (B19′)、第二相(Ti3Ni4,Ti2Ni 和 TiNi3) 和氧化物相(Ti4Ni2O,Ti3O5).自由锻后再经500 ℃时效处理的最终样品的马氏体相变温度向高温方向偏移,这是由于Ti3Ni4相(透射电镜下可以观察到)的析出而导致基体中Ni含量的减少.总之,自由锻可以提高Ti-51%Ni形状记忆合金的超弹性和力学性能. |
doi_str_mv | 10.1016/S1003-6326(18)64683-7 |
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IBRAHIM</creatorcontrib><title>自由锻Ti?Ni形状记忆合金的显微组织和超弹性</title><title>中国有色金属学报(英文版)</title><description>采用放电等离子烧结(SPS)法将元素钛粉和镍粉制备成 Ti-51%Ni 形状记忆合金(SMAs).研究目的是采用自由锻二次加工以提高SPS合金的性能.对自由锻前后合金的显微组织、相变温度和超弹性进行比较.结果表明,自由锻可以显著提高Ti-Ni 形状记忆合金的拉伸强度和形状记忆性能,自由锻后合金的韧性从6.8% 提高到了9.2%,超弹性的应变范围从5%增加到7.5%,应变恢复速率从72%提高到92%.Ti-51%Ni合金显微组织中含有立方奥氏体相(B2)基体、单斜马氏体相 (B19′)、第二相(Ti3Ni4,Ti2Ni 和 TiNi3) 和氧化物相(Ti4Ni2O,Ti3O5).自由锻后再经500 ℃时效处理的最终样品的马氏体相变温度向高温方向偏移,这是由于Ti3Ni4相(透射电镜下可以观察到)的析出而导致基体中Ni含量的减少.总之,自由锻可以提高Ti-51%Ni形状记忆合金的超弹性和力学性能.</description><issn>1003-6326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpjYJA1NNAzNDA00w82NDAw1jUzNjLTMLTQNDMxszDWNWdh4IQLczDwFhdnJhkYGpqYGlgaGnIyWL9oX_V8ysaXU3aHZNr7ZT7du-h517YX6zY83d_2dELHy_aJz2e1PJux7-m-dc93tzzf3f50Us-Lba1P9-x81rCch4E1LTGnOJUXSnMzaLu5hjh76JYn5qUl5qXHZ-WXFuUBZeKr0iuLs4orkuJTjQwMLQyMDQyNjElTDQC-C1Zf</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>Abdollah BAHADOR</creator><creator>Esah HAMZAH</creator><creator>Katsuyoshi KONDOH</creator><creator>Tuty ASMA ABUBAKAR</creator><creator>Farazila YUSOF</creator><creator>Junko UMEDA</creator><creator>Safaa N. 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IBRAHIM</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>自由锻Ti?Ni形状记忆合金的显微组织和超弹性</atitle><jtitle>中国有色金属学报(英文版)</jtitle><date>2018</date><risdate>2018</risdate><volume>28</volume><issue>3</issue><spage>502</spage><epage>514</epage><pages>502-514</pages><issn>1003-6326</issn><abstract>采用放电等离子烧结(SPS)法将元素钛粉和镍粉制备成 Ti-51%Ni 形状记忆合金(SMAs).研究目的是采用自由锻二次加工以提高SPS合金的性能.对自由锻前后合金的显微组织、相变温度和超弹性进行比较.结果表明,自由锻可以显著提高Ti-Ni 形状记忆合金的拉伸强度和形状记忆性能,自由锻后合金的韧性从6.8% 提高到了9.2%,超弹性的应变范围从5%增加到7.5%,应变恢复速率从72%提高到92%.Ti-51%Ni合金显微组织中含有立方奥氏体相(B2)基体、单斜马氏体相 (B19′)、第二相(Ti3Ni4,Ti2Ni 和 TiNi3) 和氧化物相(Ti4Ni2O,Ti3O5).自由锻后再经500 ℃时效处理的最终样品的马氏体相变温度向高温方向偏移,这是由于Ti3Ni4相(透射电镜下可以观察到)的析出而导致基体中Ni含量的减少.总之,自由锻可以提高Ti-51%Ni形状记忆合金的超弹性和力学性能.</abstract><pub>Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia%JWRI, Osaka University, 11-1 Mihogaoka, Ibaraki, 567-0047 Osaka, Japan%Department of Mechanical Engineering, Faculty of Engineering,University of Malaya, 50603 Kuala Lumpur, Malaysia%Faculty of Information Science and Engineering, Management and Science University, 40100 Shah Alam, Malaysia</pub><doi>10.1016/S1003-6326(18)64683-7</doi></addata></record> |
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title | 自由锻Ti?Ni形状记忆合金的显微组织和超弹性 |
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