固溶处理对NbTiZr合金微观组织与力学性能的影响
|
摘要
采用粉末冶金方法制备了50Nb-20Ti-Zr(mass%)合金,并研究了固溶处理对其组织和性能的影响。结果表明:当固溶时间为6 h时,该合金的典型组织是以条幅分解为基础的片层状组织,并且随固溶温度的升高,晶界无析出带现象越明显,合金的弹性模量没有明显的变化,但其断裂强度有所下降;当固溶时间为18 h时,随固溶温度的升高,合金的组织呈现出"片层状-球化-针片状-等轴化"的演化过程,合金的弹性模量与断裂强度均逐渐增加。合金的断口形貌是由塑性韧窝、河流花样和平行分布的准解理小刻面组成,属于韧性断裂和脆性断裂组合的混合型断裂。
50Nb-20Ti-Zr(mass%) alloy was prepared by powder metallurgy and the effect of solution treatment on its microstructure and properties was studied. The results show that when the solution time is 6 h, the typical microstructure of the alloy is lamellar structure based on the spinodal composition, and with the increase of the solution temperature, the phenomenon of no precipitation zone at grain boundaries becomes more obvious, and the elastic modulus of the alloy does not change obviously, but its fracture strength decreases. When the solution time is 18 h, with the increase of the solution temperature, the microstructure of the alloy shows the evolution process of "Lamellar-spheroidization-needleization-equalization", and the elastic modulus and fracture strength of the alloy increase gradually. The fracture morphology of the alloy is composed of plastic dimples, river patterns and quasi-cleavage facets with parallel distribution, indicating the fracture is a mixed ductile-brittle fracture.
50Nb-20Ti-Zr(mass%) alloy was prepared by powder metallurgy and the effect of solution treatment on its microstructure and properties was studied. The results show that when the solution time is 6 h, the typical microstructure of the alloy is lamellar structure based on the spinodal composition, and with the increase of the solution temperature, the phenomenon of no precipitation zone at grain boundaries becomes more obvious, and the elastic modulus of the alloy does not change obviously, but its fracture strength decreases. When the solution time is 18 h, with the increase of the solution temperature, the microstructure of the alloy shows the evolution process of "Lamellar-spheroidization-needleization-equalization", and the elastic modulus and fracture strength of the alloy increase gradually. The fracture morphology of the alloy is composed of plastic dimples, river patterns and quasi-cleavage facets with parallel distribution, indicating the fracture is a mixed ductile-brittle fracture.
引文
[1] Denkhaus E,Salnikow K.Nickel essentiality,toxicity,and carcinogenicity[J].Critical Reviews in Oncology/Hematology,2002,42(1):35-56.
[2] Van Kooten T G,Klein C L,K?hler H,et al.From cytotoxicity to biocompatibility testing in vitro:cell adhesion molecule expression defines a new set of parameters[J].Journal of Materials Science Materials in Medicine,1997,8(12):835-841.
[3] 于思荣.金属系牙科材料的应用现状及部分元素的毒副作用[J].金属功能材料,2000,7(1):2-7.WANG Si-rong.The present status of application of dental metallic materials and the cytotoxicity of some element[J].Metallic Functional Materials,2000,7(1):2-7.
[4] 卿茂盛,李全.骨科应力遮挡的研究进展[J].中国骨伤,2003,16(1):61-62.QING Mao-sheng,LI Quan.Advance of studies on stress shielding in orthopaedics[J].China Journal of Orthopaedics and Traumatology,2003,16(1):61-62.
[5] 熊建义,欧阳建安,王大平,等.多孔铌基生物材料的制备及其性能研究[J].中国临床解剖学杂志,2013,31(1):89-94.XIONG Jian-yi,OUYANG Jian-an,WANG Da-ping,et al.Fabrication of niobium-based biological materials via impregnation and its propertied[J].Chinese Journal of Clinical Anatomy,2013,31(1):89-94.
[6] Takashi S,Tadahiko F,Jung-Hwan H,et al.Multifunctional alloys obtained via a dislocation-free plastic deformation mechanism[J].Science,2003,300(5618):464-467.
[7] 郭翠萍,訾建玲,李长荣,等.Zr-Nb合金调幅分解组织的研究[J].稀有金属,2017,41(6):672-677.GUO Cui-ping,ZI Jian-ling,LI Chang-rong,et al.Spinodal decomposition microstructure in Zr-Nb alloys[J].Chinese Journal of Rare Metals,2017,41(6):672-677.
[8] 郭军,金头男,赵永庆,等.Ti-1300合金中β/β晶界区β→α相变晶体学特征的EBSD分析[J].稀有金属材料与工程,2017,46(4):979-984.GUO Jun,JIN Tou-nan,ZHAO Yong-qing,et al.Crystallographic characteristics of β→α phase transformation at β grain boundaries in Ti-1300 alloy[J].Rare Metal Materials and Engineering,2017,46(4):979-984.
[9] 张保亮.Fe-Mo合金调幅分解的微观相场模拟[D].哈尔滨:哈尔滨工业大学,2006.ZHANG Bao-liang.The computer simulation of the Fe-Mo binary alloy spinodal decomposition with microscopic phase-field model[D].Harbin:Harbin Institute of Technology,2006.
[10] 陈大钦,李世晨,郑子樵,等.应力场对相分解过程影响的计算机模拟研究(I)——模型描述及对称成分下的相分离模拟[J].稀有金属材料与工程,2005,34(8):1200-1204.CHEN Da-qin,LI Shi-chen,ZHENG Zi-qiao,et al.Effect of stress field on phase separation process by computer simulation (I):Model description and simulation of symmetrical composition phase separation process[J].Rare Metal Materials and Engineering,2005,34(8):1200-1204.
[11] 石志峰.TC21钛合金工艺优化及组织性能关系研究[D].西安:西北工业大学,2016.SHI Zhi-feng.Researches on processing optimization and microstructure-property relationship of TC21 titanium alloy[D].Xi’an:Northwestern Polytechnical University,2016.
[12] 李晶晶,田常海,汪越胜.U71Mn和U75V钢轨钢疲劳短裂纹的扩展行为[J].钢铁研究学报,2006,18(4):37-40.LI Jing-jing,TIAN Chang-hai,WANG Yue-sheng.Propagation of short fatigue crack in U71Mn and U75V rail steels[J].Journal of Iron and Steel Research,2006,18(4):37-40.
[13] 王时豪.形变-时效组合工艺对Al-Mg-Si合金力学性能及析出相微观组织结构的影响[D].长沙:湖南大学,2014.WANG Shi-hao.The mechanical properties and precipitate microstructures of Al-Mg-Si alloys processed by combined deformation and ageing[D].Changsha:Hunan University,2014.
[14] 阮建明,黄培云.粉末冶金原理[M].北京:机械工业出版社,2012.
[15] 王从曾.材料性能学[M].北京:北京工业大学出版社,2001.Effect of solution treatment on microstructure and mechanical properties of NbTiZr alloy RUAN Jian-ming, ZHANG Tao-mei, ZHANG Qi, WANG Bao-qi, YANG Hai-lin(50)
[2] Van Kooten T G,Klein C L,K?hler H,et al.From cytotoxicity to biocompatibility testing in vitro:cell adhesion molecule expression defines a new set of parameters[J].Journal of Materials Science Materials in Medicine,1997,8(12):835-841.
[3] 于思荣.金属系牙科材料的应用现状及部分元素的毒副作用[J].金属功能材料,2000,7(1):2-7.WANG Si-rong.The present status of application of dental metallic materials and the cytotoxicity of some element[J].Metallic Functional Materials,2000,7(1):2-7.
[4] 卿茂盛,李全.骨科应力遮挡的研究进展[J].中国骨伤,2003,16(1):61-62.QING Mao-sheng,LI Quan.Advance of studies on stress shielding in orthopaedics[J].China Journal of Orthopaedics and Traumatology,2003,16(1):61-62.
[5] 熊建义,欧阳建安,王大平,等.多孔铌基生物材料的制备及其性能研究[J].中国临床解剖学杂志,2013,31(1):89-94.XIONG Jian-yi,OUYANG Jian-an,WANG Da-ping,et al.Fabrication of niobium-based biological materials via impregnation and its propertied[J].Chinese Journal of Clinical Anatomy,2013,31(1):89-94.
[6] Takashi S,Tadahiko F,Jung-Hwan H,et al.Multifunctional alloys obtained via a dislocation-free plastic deformation mechanism[J].Science,2003,300(5618):464-467.
[7] 郭翠萍,訾建玲,李长荣,等.Zr-Nb合金调幅分解组织的研究[J].稀有金属,2017,41(6):672-677.GUO Cui-ping,ZI Jian-ling,LI Chang-rong,et al.Spinodal decomposition microstructure in Zr-Nb alloys[J].Chinese Journal of Rare Metals,2017,41(6):672-677.
[8] 郭军,金头男,赵永庆,等.Ti-1300合金中β/β晶界区β→α相变晶体学特征的EBSD分析[J].稀有金属材料与工程,2017,46(4):979-984.GUO Jun,JIN Tou-nan,ZHAO Yong-qing,et al.Crystallographic characteristics of β→α phase transformation at β grain boundaries in Ti-1300 alloy[J].Rare Metal Materials and Engineering,2017,46(4):979-984.
[9] 张保亮.Fe-Mo合金调幅分解的微观相场模拟[D].哈尔滨:哈尔滨工业大学,2006.ZHANG Bao-liang.The computer simulation of the Fe-Mo binary alloy spinodal decomposition with microscopic phase-field model[D].Harbin:Harbin Institute of Technology,2006.
[10] 陈大钦,李世晨,郑子樵,等.应力场对相分解过程影响的计算机模拟研究(I)——模型描述及对称成分下的相分离模拟[J].稀有金属材料与工程,2005,34(8):1200-1204.CHEN Da-qin,LI Shi-chen,ZHENG Zi-qiao,et al.Effect of stress field on phase separation process by computer simulation (I):Model description and simulation of symmetrical composition phase separation process[J].Rare Metal Materials and Engineering,2005,34(8):1200-1204.
[11] 石志峰.TC21钛合金工艺优化及组织性能关系研究[D].西安:西北工业大学,2016.SHI Zhi-feng.Researches on processing optimization and microstructure-property relationship of TC21 titanium alloy[D].Xi’an:Northwestern Polytechnical University,2016.
[12] 李晶晶,田常海,汪越胜.U71Mn和U75V钢轨钢疲劳短裂纹的扩展行为[J].钢铁研究学报,2006,18(4):37-40.LI Jing-jing,TIAN Chang-hai,WANG Yue-sheng.Propagation of short fatigue crack in U71Mn and U75V rail steels[J].Journal of Iron and Steel Research,2006,18(4):37-40.
[13] 王时豪.形变-时效组合工艺对Al-Mg-Si合金力学性能及析出相微观组织结构的影响[D].长沙:湖南大学,2014.WANG Shi-hao.The mechanical properties and precipitate microstructures of Al-Mg-Si alloys processed by combined deformation and ageing[D].Changsha:Hunan University,2014.
[14] 阮建明,黄培云.粉末冶金原理[M].北京:机械工业出版社,2012.
[15] 王从曾.材料性能学[M].北京:北京工业大学出版社,2001.Effect of solution treatment on microstructure and mechanical properties of NbTiZr alloy RUAN Jian-ming, ZHANG Tao-mei, ZHANG Qi, WANG Bao-qi, YANG Hai-lin(50)