碳对烧结态和淬火态钛铌合金物相组成与压缩性能的影响
Effects of Carbon on Phases and Compressive Properties of Sintered and Quenched TiNb Alloys
摘 要
采用X射线衍射仪和材料试验机研究了碳对烧结态和淬火态钛铌合金的物相组成和压缩性能的影响。结果表明: 两种烧结态合金的组织均由α相和β相组成, 但含碳合金中β相数量多, 导致其弹性模量较小, 屈服强度较大;两种淬火态合金的显微组织均由α″和βM两相组成, 其弹性模量和压缩屈服强度均比相同成分烧结态合金的小;与淬火态不含碳合金相比;淬火态含碳合金中含有较多低强度的β亚相, 故其弹性模量和屈服强度均较小。
弹性模量
屈服强度
物相
TiNb alloy
elastic modulus
yield strength
phase
Abstract
The effects of carbon on phase and compressive properties of sintered and quenched TiNb alloys were studied by using X-ray diffraction and materials testing, respectively.The results show that the microstructure of the two sintered alloys consisted of α and β phases, but the sintered Ti-35.4Nb-0.05C alloy contained more β phase, and thus resulted it owning lower elastic modulus and higher yield strength. The microstructure of the two quenched alloys consisted of α″ and βM phases, and comparing with the sintered alloys, the quenched alloys owned lower elastic modules and yield strength. Comparing with the quenched alloy without carbon, the quenched alloy with carbon had lower elastic modules and yield strength for more low-strength β亚 phase in it.
中图分类号 TH142.3
所属栏目 材料性能及其应用
基金项目 江苏青蓝工程资助项目;江苏省高校科研成果产业化推进项目(JHZD2012-48);苏州市科技计划项目(SGZ2012058);苏州市职业大学校级项目(2011SZDYJ10, 2012SZDYY01, JDX1003)
收稿日期 2012/9/25
修改稿日期 2013/6/21
网络出版日期
作者单位点击查看
备注顾苏怡(1978-), 女, 江苏苏州人, 讲师, 硕士。
引用该论文: GU Su-yi,DU Jie,YAN Yong-jian,YANG Hong,ZHOU Zheng-cun. Effects of Carbon on Phases and Compressive Properties of Sintered and Quenched TiNb Alloys[J]. Materials for mechancial engineering, 2013, 37(9): 42～44
顾苏怡,杜洁,严勇健,杨洪,周正存. 碳对烧结态和淬火态钛铌合金物相组成与压缩性能的影响[J]. 机械工程材料, 2013, 37(9): 42～44
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【9】KIM H Y, SATORU H, KIM J I, et al. Mechanical properties and shape memory behavior of Ti-Nb alloys[J].Mater Trans, 2004, 45: 2443-2448.
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