金属学报  1985, Vol. 21 Issue (4): 27-150

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铌基弹性合金Nb-40Ti-5.5Al的组织结构

黄特伟

冶金工业部钢铁研究总院

CONSTITUTION OF ELASTIC Nb-BASE ALLOY Nb-40Ti-5.5Al

HUANG Tewei Central Iron and Steel Research Institute;Ministry of Metallurgical Industry;Beijing

黄特伟. 铌基弹性合金Nb-40Ti-5.5Al的组织结构[J]. 金属学报, 1985, 21(4): 27-150.
. CONSTITUTION OF ELASTIC Nb-BASE ALLOY Nb-40Ti-5.5Al[J]. Acta Metall Sin, 1985, 21(4): 27-150.

摘要 参考文献 相关文章 Metrics 全文: PDF(2999 KB)   摘要: 本文用金相、电镜、电解分离及X射线相分析、金属薄膜电子衍射等方法,研究了铌基弹性合金Nb-40Ti-5.5Al的组织结构,及其对性能的影响.试验结果如下:该合金铸态为单相固溶体.冷加工70%后,≤400℃保温1h热处理,组织结构及性能皆无明显变化.在550—700℃之间热处1h,出现明显的时效硬化峰.1000℃,1h处理后,为完全再结晶的固溶体组织.再经650—750℃等温处理亦产生时效硬化.晶内析出的强化相为(Nb,Ti)_3Al.650℃等温时效过程出现较明显的晶界沉淀特征.应力促进相析出.时效态合金可出现回归现象. Abstract：The constitution and its effect on properties of elastic Nb-base alloy Nb-40Ti-5.5Al were examined by means of metallography,electron microscopy,X-ray dif-fraction analysis of chemically extracted phases and electron diffraction of thinfoil.The results showed that the heat treating temperature dependence of consti-tution of the alloy indicated as follows:annealing at≤400℃ for 1 h after cold-rolled with 70% reduction,no marked change is revealed;heat treating between550—700℃ for 1 h,an age-hardening peak is noted;annealing at 1000℃ for 1h,the fully recrystallized solid solution is detected;further isothermal annealingat 650—750℃,the age-hardening and the precipitation of strengthening phase as(Nb,Ti)_3Al in the grains are obtained;and during isothermal aging at 650℃,thegrain boundary precipitation is characterized obviously.The internal stress in thealloy facilitates the phase precipitation.The post age-hardening tempering maycause the return phenomenon. 收稿日期: 1985-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 黄特伟 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I4/27 1 #12 2 黄特伟等,弹性铌合金的性能和应用,《航空测试技术》,1982,№.1 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed