基于振动时效的铌合金圆柱管薄壁件尺寸稳定性优化  

Dimension Stability Optimization of Niobium-based Alloy Thin Column Part with Vibration Stress Relief Technology

作　　者：黄鹏[1] 钱胜[1] 陈德华 唐胜江[1] 熊雪峰[1] Huang Peng;Qian Sheng;Chen Dehua;Tang Shengjiang;Xiong Xuefeng(Institute of Materials,China Academy of Engineering Physics,Mian-yang,Sichuan 621907,China;不详)

机构地区：[1]中国工程物理研究院材料研究所,四川省绵阳市621907

出　　处：《工具技术》2022年第7期113-115,共3页Tool Engineering

基　　金：表面物理与化学重点实验室学科发展基金(XKFZ201907)。

摘　　要：铌合金材料在航天等领域具有非常重要的应用前景,但由于其弹性模量相对较低,导致铌合金圆柱管薄壁件产品在铸造、热处理和机械加工过程中会产生一定的内应力,内部残余应力对其加工和使用过程中的尺寸稳定性都有较大的负面影响。基于振动时效技术对铌合金圆柱管薄壁件进行振动时效处理,结合有限元仿真技术对振动时效工艺方案进行优化试验,结果表明,振动时效技术可以有效保证铌合金圆柱管薄壁件尺寸的稳定性,本研究可以为铌合金薄壁件在航天等领域应用提供参考。Nb-based alloy has been widely used in the aerospace areas because of its excellent properties.However, its un-stability and low young′s modulus lead to large internal stress during the molding, heat treatment and mechanical manufacturing of thin column parts.The residual stress will bring adverse effects on the dimension stability of niobium-based alloy thin column parts.An optimization method to enhance the dimension stability with the vibration stress relief(VSR) method is proposed.The technical parameters of VSR process are optimized based on the finite element simulation.The experimental results prove the availability of VSR method on the dimension stability optimization of niobium-based alloy thin column parts, and can provide a good way for the application of niobium-based alloy thin column parts in the aerospace areas.

关 键 词：铌合金 薄壁件 振动时效 尺寸稳定性 

分 类 号：TG146.416[一般工业技术—材料科学与工程] TH113.1[金属学及工艺—金属材料]