化工自动化及仪表
化工自動化及儀錶
화공자동화급의표
CONTROL AND INSTRUMENTS IN CHEMICAL INDUSTRY
2014年
6期
711-714
,共4页
铝合金%拉伸过程%声发射%特征参数%对应关系
鋁閤金%拉伸過程%聲髮射%特徵參數%對應關繫
려합금%랍신과정%성발사%특정삼수%대응관계
aluminum alloy%tensile process%acoustic emission%feature parameter%corresponding relationship
以高强度硬铝LY12为研究对象，利用声发射试验系统研究拉伸铝合金试件在弹性、屈服、塑性变形和断裂阶段的声发射信号特征，揭示了试件状态与声发射信号特征间的关系。同时对保压和重复加载典型工况进行独立试验，分析不同工况下声发射信号的规律。试验结果表明：LY12铝合金试件状态与声发射信号特征之间存在着良好的对应关系。
以高彊度硬鋁LY12為研究對象，利用聲髮射試驗繫統研究拉伸鋁閤金試件在彈性、屈服、塑性變形和斷裂階段的聲髮射信號特徵，揭示瞭試件狀態與聲髮射信號特徵間的關繫。同時對保壓和重複加載典型工況進行獨立試驗，分析不同工況下聲髮射信號的規律。試驗結果錶明：LY12鋁閤金試件狀態與聲髮射信號特徵之間存在著良好的對應關繫。
이고강도경려LY12위연구대상，이용성발사시험계통연구랍신려합금시건재탄성、굴복、소성변형화단렬계단적성발사신호특정，게시료시건상태여성발사신호특정간적관계。동시대보압화중복가재전형공황진행독립시험，분석불동공황하성발사신호적규률。시험결과표명：LY12려합금시건상태여성발사신호특정지간존재착량호적대응관계。
Taking LY12 duralumin with high strength as the research object , the acoustic emission testing sys-tem was employed to investigate acoustic emission signal feature of the tensile aluminum alloy specimen in elas -tic, yield, plastic deformation and fracture stages so that the relationship between specimen and acoustic emis -sion signal feature can be found; meanwhile , the independent experiment on the operating conditions of the pressure-maintaining and the repeated load was implemented and the laws of acoustic emission signal with dif -ferent working conditions were analyzed .The test results show that good corresponding relationship between LY12 aluminum alloy specimen and acoustic emission signal feature can be found .
