您要查找的是不是：
- The mechanism,the experimental equipment and the metallographic analysis of high frequency VSR were researched. 主要研究内容包括:高频激振时效的机理,高频激振时效装置以及高频激振时效结果的金相分析。
- By the theory of metallographic analysis and SEM, it is a new means to appraise the metal disjunction of identity of judicature evidence. 利用金相分析理论,结合扫描电子显微镜,对司法物证中金属分物的同一性鉴定,是一种简便、快速、准确的新方法。
- By the fracture analysis and metallographic analysis, we obtained the spall fracture mechanism at different strain rate. 对回收的样品进行了断口分析和金相分析,从宏微观角度分析了无钴合金在不同应变率下的断裂机制。
- The fracture reasons of fastening bolts are analyzed using fractography, metallographic analysis and hardness testing in this paper. 一根用来紧固节段式水泵的穿缸螺栓仅服役3个月便产生断裂。
- Metallographic analysis,tension test,fatigue test and SEM analysis were conducted on the TA15 titanium alloy welded joint. 对TA15钛合金板材电子束焊接试样进行了金相分析和静力试验、疲劳试验和扫描电镜(SEM)分析。
- Stress Corrosion Cracking of polythionic acids(PSCC) of 304 SS were investigated by SSRT,SEM and metallographic analysis. 通过对隔板的检查和分析,判断隔板断裂属于连多硫酸引起的应力腐蚀开裂。
- The failure of the spindle half-coupling on the bloomer has been analysed by many methods, such as chemical analysis, mechanical property analysis and metallographic analysis. 摘要利用化学分析、力学性能分析及金相分析等手段，对初轧机接轴半联轴节失效原因进行了分析。
- Based on the test result of final reduction gear, the causes of failure were brought out by physics-chemical analysis and metallographic analysis on the parts tested. 摘要根据某厂生产的主减速器总成试验结果，通过对失效样品进行理化和金相组织分析，找出了试验样品的失效原因。
- The metallographic analysis shows that the metallurgical structure is proper.The results of internal pressure test indicate that the hot tap structure can work safely. 对间断焊焊接接头的金相分析表明其金相组织正常,内压试验结果表明该结构能安全运行。
- Have been mechanical property testing, metallographic analysis, process performance testing, elemental analysis, eddy current inspection and testing methods. 已具备力学性能测试、金相分析、工艺性能测试、元素分析、涡流探伤等一整套检验检测的方法。
- The single-sided fish defects of KFC copper alloys applied to lead frame produced by domestic corporation were studied and analyzed by energy spectrum analysis, SEM and metallographic analysis. 对国内某企业采用半连续铸造生产的KFC引线框架带材表面鱼鳞状缺陷进行了分析和研究。
- The hot austenite grain distribution and the phase composition at normal temperature were obtained with the aid of metallographic analysis method after the rolled workpieces were divided at the specified position on the linear cutting machine. 对轧后工件进行指定位置线切割取样，并用金相分析法得到变形后工件的高温奥氏体晶粒尺寸分布及低温相组成。
- The cracks on blades made of a directionally solidified superalloy were analyzed.The failure mode and cause were studied in virtue of fracture observation and metallographic analysis. 对定向凝固合金叶片的裂纹进行分析,在断口观察与金相组织分析的基础上,对叶片的失效模式与失效原因进行研究,并提出预防该类故障发生的措施。
- The quantitative metallographic analysis shown that there was a very well relationship between the grain density after recrystallization and the precipitated partical density after overaging. 定量金相测试结果表明，再结晶后的晶粒密度和过时效的析出 相质密度存在着良好的对应关系。
- The impact of globalizafion of pearlite on material performance can be determined by the chemical and metallographic analysis of piping joints at inlet and outlet of distillation visbreaking tower. 通过对某蒸馏减粘反应塔出入管线端节的化学成分和材质金相组织的分析,得出了珠光体的球化对材质性能的影响情况。
- The corrosion behavior of the welding seam of Q235 steel jointed by J420 electrode in ammonium sulfite solution was studied,adopting electrochemical method and metallographic analysis. 针对Q235钢焊缝在亚硫酸铵介质中腐蚀严重的实际,采用三电极电化学研究法和金相组织分析法研究了J420焊条焊接Q235钢的焊缝在亚硫酸铵介质中的腐蚀行为。
- The fracture reasons of the shaft which served in feed pump about 10 days are analyzed using fractography, metallographic analysis, composition analysis and strength testing in this paper. 摘要采用断口分析、金相检验、力学性能侧试和化学成分分析等方法，对服役10多天便发生断裂的给水泵轴进行了失效分析。
- Metallographic analyses show that the ultrasonic welding significantly refines the grains with more acicular ferrite appears in the fusion zone. 金相分析表明，在电弧超声作用下，焊缝结晶组织明显细化，焊缝区针状铁索体增加。
- The causes of the wearable zone dropout were analyzed by the metallography analysis and SEM. 采用金相分析和扫描电镜分析方法,分析了钻杆接头喷焊耐磨带脱落原因。
- Through metallographic analyses , it was found that there was a big difference between the two welding seam texture shapes, the first welding seam basically was acerose or feathery austenite, and the second was crumby austenite. 通过金相分析,发现两道焊缝组织形态区别很大,第1道焊缝基本为针片状或羽毛状奥氏体,第2道焊缝却成团块状奥氏体。
