通过金相技术、力学性能试验和SEM技术研究了6061-T6铝合金真空电子束焊接接头的金相组织、力学性能和断口形貌特征。
The metallurgical structures, mechanical properties and fractographs of EB welded 6061-T6 aluminum alloy joint were studied by means of metallography, mechanical test and SEM technology.
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 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.
通过硬度试验、冲击试验、断口扫描和金相组织观察，研究了T92钢焊接接头的韧性与组织的关系。
Through hardness test, impacting test, SEM of failure surface and microstructure observation, the relationship between the toughness and its microstructure of welding joint of T92 steel was studied.
研究了热轧带状组织对双相钢断口形貌、金相组织和钢板力学性能的影响。
The effect of hot rolling banded microstructures on fracture morphology, cold rolling microstructures mechanical properties of the sheet steel has been investigated.
借助光学显微镜、扫描电镜等手段，对用埋铸法生产的T9815气轮机组隔板断裂部位的金相组织特征，宏观和微观断口形貌等进行了研究。
The microstructure characteristics, macro and micro fracture morphology of brittle broken embedded casting closure of T9815 turbines were investigated by means of metallographical examination and SEM.
对定向凝固合金叶片的断裂故障进行了分析，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了研究，并提出了预防该类故障发生的措施。
The fracture of blades made of a directionally solidified superalloy was analyzed. The failure mode and cause were studied in virtue of fracture observation and metallographic structure analysis.
研究了转炉托圈的焊接工艺，结合拉伸试验、冲击试验、断口和金相组织分析，进行了焊接工艺的评定。
The welding process of converter ring was studied. By means of tensile and impact test, fractures and microstructure analysis, the evaluation of the welding process was made.
通过金相分析、微区成份分析、宏观和微观断口分析，主要研究钎焊层和焊鏠区的微观结构及其对复合钢管工艺性能和使用性能的影响。
A study was carried out on the microstructure of interface and welding seam in dual-metal clad steel pipe. And its inferences on technological and service properties were studied.
采用化学成分分析、金相分析、断口扫描电镜及电子探针分析等手段，对4 5钢棒材冷拔断裂的原因进行了分析研究。
The fracture reason of 45 steel bar during cold drawing was analyzed by chemical inspection, metallographic examination, scanning electron fractograph and electron probe analysis.
作者通过改变固溶热处理条件并结合金相组织观察和断口分析研究了强化固溶对提高70 5 5铝合金力学性能的作用。
The effects of promotively solutionizing of soluble remaining constituent phases on the microstructure and mechanical properties of 7055 alloys were studied.
作者通过改变固溶热处理条件并结合金相组织观察和断口分析研究了强化固溶对提高70 5 5铝合金力学性能的作用。
The effects of promotively solutionizing of soluble remaining constituent phases on the microstructure and mechanical properties of 7055 alloys were studied.
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