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.
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