Examining microstructure of industrial brass blanks with purpose for quality control in respect of defects of technological origin

[摘要] The microstructure of industrial blanks made of brass L63 and L68 was examined for quality control. Exogenous inclusions and pores in the microstructure of blanks were found. The microstructure was examined by means of traditional metallographic analysis methods. The authors investigated the transition from exogenous inclusions and pores, which were not removed at the initial processing stage, to the crack, which leads to billet destruction at one of the last processing stages. A conclusion was made about the need for quality control brass blanks by metallographic method. Without quality control it is impossible to provide guarantee of reliable operation of machines and responsible purpose constructions.

[发布机构] FSAEI of HE Ural Federal University, Russia B.N. Yeltsin, 19 Mira St., Ekaterinburg; 620002, Russia^1

[效力级别] 电工学

[关键词] Metallographic analysis;Metallographic method;Processing stage;Reliable operation