Metallographic corrosive agent for 800H alloy welded joint sample, preparation method and metallographic display method

The invention discloses a metallographic corrosive agent for an 800H alloy welded joint sample, a preparation method and a metallographic display method, and belongs to the field of metal material metallography. According to the metallographic corrosive agent for the 800H alloy welded joint sample,...

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Hauptverfasser: TANG LIYING, LIU XUEFENG, LI JI, WANG BOHAN, HOU SHUFANG, HE XIAODONG, NING NA, ZHOU RONGCAN, LI JIANG, SHI ZHIGANG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a metallographic corrosive agent for an 800H alloy welded joint sample, a preparation method and a metallographic display method, and belongs to the field of metal material metallography. According to the metallographic corrosive agent for the 800H alloy welded joint sample, the preparation method and the metallographic display method, the metallographic display method has the advantages of being simple, effective, stable, reliable and the like, and metallographic structures of a base metal area, a fusion area and a weld joint area of an 800H welded joint can be clearly displayed at the same time; according to the corrosive agent, 4g of CuCl2. 2H2O, 3g of FeCl3. 6H2O, 25ml of hydrochloric acid and 15ml of nitric acid are dissolved in every 80 to 150ml of ethanol; the synergistic effect of hydrochloric acid and nitric acid in a specific proportion is used for corroding matrix gamma phases of a base metal area, a fusion area and a weld joint area of the 800H alloy welded joint, corrosion