Effect of Solution Treatment on Structure and Mechanical Properties of Hot Rolled Inconel 601 Alloy

• Published in: Teshugang
• Main Authors: Li Jidong, Wang Yan, Gu Yu, Wang Bin
• Format: Article
• Language: Chinese
• Published: Editorial Office of Special Steel 2021-03-01
• Online Access: http://www.specialsteeljournal.com/thesisDetails?columnId=129805319&Fpath=home&index=0

Effect of 1 080 ~ 1 200 ℃ solution temperature on structure and mechanical properties of hat rolled Inconel 601 alloy is studied by means of optical microscope, scanning electron microscopy, hardness tester and tensile tester. The results show that the structure of the hot rolled alloy matrix is elongated austenite grain structure with less dispersed nitride, but the massive carbide precipitated along austenite grain boundary. With the increasing solution temperature, the recrystallization grain size increases gradually, the carbide dissolves slowly, the strength and hardness decrease gradually. When the solution temperature is 1 160 ℃，the crystal grain size is uniform, the carbide dissolves completely, the HRB hardness value of alloy decreases from 84 to 71, and the elongation increases from 52% to 70%. The best mechanical properties of alloy can be obtained by solid solution treated process at 1 140 ~ 1 160 ℃ for 50 min.