GH4065A alloy hot-rolled bar and preparation method thereof

• Main Authors: ZHANG WENYUN, ZHANG BEIJIANG, TIAN CHENGGANG, ZHANG XIAOMIN, LIU KANGKANG, YU TENG, WANG MIAOQUAN, CHOU YINGYU, LIU JUNJIAN, LI LINHAN
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2024
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; COMBINED OPERATIONS; FERROUS OR NON-FERROUS ALLOYS; MACHINE TOOLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; UNIVERSAL MACHINE TOOLS

The invention relates to the technical field of high-temperature alloys, and particularly discloses a GH4065A alloy hot-rolled bar and a preparation method thereof. The preparation method of the GH4065A alloy hot-rolled bar comprises the following steps of smelting, forging, hot rolling and heat treatment. Hot rolling is conducted, specifically, the forged bar is heated to 1000-1150 DEG C, then heat preservation is conducted at the temperature, and the heat preservation time is set according to the alloy thickness and calculated according to 1-1.5 mm/min; hot rolling is conducted, the initial rolling temperature ranges from 1000 DEG C to 1150 DEG C, and the final rolling temperature ranges from 900 DEG C to 1100 DEG C; hot rolling is carried out for 5-8 heating numbers, and the deformation of each heating number is 20-50%. By means of the preparation method, the small-size GH4065A alloy hot-rolled bar with the diameter being 12-45 mm can be prepared, and the GH4065A alloy hot-rolled bar has good tensile prope