Gaona Aero Material Co., Ltd.

Fushun Special Steel Shares Co., Ltd.

Lianpeng Li

Ran Duan

Shuo Huang

Heyong Qin

Beijiang Zhang

Guangpu Zhao

Yingyu Chou

Chao Qi

Disclosed in this application are a large-sized high-Nb superalloy ingot and a smelting process thereof. The smelting process includes: vacuum induction melting to prepare a plurality of vacuum induction melting ingots with the same composition which are used for preparing electroslag electrodes with the same number as the vacuum induction melting ingots for use in electroslag remelting, preparing a consumable electrode from the prepared consumable electroslag electrodes, and performing vacuum consumable arc remelting for a plurality of times by using the consumable electroslag electrodes as raw material. A large-sized high-Nb superalloy ingot having a weight of 15 tons or above and a diameter of 800 mm or above can be prepared from such process.

Large-sized high-Nb superalloy ingot and smelting process thereof

Growing community of inventors

Liaoning, China

Lianpeng Li