Corrosion-resistant and wear-resistant ni-based alloy

Abstract

A raw powder having a composition containing, in weight percent, B: 2.2 to 3.0%; Si: 3.0 to 5.0%; Mo: 18 to 25%; Cu: 1 to 15%, the balance of Ni and unavoidable impurities, with a weight ratio of Mo content to B content being from 7 to 9, is produced using a molten metal spraying method, and the raw powder is then sintered, thereby a corrosion-resistant and wear-resistant Ni-based alloy is produced.

1 . A corrosion-resistant and wear-resistant Ni-based alloy obtained by producing, using a molten metal spraying method, a raw powder having a composition containing, in weight percent, B: 2.2 to 3.0%; Si: 3.0 to 5.0%; Mo: 18 to 25%; Cu: 1 to 15%, the balance of Ni and unavoidable impurities, with a weight ratio of Mo content to B content being from 7 to 9, and then sintering the raw powder. 
     
     
         2 . The corrosion-resistant and wear-resistant Ni-based alloy according to  claim 1 , wherein
 the powder before sintering further contains 0.01 to 0.50% of C on the weight %.   
     
     
         3 . A part of a resin molding machine in which at least a portion in contact with a resin is formed of the corrosion resistant and wear resistant Ni alloy according to  claim 1 . 
     
     
         4 . A part of a resin molding machine in which at least a portion in contact with a resin is formed of the corrosion resistant and wear resistant Ni alloy according to  claim 2 .