| 摘要 |
PROBLEM TO BE SOLVED: To provide welding material having corrosion resistance, durability, and good welding workability and composed of a single composition and with which multi-layer welding can be performed, and to provide an internal combustion engine combustion chamber component such as a valve rod on which build up welding is performed with the welding material, and to provide a method for manufacturing the internal combustion engine combustion chamber component.SOLUTION: On a combustion chamber side surface of an internal combustion engine combustion chamber component such as a valve rod and a cylinder cover, build up welding is performed with Ni-based powder alloy fo build up welding containing: 0.001 to 0.050 mass% of C; 0.01 to 0.50 mass% of Si; 0.01 to 0.50 mass% of Mn; 20.0 to 30.0 mass% of Cr; 4.0 to 12.0 mass% of Mo; 0.5 to 4.0 mass% of Nb; 0.1 to 6.0 mass% of Fe, greater than 0.8 mass% and less than or equal to 2.0 mass% in total of one or two of Al and Ti; and a remainder of Ni and unavoidable impurities. |
