Cr-Ni-BASED ALLOY MATERIAL, SEMIFINISHED PRODUCT, COMPONENT PART FOR COMBUSTION ENGINE, METHOD OF

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PROBLEM TO BE SOLVED : To provide a material having high notch impact value and ductility, and excellent chemical properties regarding high temperature corrosion or heat corrosion. SOLUTION : A Cr-Ni-based alloy material used for manufacturing a half-finished product as a starting material especially for forming a composition part 1 of a large diesel engine is represented by (CrxNiyAz)Nk, where x+y+z+k=100%, a component A is one or more kinds of elements selected from chemical elements, La, Ce, Y, Hf, Sc, Si, C, S, P, Al, Zr, B, Mo, Fe, Mn, O and rare earth elements, the Cr amount x is, by weight, 50%0%, the amount z of the component A is, by weight, 0%≤z<50% and the nitrogen content k is, by weight, 0.01%≤k≤0.1%. COPYRIGHT : (C)2014, JPO&INPIT