摘要：【中文】一种高韧性17‑4PH沉淀硬化不锈钢金属芯焊丝，属于材料加工工程领域，主要用于17‑4PH沉淀硬化不锈钢的焊接和堆焊。采用430不锈钢带作为包覆层，粉芯中合合金成分的质量百分比为：金属铬粉的质量百分含量为17－25％，金属镍粉的质量百分含量为13－18％，电解金属锰的质量百分含量为1－3％，钼铁(Mo％＝60％)的质量百分比为0－5％，铌铁(Nb％＝60％)的质量百分比为0.5－2％，纯铜粉的质量百分比为11－15％，45％硅铁的质量百分比为0－2％。碳酸钠的质量百分比为2－4％，钛酸钾的质量百分比为2－4％。余量为还原铁粉。药芯焊丝的填充率为28－35％。焊接接头具有优良的韧性和力学性能。 【EN】A high-toughness 17-4PH precipitation hardening stainless steel metal-cored welding wire belongs to the field of material processing engineering and is mainly used for welding and surfacing of 17-4PH precipitation hardening stainless steel. A430 stainless steel band is adopted as a coating layer, and the mass percentage of the alloy components in the powder core is as follows: the weight percentage of the metal chromium powder is 17-25%, the weight percentage of the metal nickel powder is 13-18%, the weight percentage of the electrolytic manganese metal is 1-3%, the weight percentage of the ferromolybdenum (Mo% ═ 60%) is 0-5%, the weight percentage of the ferroniobium (Nb% ═ 60%) is 0.5-2%, the weight percentage of the pure copper powder is 11-15%, and the weight percentage of the 45% ferrosilicon is 0-2%. The mass percent of the sodium carbonate is 2-4%, and the mass percent of the potassium titanate is 2-4%. The balance of reduced iron powder. The filling rate of the flux-cored wire is 28-35%. The welding joint has excellent toughness and mechanical property.