▎ 摘　　要

NOVELTY - A modified hard alloy comprises 0.1-0.8 pt. wt., preferably 0.5 pt. wt. graphene, 0.2-0.5 pt. wt., preferably 0.4 pt. wt. carbon powder, 0.1-0.3 pt. wt., preferably 0.2 pt. wt. silicon, 0.1-0.8 pt. wt., preferably 0.5 pt. wt. titanium, 0-0.01 pt. wt., preferably 0.002 pt. wt. phosphorus, 1-2 pts. wt., preferably 2 pt. wt. chromium, 3-8 pts. wt., preferably 6 pts. wt. nickel, 0.5-2 pts. wt., preferably 1 pt. wt. molybdenum, and 100-200 pts. wt., preferably 100 pts. wt. iron. USE - Modified hard alloy (claimed). ADVANTAGE - The modified hard alloy has hardness higher than that of common alloy or metal, and can be prepared industrially by a simple method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of modified hard alloy.