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渗硬鉻是改善钢件表面耐磨损、耐氧化和耐腐蚀性的有效方法。法国已用来处理速射武器身管。近几年,国外试验成功先行氮化预处理的渗鉻工艺,较圆滿地解决了普通渗硬鉻工艺层深浅、脆性大的缺点,在低合金钢上得到了深50微米的高韧性表面硬化层。当硬度为2000Hv时,承受硬度计载荷1公斤也不产生裂纹,而同样材料经普通工艺处理,层深最大不超过20微米,硬度1800Hv时,受轻微载荷
Hard chromium penetration is to improve the steel surface wear resistance, oxidation resistance and corrosion resistance of the effective method. France has been used to deal with rapid-fire weapons. In recent years, foreign pilot successfully nitriding pretreatment chromizing process, a more complete solution to the common infiltration chrome layer depth, brittleness of the shortcomings of low alloy steel obtained in the 50 micrometer deep toughness surface Hardened layer. When the hardness of 2000Hv, to bear the hardness of 1 kg load does not produce cracks, and the same material by the ordinary process, the maximum depth of no more than 20 microns, the hardness of 1800Hv, subject to slight load