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本文研究了铜对WC—Co和WC—Ni合金的影响。 研究表明:WC—Co合金中添加铜可以有效地提高合金的抗弯强度和冲击韧性。WC—15％Co合金中,添加0.5％Cu(重量)时,合金的抗弯强度较WC-15％Co合金提高10％以上。试验得出,WC—15％Co合金的冲击韧性随含铜量的增加而提高,铜添加量为1％(重量)时达最大值,较WC—15％Co合金提高15％。研究指出:WC—Co合金中加入铜后,能细化合金的碳化物晶粒。 研究表明:在WC—8％Ni合金中添加少量铜,可以明显提高合金的抗弯强度而合金硬度降低不大。添加量为1.3％Cu时,抗弯强度达最大值,较WC—8％Ni合金提高25％。研究结果还表明,在WC—8％Ni合金中,随含铜量的增加,合金晶粒渐趋均匀并细化。 试验得出:WC—8％Ni—Cu合金具有良好的耐酸耐蚀性。 研究结果还表明:在WC—Co和WC—Ni中添加铜后,不仅能提高合金性能,而且还能降低产品的成本。
This paper studies the effect of copper on WC-Co and WC-Ni alloys. The results show that adding copper to WC-Co alloy can effectively improve the flexural strength and impact toughness of the alloy. WC-15% Co alloy, adding 0.5% Cu (weight), the bending strength of the alloy WC-15% Co alloy increased by 10% or more. The results showed that the impact toughness of WC-15% Co alloy increased with the increase of copper content, reaching the maximum value of 1% by weight of copper and 15% more than that of WC-15% Co alloy. The research shows that the addition of copper to WC-Co alloy can refine the alloy carbide grains. The results show that adding a small amount of copper to WC-8% Ni alloy can obviously improve the flexural strength of the alloy, while the hardness of the alloy decreases little. When the addition amount of 1.3% Cu, the flexural strength reaches the maximum value, which is 25% higher than that of WC-8% Ni alloy. The results also show that in the WC-8% Ni alloy, with the increase of copper content, the alloy grains become more homogeneous and refined. Test results: WC-8% Ni-Cu alloy has good acid and corrosion resistance. The results also show that the addition of copper to WC-Co and WC-Ni not only increases the alloy’s performance but also reduces the cost of the product.