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Zn-25%Al-X%Cu合金的力学性能和耐磨性研究 被引量:2

Study on Mechanical Properties and Wear Resistance for Alloys Zn25%AlX%Cu
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摘要 研究了Zn-25%Al-X%Cu合金的力学性能和在油润滑条件下的耐磨性。研究发现,随着Cu含量升高,该合金的抗拉强度逐渐升高,并在Cu含量达到6.64%时达到最大值369MPa;伸长率在Cu含量为2.24%时达到最大值14.1%,Cu含量超过2.24%后,随Cu含量升高,延伸率逐渐下降;硬度的变化与伸长率的变化相反,Zn-25%Al-2.24%Cu的硬度最低(HB98)。在Zn-25%Al-0.62%Cu合金的枝晶间未见到ε(CuZn4)相,随着Cu含量升高,合金中的ε相增多,其耐磨性逐渐升高。 The mechanical properties and wear resistance in the oil lubricated condition for alloys Zn25%AlX%Cu were studied. It was found that with increasing of the copper content ultimate tensile strength of alloys gradually increased up to the maximum value 369 MPa with the copper content 6.64% while the elongation of the alloy Zn25%Al2.24%Cu had the maximum value 14.1% with 2.24%Cu. The elongation of alloys decreased in an excess above 2.24% copper. The hardness change of alloys was opposed to the elongation variation and the hardness of the alloy Zn25%Al2.24%Cu had the minimum value (HB98). No εphase appear in interdendrite zones of the alloy Zn25%Al0.62%Cu, but εphases appeared in interdendrite zones of the alloy Zn25%Al2.24%Cu and increased with increasing of the copper content. With increasing of the copper content the wear resistance of alloys gradually increased.
机构地区 四川联合大学
出处 《特种铸造及有色合金》 CAS CSCD 北大核心 1998年第3期16-18,共3页 Special Casting & Nonferrous Alloys
关键词 锌合金 铜含量 力学性能 耐磨性 Zinc Based Alloy, Copper, Mechanical Properties, Wear Resistance
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