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OALib Journal期刊
ISSN: 2333-9721
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zr对al-zn-mg-cu系超高强铝合金力学性能的影响
Keywords: 超高强度铝合金,力学性能,显微组织,断裂
Abstract:
？研究了zr对al-zn-mg-cu系超高强铝合金力学性能和显微组织的影响。结果表明，合金的强度随着zr含量的增加而提高，含zr量为0.06%（质量分数）时延伸率出现峰值。添加zr可抑制合金的再结晶，使合金组织细化，并使该合金的断裂机制由沿晶断裂转变为穿晶断裂。对于所研究的超高强度铝合金，zr的最佳添加量为0.06%~0.14%。
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