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OALib Journal期刊
ISSN: 2333-9721
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连续半固态成形6201合金线材的组织和性能
Keywords: 金属材料,连续挤压,6201铝合金,微观组织
Abstract:
？采用scr技术和在线固溶处理方法制备了直径为4.8mm的6201铝合金导电线材,研究了该线材及其冷拔的直径3.0mm线材的微观组织、力学性能和导电性能.结果表明:线材的组织由al基体、针状强化相的β”(mg2si)和片状si组成,低倍组织为等轴晶,线材的拉伸强度随着时效时间的延长出现先升后降的趋势,伸长率和电阻率则呈现下降的趋势,其变化趋势随着时效温度的提高而加剧;t6态线材的综合性能达到chta工艺指标;冷加工可显著提高合金线材的强度,适当的时效可降低其电阻率.
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