退火温度对模压形变后冷轧Cu-35Zn合金热稳定性的影响Effect of annealing temperature on thermal stability of Cu-35 Zn alloy processed by constrained groove pressing and cold rolling
彭开萍,牟雪萍,马玉声
摘要(Abstract):
对Cu-35Zn合金首先采用模压形变十道次后再进行30%冷轧,随后再进行不同温度的退火热处理,研究了经模压形变后冷轧的Cu-35Zn合金的热稳定性。结果表明:模压形变后冷轧可以细化Cu-35Zn合金的晶粒,并有效地提高其强度和硬度。经模压形变后冷轧的Cu-35Zn合金在200℃以下退火时,材料组织处于回复阶段;在220℃退火时,形成具有大角度晶界的亚晶;在300~400℃的温度范围内,完成再结晶及晶粒长大过程。
关键词(KeyWords): 模压形变;冷轧;Cu-35Zn合金;热稳定性;再结晶
基金项目(Foundation): 福建省自然科学基金资助项目(2011J01290)
作者(Author): 彭开萍,牟雪萍,马玉声
DOI: 10.13289/j.issn.1009-6264.2014.07.006
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