10.9级紧固件用非调质钢试制

Kang T'ieh/Iron and Steel (Peking)(2012)

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Abstract
为开发高强度紧固件用非调质钢,在高速线材轧机上进行了试验轧制,并对试制产品的组织性能进行了检测。结果表明,在给定工艺条件下钢的组织基本上为粒状贝氏体组织,抗拉强度为897.5MPa,伸长率为21.8%。热轧材拉拔减面后达到或超过10.9级紧固件的力学性能要求。当拉拔量为25.0%时,可承受59.3%的压缩变形不开裂。
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Key words
fastener,non-quenched and tempered steel,development,high strength,property,microstructure
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