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Mechanical Property Test and Bending Reason Analysis of Cr9Mo Furnace Tube at High Temperature
Author(s): 
Pages: 19-21
Year: Issue:  6
Journal: Hot Working Technology

Abstract: 通过宏观观察、硬度测试、金相分析、常温和高温拉伸试验、冲击试验和扫描电镜等方法,对高温服役后的Cr9Mo炉管进行性能测试,并分析弯曲原因.结果表明:炉管金相组织明显球化;常温下的伸长率,硬度和冲击性能有所下降,高温下的屈服强度和抗拉强度均比规范值低;热应力导致炉管弯曲.
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