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Study on Microstructure and Mechanical Properties of Ni-Cr-Mo Alloy Spinning Tubes
Author(s): 
Pages: 17-20
Year: Issue:  19
Journal: Hot Working Technology

Keyword:  Ni-Cr-Mo合金强力旋压管材组织性能;
Abstract: 采用光学显微镜、扫描电镜及万能拉伸试验机等测试手段,研究了Ni-Cr-Mo合金铸态、旋压及同溶处理后管材的组织性能.结果表明:旋压后,晶粒沿管材的轴向被拉长,径向被压扁,晶粒内部存在大量的变形挛晶、变形带,有效地破碎了粗大的碳化物颗粒,管材的轴向强度略高于周向强度.固溶处理后,合金晶粒为等轴晶,晶粒内存在大量的退火挛晶,与铸态相比,其屈服强度、抗拉强度和伸长率分别提高了58.0%、44.9%和17...
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