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Issue:
Defects Analysis on 37CrMnMo4 Drill Pipe Joints
Author(s):
WANG Guo-dong
,
ZHANG Zuo-gui
,
LIU Jun-liang
Pages:
58
-
62
Year:
2009
Issue:
6
Journal:
Physics Examination and Testing
Abstract:
利用金相显微镜、扫描电镜以及能谱和波谱分析手段详细研究了37CrMnM04钻杆接头生产过程中的缺陷问题,结果表明,37CrMnM04钻杆接头组织局部呈过烧状态,自由结晶面周围及晶界熔融处有P、Mo、Cr等元素的偏聚,由于钻杆接头材料中合金元素的偏析导致后续锻造过程中材料发生"形变过烧".
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