The results revealed that the non homogeneous distribution of the carbide caused the "zonal structure" appeared in the joint of drill rod which is hardened and hightemperature tempered.
结果表明，碳化物分布不均匀导致调质处理后在钻杆接头中产生“带状组织”。
The results revealed that the non homogeneous distribution of the carbide caused the "zonal structure" appeared in the joint of drill rod which is hardened and hightemperature tempered.
结果表明，碳化物分布不均匀导致调质处理后在钻杆接头中产生“带状组织”。
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