弹簧碾尖部位组织与弹簧其它部位组织不同，存在淬火屈氏体组织。
The structure of spring tine is not the same with that of any other parts and there is quenching.
通过金相、性能和热处理试验，对盘条拉丝断裂原因进行了分析，认为盘条存在屈氏体组织是断裂的根本原因。
The mechanical properties testing, microstructure observation and fractographic features analysis of the troostite high chromium cast iron blade were carried out.
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