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疲劳性能不合格的38Si7弹簧钢夹杂物分析
张宏亮,冯光宏,贾志立
Analysis of the Inclusions in 38Si7 Spring Steel With Fatigue Failure
ZHANG Hongliang,FENG Guanghong,JIA Zhili
钢铁 . 2011, (5): 85 -88 .