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yong shi bo chong ji fa ce ding ji zhong di he jin gang de dong tai ren xing
Author(s): 
Pages: 51-56
Year: Issue:  Z1
Journal: Research on Iron and Steel

Keyword:  动态韧性示波冲击法低合金钢预裂纹裂纹长度缺口冲击试验冲击韧性值测定冲击负荷动态断裂韧性;
Abstract: <正> 一、前言材料在动载情况下的韧脆性能是衡量材料好坏的重要指标之一。而评定动态韧性的实验方法从缺口冲击试验开始,七十多年夹又发展了落锤试验、止裂温度试验等。缺口冲击试验虽然存在一些问题,但由于其设备单纯、方法简便、耗费试验材料少,所以至今仍为人们所
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