金属学报  1988, Vol. 24 Issue (1): 55-57

论文 本期目录 | 过刊浏览 |

梯形波周期加载下超高强度钢的氢致断裂

罗恩洲;刘民治;肖耀天;陈廉

湖南大学应用物理系;成都科技大学金属材料系;中国科学院金属研究所;中国科学院金属研究所;副研究员;沈阳文化路

HYDROGEN-INDUCED FRACTURE OF A SUPER-HIGH STRENGTH STEEL UNDER CYCLIC LOAD OF LADDER WAVEFORM

LUO Enzhou;LIU Minzhi;XIAO Yaotian University; Changsha; Chengdu University of Science and Technology; Institute of Metal Research; Academia Sinica; Shenyang CHEN Lian Hunan Assoctate Professor;Institute of Metal Research;Academia Sinice;Shenyang

罗恩洲;刘民治;肖耀天;陈廉. 梯形波周期加载下超高强度钢的氢致断裂[J]. 金属学报, 1988, 24(1): 55-57.
, , , . HYDROGEN-INDUCED FRACTURE OF A SUPER-HIGH STRENGTH STEEL UNDER CYCLIC LOAD OF LADDER WAVEFORM[J]. Acta Metall Sin, 1988, 24(1): 55-57.

摘要 参考文献 相关文章 Metrics 全文: PDF(464 KB)   摘要: <正> 钢的氢脆研究,目前大部分都采用拉伸、持久和断裂韧性测试等方法。这些方法,对于促进氢脆机理的研究和工程应用都起了重要的作用。但在工程上,大部分动部件所受载荷都是交变的,而不是受静载拉伸。所以,也有人认为用低周疲劳来评价氢脆敏感性要比慢拉伸和静持久更为切合实际。我们选择了最简单的交变方式,即梯形波加载代替纯持久加载,以探讨疲劳因子对氢致滞后破坏的影响。 关键词 ： 梯形波加载,  位错输运,  氢致断裂     Abstract：Hydrogen-induced fracture of electrolytic charged, sharp notched specimens ofsuper-high strength steel 30CrMnSiNi2A has been studied by means of cyclic ladder waveformloading tests and SEM examination. The results show that the time to fracture decreases withthe decrease of dwell period of the load. It was considered that hydrogen transported by disloca-tions significantly effects the hydrogen-induced delayed fracture of the steel. Key words： ladder waveform loading    dislocation transport    hydrogen-induced fracture 收稿日期: 1988-01-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 罗恩洲 刘民治 肖耀天 陈廉 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1988/V24/I1/55 1 李保成,赵家萍译。兵器材料与力学,1981;(6) :35 2 Troiano A R. Trans Am Soc Met, 1960; 52: 54 3 Tien J K. Nair S V, Jensen R R. In: Bernstein I M, Thompson A W eds., Hydrogen Effects in Metals, Warrendale, Pa: TMS-AIME, 1980: 37 [1] 邢丽;柯黎明. 铁素体-奥氏体双相不锈钢焊缝金属的氢致断裂[J]. 金属学报, 1997, 33(3): 297-303. [2] 张柏玉;刁凤琼;唐祥云. 20钢氢致开裂临界浓度与应力的关系[J]. 金属学报, 1990, 26(6): 68-74. Viewed Full text Abstract Cited   Shared      Discussed