Effect of Tantalum content on the low cycle fatigue properties of CLAM steel at 823 K

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• 作者：Xiangwei Zhai^a ; ^b ; Shaojun Liu^a ; ^{shaojun.liu@fds.org.cn} ; Yanyun Zhao^a ; Kun Wang^a
• 关键词：CLAM steel ; Ta content ; Ta-rich MX particle ; Low cycle fatigue properties
• 刊名：Fusion Engineering and Design
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：211-218
• 全文大小：6401 K
• 卷排序：114

文摘

The fatigue life initially decreased and then increased as the Ta content was increased from 0.027 wt% to 0.18 wt%. The softening rate had declined with Ta content increased and the reduced softening rate was attributed to the increased number of Ta-rich MX particles. The grain size and M23C6 were closely associated with the Ta content. The crack distribution was quite sensitive to the Ta content.