压力容器2016，Vol.33Issue(6)：1-7,7.DOI:10.3969/j.issn.1001-4837.2016.06.001
921A 钢的延性断裂韧性测试研究
Research on Ductile Fracture Toughness Test of 921A Steel
周启雄 1范俊明 1程红渝 2董承武2
作者信息
- 1. 成都格瑞特高压容器有限责任公司，四川 成都 610400
- 2. 成都市特种设备检验院，四川 成都 610041
- 折叠
摘要
Abstract
Based on unloading compliance method by GB /T 21143 and rules for normalized data reduction technique recommended by American standard ASTME1820 -11.Several experimental studies were con-ducted,such as prefabricating fatigue pre-crack of 921A steel specimens,collecting and processing test data,and evaluating validity of experiments.The results of this research show that J—Δa curve and crack initiation toughness JQ acquired by the normalized data reduction technology and unloading compliance method are relatively consistent,and there is an approximate consistency between the final crack length of prediction and actual crack length observed by optical microscope.It can be concluded that the use of GB /T 21143 can be effectively measured ductile fracture toughness of high-strength plastic material.关键词
921A钢/延性断裂韧度/规则化数据还原技术/柔度法Key words
921A steel/ductile fracture toughness/normalized data reduction technique/unloading com-pliance method分类
机械制造引用本文复制引用
周启雄,范俊明,程红渝,董承武..921A 钢的延性断裂韧性测试研究[J].压力容器,2016,33(6):1-7,7.
