0Cr18Ni9不锈钢板启裂韧度的测定
Determination of Initiation Toughness of 0Cr18Ni9 Stainless Steel Sheet
摘 要
参考GB/T 21143-2014多试样法设计试验，采用钝化线法和钝化区宽度法测定了0Cr18Ni9不锈钢板的启裂韧度Ji，并利用声发射技术对试验过程进行了监测。结果表明：与钝化线法相比，利用钝化区宽度法测定的0Cr18Ni9不锈钢板材启裂韧度Ji更接近真实值。根据声发射测试结果分析了不锈钢板的断裂过程，并结合钝化区宽度法确定其启裂韧度Ji=351.77 kJ ·m-2。
钝化区
钝化线
声发射
initiation toughness
stretch zone
blunting line
acoustic emission
Abstract
A test was designed according to the GB/T 21143-2014 multi sample method, the initiation toughness Ji of 0Cr18Ni9 stainless steel sheet was determined by blunting line method and stretch zone width method, and the test process was monitored by acoustic emission technology. The results show that compared with the blunting line method, the initiation toughness Ji of 0Cr18Ni9 stainless steel sheet measured by the stretch zone width method was closer to the true value. The fracture process of the stainless steel sheet was analyzed according to the acoustic emission test results, and the determined initiation toughness Ji=351.77 kJ·m-2 by the stretch zone width method.
中图分类号 TG115.5+7 DOI 10.11973/lhjy-wl201807002
所属栏目 试验与研究
基金项目
收稿日期 2017/9/26
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备注王宇宁(1990-),男,工程师,硕士,主要从事材料力学性能测试工作,wangyuning1990@sina.com
引用该论文: WANG Yuning,LU Kefei,HAN Lu,LIU Zhejun,WANG Ruwen. Determination of Initiation Toughness of 0Cr18Ni9 Stainless Steel Sheet[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2018, 54(7): 473～478
王宇宁,卢克非,韩露,刘哲军,王儒文. 0Cr18Ni9不锈钢板启裂韧度的测定[J]. 理化检验－物理分册, 2018, 54(7): 473～478
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