服役后16Mn管材应变时效的自动球压痕测试

doi:10.6040/j.issn.1672-3961.0.2016.467

山东大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 64-69.doi: 10.6040/j.issn.1672-3961.0.2016.467

服役后16Mn管材应变时效的自动球压痕测试

杨炎^a,b,c,王威强^a,b,c*,潘路^a,宋明大^b,d

山东大学 a. 机械工程学院;b. 特种设备安全保障与评价研究中心;c. 特种设备安全工程技术研究中心;d. 特种设备检验研究院, 山东济南 250061

收稿日期:2017-01-05 出版日期:2017-08-20 发布日期:2017-01-05
通讯作者: 王威强(1959— ), 男,山东青岛人,教授,博导,主要研究方向为失效分析和结构完整性评估.E-mail:wqwang@sdu.edu.cn E-mail:327015564@qq.com
作者简介:杨炎(1990— ), 男,福建莆田人,硕士研究生,主要研究方向为压痕法测试材料力学性能.E-mail:327015564@qq.com
基金资助:
国家重点研发计划课题资助项目(2016YFF0203005)

16Mn pipe strain aging after service by automatic ball indentation test

YANG Yan^a,b,c, WANG Weiqiang^a,b,c*, PAN Lu^a, SONG Mingda^b,d

a. School of Mechanical Engineering;
b. Research Center of Safety Guarantee and Assessment to Special Equipment;
c. Engineering and Technology Research Center for Special Equipment Safety of Shandong Province;
d. Shandong Special Equipment Inspection Institute, Shandong University, Jinan 250101, Shandong, China

Received:2017-01-05 Online:2017-08-20 Published:2017-01-05

摘要/Abstract

摘要： 针对在役和不可取样的设备应变时效价难问题,以服役后16Mn管材为研究对象,通过自动球压痕和常规力学试验,对比应变时效前后材料的屈服强度、抗拉强度、冲击吸收能和断裂韧度,并深入探讨自动球压痕试验在材料应变时效上的应用。试验结果表明,自动球压痕可以准确测定材料发生应变时效后的力学性能值,因此可以定期通过自动球压痕技术对在役设备进行力学性能测试,并根据实际测试力学性能来调整运行压力或更换设备,不但可以有利于设备的安全运行,同时可以延长设备的使用寿命。

关键词: 应变时效, 力学性能, 自动球压痕, 在役, 16Mn钢

Abstract: The evaluation of strain aging was a difficult problem for in-service and un-sampling equipment. The 16Mn pipe was used as research material. The values of yield strength, tensile strength, impact absorbing energy and fracture toughness of the material which before and after the strain aging were compared by the automatic ball indentation tests and conventional mechanical experiments. And the application of the automated ball indentation tests in the strain aged steel was further discussed. The results showed that the automatic ball indentation tests could be used to accurately measure the mechanical properties of the material after the strain aging. So the mechanical performance of the in-service equipment could be acquired regularly by the automatic ball indentation technology, and according to the actual test mechanical properties to adjust operating pressure or replacement equipment, it could facilitate the safe operation of equipment, moreover it could extend the service life of equipment.

Key words: 16Mn steel, strain aging, mechanical property, automated ball indentation, in service

中图分类号:

TG115.5

杨炎,王威强,潘路,宋明大. 服役后16Mn管材应变时效的自动球压痕测试[J]. 山东大学学报(工学版), 2017, 47(4): 64-69.

YANG Yan, WANG Weiqiang, PAN Lu, SONG Mingda. 16Mn pipe strain aging after service by automatic ball indentation test[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2017, 47(4): 64-69.

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服役后16Mn管材应变时效的自动球压痕测试

16Mn pipe strain aging after service by automatic ball indentation test

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