当前位置: X-MOL 学术Strength Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Strength Assessment of Welded Joints of High-Strength Alloy Steels by Indentation Method
Strength of Materials ( IF 0.7 ) Pub Date : 2020-11-26 , DOI: 10.1007/s11223-020-00224-4
O. A. Katok , R. V. Kravchuk , V. V. Kharchenko , M. P. Rudnits’kyi , S. P. Bisyk , L. S. Davydovs’kyi , O. A. Slyvins’kyi

The paper presents the indentation method for strength assessment of the welded joints in high-strength alloy steels, including base metal, heat-affected zone, and welded joint, in production after application of selected flaw detection methods as a final stage of non-destructive testing methods. Non-destructive testing methods are mainly used to detect defects, their location, size, and nature. The indentation method allows one to determine both the joint strength and the strength and dimensions of the heat-affected zone during the production process. The authors performed the comparative analysis on the hardness and strength limit of welded joints of 30Kh2CN2MFA and 28GRA alloy steels as delivered of sheet metal of 6 mm in thickness (for the production of special structures) to corroborate the method efficiency. It is shown that the Brinell hardness values obtained by the TSH-2 stationary hardness tester, ERNST Computest SC portable hardness tester, and instrumented indentation imply the same nature of the hardness distribution along the length of the specimen cut across the axis of the welded joint. The distribution nature of the strength limit values determined by the indentation method is similar to that of the Brinell HBW hardness distribution. It is established that the deviation of strength limit values determined by the indentation method did not exceed 3.7%.



中文翻译:

压痕法评定高强度合金钢焊接接头强度

本文介绍了一种压痕方法,用于在应用选定的探伤方法作为无损检测的最后阶段后,在生产中评估包括母材,热影响区和焊接接头在内的高强度合金钢的焊接接头强度。测试方法。无损检测方法主要用于检测缺陷,缺陷的位置,大小和性质。压痕方法使人们既可以确定接合强度,又可以确定生产过程中热影响区的强度和尺寸。作者对30Kh2CN2MFA和28GRA合金钢的厚度为6 mm的薄板(用于生产特殊结构)的焊接接头的硬度和强度极限进行了比较分析,以证实该方法的效率。结果表明,由TSH-2固定硬度测试仪,ERNST Computest SC便携式硬度测试仪和仪器压痕获得的布氏硬度值表明,沿着沿焊接接头轴线切割的试样长度,硬度分布具有相同的性质。通过压痕法确定的强度极限值的分布性质类似于布氏HBW硬度分布的分布性质。已经确定,通过压痕法确定的强度极限值的偏差不超过3.7%。通过压痕法确定的强度极限值的分布性质类似于布氏HBW硬度分布的分布性质。已经确定,通过压痕法确定的强度极限值的偏差不超过3.7%。通过压痕法确定的强度极限值的分布性质类似于布氏HBW硬度分布的分布性质。已经确定,通过压痕法确定的强度极限值的偏差不超过3.7%。

更新日期:2020-11-27
down
wechat
bug