Revision Recommendations of GB/T 228.1-2010 and ISO 6892-1: 2016 for Tensile Test Method Standards of Metallic Materials at Room Temperature
摘 要
分析并总结了近几年对GB/T 228.1-2010和ISO 6892-1:2009的不同解读及争论,指出了弹性段速率不影响试验结果,屈服段的速率才影响试验结果;有反馈控制功能的拉伸试验机采用方法B应按照上述两标准中10.4.2.2~10.4.2.4款的规定,标准中10.4.2.1款及表3仅适用于没有反馈控制功能的液压拉伸试验机;对于有反馈控制功能的拉伸试验机,方法C能同时适用于连续屈服试样和不连续屈服试样,既能够克服方法A试验结果显著偏低、效率低、可行性差的问题,又能克服方法B速率范围宽、再现性差的问题,并且操作简单、效率适中还能与传统方法测得的历史数据基本保持一致;方法A作为一种试验结果比传统方法显著偏低的方法,只能在材料标准中指定或相关方协议规定的情况下使用。
Abstract
The different interpretations and debates on GB/T 228.1-2010 and ISO 6892-1:2009 in recent years were analyzed and summarized. It is pointed out that tension rate in elastic section does not affect the test results, and tension rate in yield section affects the test results. The tensile test machine with feedback control function adopts the method B shall be in accordance with the requirements of the above two standards 10.4.2.2-10.4.2.4, 10.4.2.1 and table 3 in the standard are only applicable to hydraulic tensile test machines without feedback control functions. For the tensile test machine with feedback control function, method C can also be apply to both continuous yield specimens and discontinuous yield specimens. It can not only overcome the problems of markedly low test results, low efficiency and poor feasibility of method A, but also overcome the problems of wide speed range and poor reproducibility of method B. Moreover, the method C is easy to operate and has moderate efficiency, and it can be basically consistent with the historical data measured by traditional methods. Method A, as a method with significantly lower test results than traditional methods, can only be used when specified in the material standards or in the relevant agreements.
中图分类号 TG115.5 DOI 10.11973/lhjy-wl201809001
所属栏目 专题报道(拉伸试验)
基金项目
收稿日期 2018/7/20
修改稿日期
网络出版日期
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备注李和平(1955-),男,教授级高工,主要从事钢铁产品出厂检验的力学试验方法和质量保证工作,13856057940@139.com
引用该论文: LI Heping. Revision Recommendations of GB/T 228.1-2010 and ISO 6892-1: 2016 for Tensile Test Method Standards of Metallic Materials at Room Temperature[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2018, 54(9): 621~628
李和平. 对金属材料室温拉伸试验方法标准GB/T 228.1-2010及ISO 6892-1:2016的修订建议[J]. 理化检验-物理分册, 2018, 54(9): 621~628
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参考文献
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【2】李和平,周星,沈佳谊,等. 对金属材料拉伸试验方法标准中推荐应变控制和刚度修正方法的验证分析[J]. 理化检验(物理分册),2014,50(2):75-82.
【3】李和平,周星,徐惟诚,等. 金属拉伸试验方法标准中应力速率的三种解释和实施中的问题[C]//2012国际冶金及材料分析测试学术报告会(CCATM2012)论文集. 北京:中国金属学会,2012:444-448.
【4】高怡斐,梁新帮,邓星临. GB/T 228.1-2010《金属材料拉伸试验第1部分:室温实验方法》实施指南[M]. 北京:中国质检出版社,2012.
【5】KLINGELHÖFFER H,AEGERTER J,SCHERM T,et al. Discussion on "analysis on the issues in ISO 6892-1 and TENSTAND WP4 report based on the data of confirm tests by 21 laboratories"-A refutation of international tensile testing experts journal of testing and evaluation[J]. Journal of Testing & Evaluation,2017,45(3):20160526.
【6】KLINGELHOFFER H,LEDWORUSKI S,BROOKES S,et al. TENSTAND-Work package 4 final report[R].[S.l.]:[s.n.],2005.
【7】AEGERTER J,KÜHN H J,FRENZ H,et al. EN ISO 6892-1:2009 Tensile testing:Initial experience from the practical implementation of the new standard[J]. Mechanical Testing,2011,53(10):595-603.
【8】AEGERTER J,BONN,BLOCHING H. Influence of the testing speed on the yield/proof strength:Tensile testing in compliance with EN 10002-1[J]. Mechanical Testing,2001,43(10):393-403.
【9】李和平,周星,沈佳谊,等. 根据21个实验室拉伸验证试验结果分析GB/T 228.1-2010中存在的问题[J]. 理化检验(物理分册),2014,50(10):703-707.
【10】LI H P,ZHOU X,SHEN J,et al. Analysis on the issues in ISO 6892-1 and TENSTAND WP4 report based on the data of confirm tests by 21 laboratories[J]. Journal of Testing & Evaluation,2016,44(2):20150479.
【11】LI H P,ZHOU X,LUO D,et al. Response to discussion on "analysis on the lssues in ISO 6892-1 and TENSTAND WP4 report based on the data of confirm tests by 21 laboratories"[J]. Journal of Testing & Evaluation,2017,45(3):20160620.
【12】李卫华,王承忠. 基于拉伸变形本质行为的试验方法探讨[J]. 理化检验(物理分册),2018,54(4):239-243.
【13】钱志屏. 材料的变形与断裂[M]. 上海:上海同济大学出版社,1989.
【14】高怡斐. 国内外常用金属材料力学性能试验方法的新进展[J]. 理化检验(物理分册),2012,(z1):34-39.
【15】高怡斐. GB/T 228.1-2010中应变速率控制模式(方法A)的解读[J]. 理化检验(物理分册),2013,49(8):494-496.
【16】梁新邦,郑文龙,王春华,等. 关于GB/T 228.1-2010附录F中应变速率公式和横梁位移速率公式的说明[J]. 理化检验(物理分册),2014,50(6):383-389.
【17】EARL A. Workshop on the speed of testing[R].[S.l.]:[s.n.],2007.
【18】李和平. 关于拉伸试验标准GB/T 228.1-2010主要争论问题的探讨[J]. 理化检验(物理分册),2016,52(9):597-602.
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