Abstract Miniaturized Tensile Test (MTT), as an important type of Small Specimen Test Technology (SSTT), has gained increasing attentions in the nuclear industry and other fields. However, MTT faces great challenges because the test results may deviate from standard specimens due to specimen size effects and may exhibit large scatters caused by fabrication imperfection. In order to improve the reliability of MTT, many efforts have been made during the past several decades, and various issues regarding on the MTT have been studied. This paper reviews and analyzes the previous studies of specimen size effects on mechanical properties and summarizes the design guidelines for MTT proposed in previous literatures. The previous specimen designs for standard and small specimens have also been reviewed briefly. The SSTT including specimen preparation, testing operation, measurements of stress and strain also have been addressed in this study, since the testing results of SSTT are sensitive to dimensional deviations, surface defects, measurement errors, etc. In addition, data analysis schemes such as elongation conversion with simple formulae or even FEM simulation have been discussed.

中文翻译：

---

小型化拉伸试验的标准与实践——综述

摘要 微型拉伸试验（MTT）作为一种重要的小试样试验技术（SSTT），在核工业等领域越来越受到重视。然而，MTT 面临着巨大的挑战，因为测试结果可能会因试样尺寸效应而偏离标准试样，并且可能由于制造缺陷而表现出较大的散射。为了提高MTT的可靠性，在过去的几十年里已经做出了很多努力，并且已经研究了关于MTT的各种问题。本文回顾和分析了以往关于试样尺寸对力学性能影响的研究，并总结了以往文献中提出的 MTT 设计指南。之前的标准和小试件设计也进行了简要回顾。SSTT 包括试样制备、