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A RENAISSANCE IN THE USE OF THE SMALL PUNCH TESTING TECHNIQUE

机译:小打孔测试技术的使用的重新思考

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The underlying purpose of this paper is to evaluate whether the CEN CWA 15627 "Small Punch Test Method for Metallic Materials" first published in 2006 has indeed succeeded in providing a stimulus for a wider implementation of the small punch test technique in industrial applications throughout Europe and indeed worldwide. A wealth of research progress has been apparent, as strongly evidenced in three dedicated SSTT (Small Specimen Testing Techniques) conferences held in Europe over the last five years, but also in the wider literature. In particular it is important to mention the recent publication of a Japanese standard and the announcement of parallel progress in China. The present paper concentrates on progress within Europe from the launch of the Code to the present day. In particular attention is focused on the need for industrial acceptance of the test methodology and methods for evaluating the results. Some scepticism still seems to prevail within sectors of the conventional power generation industry, an industry which can potentially benefit most from successful remanent lifetime extension tools of which small punch testing can be considered as a prime candidate. In spite of this, it is demonstrated that a major proportion of the Small Punch testing research of the last decade has been carried out on power plant steels. Meanwhile it is shown that there is evidence that the original remit of the methodology in assessing the integrity of irradiated nuclear plant remains active, new interest is developing for aerospace and next generation nuclear applications enhancing further the credibility of the Code.
机译:本文的基本目的是评估2006年首次发布的CEN CWA 15627“金属材料的小型冲孔测试方法”是否确实为在整个欧洲和欧洲的工业应用中广泛实施小型冲孔测试技术提供了动力。确实在世界范围内。近五年来,在欧洲举行的三场专门的SSTT(小样本测试技术)会议上,以及在更广泛的文献中,都充分证明了大量的研究进展。特别重要的是要提到最近发布的日本标准以及在中国取得类似进展的公告。本文件集中讨论了从《守则》发布到今天在欧洲范围内的进展。特别地,注意力集中在工业上接受测试方法和评估结果的方法上。在常规发电行业中,似乎仍然存在一些怀疑论者,该行业可以从成功的剩余寿命延长工具中受益最大,该工具的小型打孔测试可以被认为是主要的选择。尽管如此,事实证明,在过去十年中,Small Punch测试研究的很大一部分是在电厂钢上进行的。同时,有证据表明,评估辐照核电站完整性的方法的原始权限仍然很活跃,航空航天和下一代核应用正在产生新的兴趣,从而进一步提高了《守则》的可信度。

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