小冲孔蠕变试验技术

Creep Testing Technique of Small Punch

小冲孔蠕变试验技术是获取在役构件蠕变性能的一种新方法,由于它具有接近无损取样的特点,因此受到学术界和工业界的广泛重视。本文简要回顾了小冲孔蠕变试验技术的发展及应用,重点介绍了典型小冲孔蠕变试验装置的组成及结构,指出了小冲孔蠕变试验技术目前存在的问题和广阔的应用前景。

A small punch creep testing technique using miniaturized specimen has been developed to obtain creep properties of in-service components as a .new method. It has received lots of attention from academia and industry due to the advantage of nearly nondestructive testing. The development and application of the technique are reviewed. The structure of small punch creep testing apparatus is also introduced in detail. Furthermore, the existing questions and application prospects of the technique are pointed out.