公开(公告)号：US4850715A

公开(公告)日：1989-07-25

申请号：US91826

申请日：1987-09-01

申请人： Norman H. Gaffin

发明人： Norman H. Gaffin

IPC分类号： G01N3/20 ,  G01N25/00

CPC分类号： G01N25/00 ,  G01N3/20 ,  G01N2203/0224 ,  Y10T428/125

摘要： A test specimen is provided, that is constructed of dual materials, which are preferably metallic materials and which are more preferably an austenitic iron alloy and a ferritic iron alloy. The specimen is generally constructed as a rectangular configuration, with two principal legs, connected together by substantially rigid connections at their ends, with the legs being of the different materials, such that, when the specimen is subjected to heat, one leg will expand linearly an amount greater than the other leg allowing the imposition of bending stress, whereby a given leg will experience both tension and compression. Observation may then be made, by a microscopic examination or otherwise, of those surfaces that are adjacent the portions of the legs that experience most of the tension and compression, such that the effects of temperature on the materials may be observed and recorded.

摘要翻译： 提供了由双材料构成的试样，其优选为金属材料，更优选为奥氏体铁合金和铁素体铁合金。 样本通常构造成矩形构造，其两个主腿通过其端部处的基本上刚性的连接连接在一起，腿部是不同的材料，使得当试样受热时，一条腿将线性膨胀 大于另一条腿的量允许施加弯曲应力，由此给定的腿将经受张力和压缩。 然后可以通过显微镜检查或其他方式观察经历大部分张力和压缩的腿的部分附近的那些表面，从而可以观察和记录温度对材料的影响。