超声疲劳试验是给20毫米长的钢丝试样施加超声频率的震动。测量应力值和它的一些变化,用大约六分钟就相当于用几天确定的疲劳值。应用很广的线与线制品,其关健特性是它的耐疲劳。可惜,在这方面疲劳试验没有得到广泛应用。这主要是由于费用高和花费时间长。对消除这些因素虽已进行了多年研究,但还 Ultrasonic fatigue testing is to apply ultrasonic frequency vibrations to a 20 mm long wire sample. Measuring the stress value and some of its changes, in about six minutes, is equivalent to determining the fatigue value over several days. Wide range of wire and wire products, its key feature is its fatigue resistance. Unfortunately, fatigue tests have not been widely used in this area. This is mainly due to the high cost and long time. Although these factors have been studied for many years, they have been eliminated