一、前言 本世纪初发展起来的喷丸强化工艺,在民用汽车制造业中迅速得到推广使用。在常温下工作的喷丸强化零件(其中特别是各种弹簧和板簧),疲劳破坏寿命(或疲劳强度)均获得了明显提高。后来,喷丸强化工艺又在航空工业中得到了广泛应用。但是,在很长一段时间里,喷丸强化工艺在燃气涡轮发动机高温部件上的应用还是一个“禁区”。近十几年来的试 First, the foreword Shot peening developed at the beginning of this century to strengthen the process of rapid development in the civilian car manufacturing industry to use. Shot peening parts working at room temperature (especially various springs and leaf springs), fatigue failure life (or fatigue strength) have been significantly improved. Later, shot peening technology has been widely used in the aviation industry. However, the application of shot peening to high temperature components of gas turbine engines has remained a “forbidden zone” for a long time. Nearly ten years of trial