一、前言随着电子工业的发展,具有时效析出强化的铍青铜作为重要的弹性元件、耐磨零件在工业中被广泛应用。为防止铍青铜在固溶处理和时效过程中的氧化,目前工业上通常采用氨分解气氛和氢气作为保护气氛。但对铍青铜薄壁零件在氨分解和氢气气氛中保护加热固溶,经常出现气泡和表面丘疹两种缺 I. Introduction With the development of the electronics industry, beryllium bronze with aging precipitation strengthening is an important elastic element. Wear-resistant parts are widely used in industry. In order to prevent oxidation of beryllium bronze during the solution treatment and aging, ammonia decomposition gas and hydrogen gas are commonly used in the industry as a protective atmosphere. But beryllium bronze thin-walled parts in ammonia decomposition and hydrogen atmosphere heating solution, often appear bubbles and surface pimples