1979年5月中国金属学会应美国金属学会的邀请,由理事长叶志强率领代表团赴美国访问,访问期间参观了许多研究机关、高等学校、钢铁工厂并与美国金属学会协商签订了科学技术合作协议。协议主要内容如下: 一、双方同意定期互派科学技术代表团。美国金属学会将于1980年派出一个金属工业技术和管理专家组成的代表团到中国;1981年中国金属学会派一个代表团访问美国。 In May 1979, at the invitation of the American Institute of Metals, Chinese Society for Metals led a delegation led by the governor Ye Zhiqiang to visit the United States. During the visit, many visiting research institutes, colleges and universities and steel factories also signed a scientific and technological cooperation agreement with the American Institute of Metals . The main contents of the agreement are as follows: 1. Both parties agree to regularly exchange representatives of science and technology. The American Society for Metals will send a delegation of experts in metal industry technology and management to China in 1980; a delegation from China Metallurgy Institute will visit the United States in 1981.