Zhang Xu,Li Dian-Zhong,Li Yi-Yi,Lu Shan-Ping Effect of Nb and Mo on the Microstructure, Mechanical Properties and Ductility-Dip Cracking of Ni-Cr-Fe Weld Metals Zhang Xu,Li Dian-Zhong,Li Yi-Yi,Lu Shan-Ping 1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China 2 School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China 3 Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China Acta Metallurgica Sinica(English letters),2016,29(10),928-939.DOI:10.1007/s40195-016-0469-z