Microstructure and Properties of 10CrNi3MoV High Strength Steel for NavalShip Made by Wire and Arc Additive Manufacturing
GUO Chun1, MA Mingliang2, HU Ruizhang3, YANG Tuoyu1, CHEN Feng1
1 College of Mechanical Engineering, Anhui Science and Technology University, Bengbu 233000; 2 Luoyang Ship Material Research Institute, Luoyang 471000; 3 College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000
Abstract: The 10CrNi3MoV sample of high strength steel for naval ship was prepared by wire and arc additive manufacturing technology. The phase composition, microstructure,crystal structure and mechanical properties of 10CrNi3MoV samples were analyzed. Through the study on the microstructure and performance of 10CrNi3MoV high-strength steel wire and arc additive manufacturing sample, it was found that the 10CrNi3MoV high-strength steel sample prepared by wire and arc additive manufacturing technology had good forming quality, no major defects, and good internal metallurgical bonding of the sample. The metallographic structure was mainly acicular ferrite, massive ferrite and granular bainite. The microhardness of the sample section was evenly distributed, and the average microhardness was about 217HV0.2. Mechanical properties of the specimen is excellent, horizontal average yield strength is 498 MPa, the average tensile strength is 676 MPa, the average elongation is 25.5%, and -40 ℃ Charpy impact value is 127 J, longitudinal average yield strength is 459 MPa, the average tensile strength is 648 MPa, elongation is 23.5% on average and -40 ℃ Charpy impact value is 109 J.
郭纯, 马明亮, 胡瑞章, 杨拓宇, 陈丰. 电弧增材制造舰船用高强钢10CrNi3MoV的组织及性能[J]. 材料导报, 2019, 33(Z2): 455-459.
GUO Chun, MA Mingliang, HU Ruizhang, YANG Tuoyu, CHEN Feng. Microstructure and Properties of 10CrNi3MoV High Strength Steel for NavalShip Made by Wire and Arc Additive Manufacturing. Materials Reports, 2019, 33(Z2): 455-459.
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