期刊
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
卷 238, 期 -, 页码 423-430出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2016.08.001
关键词
316L austenitic stainless steel; Underwater wet welding; Flux-cored wire; Microstructure; Mechanical properties
资金
- Weihai Science and Technology Program [2012DXGJ05]
- State Key Development Program for Basic Research of China [2013CB035502]
- Shandong Provincial Science and Technology Development Plan [2014GGX103033]
- Postdoctoral Science Foundation of China [2014M561343]
- State Education Ministry Scientific Research Foundation for the Returned Overseas Chinese Scholars
Underwater wet welding of 316L stainless steel was performed with specially designed nickel-based tubular wire at shallow water. Microstructural observations showed that fully austenitic weld metal without cracks and pores was achieved by the nickel-base filler materials. The ultimate tensile strength of welded joints was 508 MPa and the average elongation of the joints was up to 32%. The impact test results indicated that all specimens exhibited ductile fracture and Charpy impact toughness value of weld metal at 0 degrees C was 159 J/cm(2). The average hardness of weld metal was 156 HV. There was a sharp increase of hardness occurred in fusion zone due to more ferrite formation. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据