X-Ray Diffraction Technique for Residual Stress Measurement in NiCrMo Alloy Weld Metal

被引：11

作者：

Monine, Vladimir Ivanovitch ^{[1
]}

Payao Filho, Joao da Cruz ^{[1
]}

Gonzaga, Rodrigo Stohler ^{[1
]}

Dias Passos, Elisa Kimus ^{[1
]}

de Assis, Joaquim Teixeira ^{[2
]}

机构：

[1] Univ Fed Rio de Janeiro, Met & Mat Program, Ave Horacio Macedo 2030,Cidade Univ, BR-68505 Rio De Janeiro, Brazil

[2] Univ Estado Rio de Janeirio, Mech Engn Dept, Inst Politecn Nova Friburgo, Rua Bonfim 25,Vila Amelia, BR-28625570 Nova Friburgo, RJ, Brazil

来源：

ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2018年 / 2018卷

关键词：

D O I：

10.1155/2018/8986423

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, residual stresses in nickel-based (Ni 625) superalloy weld metal of a 9%Ni steel-welded joint were measured by X-ray diffraction (XRD). This technique presents some difficulties in performing measurements in coarse and preferentially oriented weld metal microstructures. It is proposed a preliminary surface treatment by rotating steel wire brushing to perform the stress analysis through XRD technique possible for this kind of material. Stress measurements with proposed XRD technique showed that the stress state in Ni 625 weld metal on the outside surface of the welded joint is characterised by tensile stresses in the transverse and longitudinal directions, while compressive transverse and tensile longitudinal residual stresses are developed in the root pass region.

引用

页数：10

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