Effect of Postweld Heat Treatment on the Sulfide Stress Cracking of Dissimilar Welds of Nickel-Based Alloy 625 on Steels

被引：8

作者：

Dai, Tao ^{[1
]}

Thodla, Ramgopal ^{[2
]}

Kovacs, William, III ^{[2
]}

Tummala, Kavitha ^{[2
]}

Lippold, John ^{[3
]}

机构：

[1] Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37830 USA

[2] DNV GL Inc, 5777 Frantz Rd, Dublin, OH 43017 USA

[3] Ohio State Univ, Welding Engn Lab, 1248 Arthur E Adams Dr, Columbus, OH 43221 USA

来源：

CORROSION | 2019年 / 75卷 / 06期

关键词：

heat treatment; nickel alloy; steel; sulfide stress cracking; weld; PIPELINE STEEL; HYDROGEN; MICROSTRUCTURE; CORROSION; H2S; PERMEATION; RESISTANCE; BEHAVIOR; TENSILE;

D O I：

10.5006/3081

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Alloy 625 overlay on 2.25Cr-1Mo (F22) Steel or AISI 8630 is used in oil and gas industry for corrosion protection. In some cases, F22/625 or 8630/625 interface is possibly exposed to the H2S-containing production fluid and there is a risk of sulfide stress cracking (SSC). The postweld heat treatment (PWHT) is used to reduce the cracking susceptibility of the F22/625 or 8630/625 dissimilar metal weld (DMW). The effect of PWHT on SSC resistance was investigated using four-point bend tests in a pH buffered brine solution with 8.2 wt% H2S. PWHT was found to improve the SSC resistance. The F22/625 DMW was more resistant to SSC than the 8630/625 DMW. The SSC of DMW between Alloy 625 and steel can be understood as a combination of stress corrosion cracking and hydrogen assisted cracking. It proved that the hardness requirement 250 Vickers hardness number (VHN) mandated in NACE Standard MR0175/ISO 15156 is overly conservative and the hardness can be increased at least to 275 VHN to 280 VHN.

引用

页码：641 / 656

页数：16

共 50 条

[21] Microstructural evolution and corrosion behaviour of thermally aged dissimilar metal welds of low-alloy steel and nickel-based alloy
Choi, Kyoung Joon
Yoo, Seung Chang
Kim, Seunghyun
Kim, Taeho
Ham, Junhyuk
Lee, Jeonghyeon
Kim, Ji Hyun
CORROSION SCIENCE, 2019, 153 : 138 - 149
[22] STRESS-CORROSION CRACKING OF LOW STRENGTH, LOW-ALLOY NICKEL STEELS IN SULFIDE ENVIRONMENTS
UHLIG, HH
CORROSION, 1978, 34 (10) : 364 - 365
[23] STRESS-CORROSION CRACKING OF LOW STRENGTH, LOW-ALLOY NICKEL STEELS IN SULFIDE ENVIRONMENTS
DUNLOP, AK
CORROSION, 1978, 34 (03) : 88 - 96
[24] Stress corrosion cracking of low-alloy steels .3. The effect of structure and heat treatment
Voronenko, BI
PROTECTION OF METALS, 1997, 33 (06): : 517 - 530
[25] Effect of heat treatment on structure of nickel-based catalysts
Dong, Yingnan
Tang, Meiling
Li, Shanshan
Zhao, Yan
Zhang, Dong
Tang, Jian
Niu, Wei
Bi, Xiaoguo
Wang, Jianyu
Zhang, Xiaoyan
MATERIALS EXPRESS, 2020, 10 (09) : 1484 - 1489
[26] Effect of heat treatment on the stress corrosion cracking of alloy 690
Casales, M
Salinas-Bravo, VM
Martinez-Villafañe, A
Gonzalez-Rodriguez, JG
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 332 (1-2): : 223 - 230
[27] Effect of Nickel on the Hydrogen Stress Cracking Resistance of Ferritic/Pearlitic Low Alloy Steels
Husby, Hans
Wagstaff, Philip
Iannuzzi, Mariano
Johnsen, Roy
Kappes, Mariano
CORROSION, 2018, 74 (07) : 801 - 818
[28] Multi-scale study of ductility-dip cracking in nickel-based alloy dissimilar metal weld
Yifeng Li
Jianqiu Wang
En-Hou Han
Wenbo Wu
Hannu H?nninen
JournalofMaterialsScience&Technology, 2019, 35 (04) : 545 - 559
[29] Multi-scale study of ductility-dip cracking in nickel-based alloy dissimilar metal weld
Li, Yifeng
Wang, Jianqiu
Han, En-Hou
Wu, Wenbo
Hanninen, Hannu
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2019, 35 (04) : 545 - 559
[30] Effect of heat treatment on the specific heat capacity of nickel-based alloys
Lee, SH
Kim, SW
Kang, KH
INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2006, 27 (01) : 282 - 292

← 1 2 3 4 5 →