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Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints

Yu Hong Yao's research works Xi'an Jiaotong University

Yu Hong Yao's 5 research works with 11 citations and 45 reads,including Properties of Self-Expanding Nitinol Stents Treated by Addition of 600 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#176;C Heat Setting ProcessYao Hua Jin Scientific.NetAgeing Embrittlement of 15Cr1Mo1V Steel Welded Joints Evaluated by Small Punch Test Authors Yu Hong Yao,Jian Feng Wei,Jiang Nan Liu,Zheng Pin Wang,Yao Hua Jin Abstract The microstructure and property of 15Cr1Mo1V steel welded joints after 70,000h service have been researched by OM,SEM,Vickers hardness test and small punch test (SPT).What is temper embrittlement,and how can it be controlled The maximum value for this expression to avoid serious embrittlement depends on the welding process,but is given as 2.8-3.0 where coarse grained weld metal exists.Step cooling can reveal the susceptibility of a steel to temper embrittlement.

What is temper embrittlement,and how can it be controlled

The maximum value for this expression to avoid serious embrittlement depends on the welding process,but is given as 2.8-3.0 where coarse grained weld metal exists.Step cooling can reveal the susceptibility of a steel to temper embrittlement.What are the implications of welding over existing welds Defects which are welded over,and not melted out,can suffer locally intensified strain age embrittlement by static or dynamic strain ageing at the region of concentrated strain at the flaw tip,leaving a planar defect with its tip in a region of low toughness (Dawes M G).What are the implications of welding over existing welds Defects which are welded over,and not melted out,can suffer locally intensified strain age embrittlement by static or dynamic strain ageing at the region of concentrated strain at the flaw tip,leaving a planar defect with its tip in a region of low toughness (Dawes M G).

Weldability studies in Cr-Mo-V turbine rotor steel

This study was undertaken to establish the weldability of a high pressure steam turbine rotor (1.0Cr-1.0Mo-0.25V steel).Characterization of the as-received material and subsequent evaluation of a de-embrittlement procedure suggests that such heat treatment should be carried out prior to welding.But the improvement in toughness experienced by the heat affected zone (HAZ) of welds produced on Thermal aging effect on the tensile and fatigue properties Sep 01,2019 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;The narrow-gap TIG welded joints were heat treated at 400 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#176;C for 0,2000,5000,13,000 and 30,000 h,respectively,as above this temperature the mechanism of degradation embrittlement changes ,,,and then samples were taken from the middle location of weld joints along the thickness direction.More important,the weldment is located in the middle of the specimens for LCF and uniaxialTemper-Embrittlement - an overview ScienceDirect TopicsStrain ageing is a problem of as-welded joints and its effects are completely removed by PWHT. Two modes of embrittlement have been associated with brittle fracture in steel strain ageing and temper embrittlement.Strain ageing occurs when steel containing free (uncombined) nitrogen is strained and heated,either simultaneously or at a

Study of Creep Embrittlement of 2-1/4Cr-1Mo Steel

Welding The weld used in this study was a tandem head submerged arc weld of 2-1/4 Cr-1 Mo steel.It was deposited in a 2-1/4 in.gage plate with a double-V 90 deg included angle joint config Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#173; uration.The plates were preheated to 200 F prior to welding.An interpass temperature of 350 F was main Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#173; tained.The welding parameters wereStructure and Properties of Welded Joints of 7CrMoVTiB10 Welding in the World 60 (2016) 201-216.14.Rhode M.,Mente T.,Steppan E.,Steger J.,Kannengiesser T.Hydrogen trapping in T24 Cr-Mo-V steel weld joints - microstructure effect vs.experimental influence on activation energy for diffusion.Welding in the World 62 (2018) 1-11.15.Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextInvestigation on effect of thermal aging embrittlement on This paper presents investigation results on effect of thermal aging embrittlement on residual stresses of austenitic stainless steel repair welds in nuclear components subject to seismic loads.First,the welds on austenitic stainless steel 316L plates were manufactured consisting of the austenitic stainless steel weld metal with the ferrite content sensitive to the thermal aging

Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextAging embrittlement of Super 304H steel welded joint

Table of contents Volume 32,Issue 2 .Show all volumes and issues.The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal.Some results are removed in response to a notice of local law requirement.For more information,please see here.Methodology for Estimating Thermal and Neutron Apr 28,2016 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;The effect of thermal aging on the degradation of fracture toughness and Charpy-impact properties of austenitic stainless steel (SS) welds has been characterized at reactor temperatures.The solidification behavior and the distribution and morphology of the ferrite phase in SS welds are described.

Mechanism of High Temperature Embrittlement and Loss of

Abstract.The ferritic alloys,particularly AISI Type 446 steel with its high chromium content,have desirable properties of corrosion resistance,low raw material cost,and resistance to stress corrosion cracking (SCC); yet they are not widely used in construction work because of the damaging effects of high temperature exposures (such as welding) on their corrosion resistance and ductility.Liquid Metal Embrittlement - Lucas-MilhauptLiquid Metal Embrittlement (LME) may occur in a brazing operation involving high-strength materials such as stainless steels,nickel alloys or age-hardened alloys,when the materials are stressed and come into contact with molten brazing filler metal.Many cases have been reported of stainless steel in a stress condition,failing due to LME.Jian Feng Wei Scientific.NetAgeing Embrittlement of 15Cr1Mo1V Steel Welded Joints Evaluated by Small Punch Test Authors Yu Hong Yao,Jian Feng Wei,Jiang Nan Liu,Zheng Pin Wang,Yao Hua Jin Abstract The microstructure and property of 15Cr1Mo1V steel welded joints after 70,000h service have been researched by OM,SEM,Vickers hardness test and small punch test (SPT).

Investigation on effect of thermal aging embrittlement on

This paper presents investigation results on effect of thermal aging embrittlement on residual stresses of austenitic stainless steel repair welds in nuclear components subject to seismic loads.First,the welds on austenitic stainless steel 316L plates were manufactured consisting of the austenitic stainless steel weld metal with the ferrite content sensitive to the thermal aging Hydrogen embrittlement susceptibility of weldedDec 21,2015 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;The material studied in this work was a 12 mm thick plate of 2 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#188;Cr1Mo steel,equivalent to ASTM 387 Gr 22,in normalized and temper condition with chemical composition shown in Table 1.A trapezoid-shaped grove with dimensions shown in Fig.1 was machined in the center of the plate.The welding process used to fill the grove was a multi-pass gas tungsten arc welding (GTAW) withHydrogen embrittlement susceptibility of weldedDec 21,2015 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;The material studied in this work was a 12 mm thick plate of 2 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#188;Cr1Mo steel,equivalent to ASTM 387 Gr 22,in normalized and temper condition with chemical composition shown in Table 1.A trapezoid-shaped grove with dimensions shown in Fig.1 was machined in the center of the plate.The welding process used to fill the grove was a multi-pass gas tungsten arc welding (GTAW) with

Heat Treatment of Welded Joints - Part 2 - TWI

Part 1 of this series of articles gave definitions of some of the heat treatments that may be applied to a welded joint and dealt with the operation of stress relieving a ferritic steel assembly.The temperature range within which stress relief takes place will also cause tempering of those regions in the HAZs where hard structures may have formed.Fracture Appearance Scientific.NetAgeing Embrittlement of 15Cr1Mo1V Steel Welded Joints Evaluated by Small Punch Test Authors Yu Hong Yao,Jian Feng Wei,Jiang Nan Liu,Zheng Pin Wang,Yao Hua Jin Abstract The microstructure and property of 15Cr1Mo1V steel welded joints after 70,000h service have been researched by OM,SEM,Vickers hardness test and small punch test (SPT).Fei Xue's research works Nuclear Power Institute of Fei Xue's 121 research works with 465 citations and 5,782 reads,including Long-term thermal aging performance of welding structures in primary coolant pipes for nuclear power plants

Embrittlement of austenitic stainless steel welds

The aging behavior of type-308 stainless steel weld has been examined over a range of temperatures 475--850 C for times up to 10,000 hrs.Upon aging,and depending on the temperature range,the unstable ferrite may undergo a variety of solid state transformations.These phase changes creep-rupture and Charpy impact properties.Embrittlement of austenitic stainless steel welds Effect of aging of type 308 stainless steel weld metal from 400 to 550C on microstructure was examined.Microstructural development was correlated with earlier results on mechanical properties that showed the ferrite-containing welds were prone to severe embrittlement when aged in this temperature range.Effect of welding process parameters on embrittlement of Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;In the case of low temperature aging ( Ageing Embrittlement of 15Cr1Mo1V Steel Welded Jointslt;550 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#194; Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#176;C) of weld,the five metallurgical process namely,spinodal decomposition,precipitation of alpha prime,secondary austenite,G-phase and metal carbides are identified as responsible to aging embrittlement of the ferrite phase.2.

Effect of welding process parameters on embrittlement of

Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;In the case of low temperature aging ( Ageing Embrittlement of 15Cr1Mo1V Steel Welded Jointslt;550 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#194; Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#176;C) of weld,the five metallurgical process namely,spinodal decomposition,precipitation of alpha prime,secondary austenite,G-phase and metal carbides are identified as responsible to aging embrittlement of the ferrite phase.2.Effect of Sigma Phase on Fracture Behavior of Steels and May 29,2017 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;This chapter deals with the change of the structure and mechanical properties of the austenitic steels grades TP347HFG,Super 304H and HR3C as well as their welded joints after the exposure at temperatures corresponding to the ultra-super critical (USC) and advanced ultra-super critical (A-USC) parameters.Several tube bend radii were investigated in order to understand relationAuthor Yu Hong Yao,Jian Feng Wei,Jiang Nan Liu,Zheng Pin Wang,Yao Hua JinPublish Year 2010Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints Download Citation Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints Evaluated by Small Punch Test The microstructure and property of 15Cr1Mo1V steel welded joints after 70,000h service

Aging embrittlement of Super 304H steel welded joint

Table of contents Volume 32,Issue 2 .Show all volumes and issues.The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal.Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints The microstructure and property of 15Cr1Mo1V steel welded joints after 70,000h service have been researched by OM,SEM,Vickers hardness test and small punch test (SPT).The microstructure of 15Cr1Mo1V steel welded joints after service became coarse and the grain boundary became vague.More carbide particles were observed in welded joints after service.Ageing Effects on Microstructure,Mechanical Properties Jan 01,2017 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;Free Online Library Ageing Effects on Microstructure,Mechanical Properties,and Fracture Behaviour of 9Cr-1.5Mo-1Co-VNbBN Martensitic Steel Welded Joint for High Temperature Application.(Research Article) by Advances in Materials Science and Engineering; Engineering and manufacturing Hardness Mechanical properties Hardness (Materials) Welding

Advanced Materials Research Vols.160-162 p.23

Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints Evaluated by Small Punch Test Authors Yu Hong Yao,Jian Feng Wei,Jiang Nan Liu,Zheng Pin Wang,Yao Hua Jin Abstract The microstructure and property of 15Cr1Mo1V steel welded joints after 70,000h service have been researched by OM,SEM,Vickers hardness test and small punch test (SPT).About heat treatment and properties of Duplex Stainless Apr 01,2020 Ageing Embrittlement of 15Cr1Mo1V Steel Welded Joints#0183;Purpose The aim of the current study is to reveal the influence of welding conditions on structure and stresscorrosion cracking resistance of dissimilar stainless steels butt welded joints.Design (PDF) Effect of nitrogen on toughness and strain age Manual metal arc CMn steel weld metals with nitrogen contents between 80 and 210 ppm (wt) were investigated under four different post-weld conditions,namely,(i) as welded,(ii) stress

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