Intergranular M23C6 Carbide Precipitation Behavior and Its Effect on Mechanical Properties of Inconel 690 Tubes

High Cr white irons with various fractions of primary dendrite have been prepared through the modification of their chemical composition. Increasing C and Cr contents decreased the primary dendrite fraction. Eutectic solidification occurred with the phase fraction ratio of austenite: M7C3 = 2.76:1. The measured primary dendrite fractions were similar to the calculated results. ThermoCalc calculation successfully predicted fractions of M7C3, austenite, and M23C6. Conventional heat treatment at high temperature caused a destabilization of austenite, releasing it’s solute elements to form M23C6 carbide. Precipitation of M23C6 during destabilization preferentially occurred within primary (austenite) dendrite, however, the precipitation scarcely occurred within austenite in eutectic phase. Thus, M23C6 precipitation by destabilization was relatively easy in alloys with a high fraction of primary dendrite.

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Effects of Nb and Tempering Time on Carbide Precipitation Behavior and Mechanical Properties of Cr-Mo-V Steel for Brake Discs

steel research international ◽

10.1002/srin.201700491 ◽

2018 ◽

Vol 89 (5) ◽

pp. 1700491 ◽

Cited By ~ 6

Author(s):

Dan Wu ◽

Fuming Wang ◽

Jin Cheng ◽

Changrong Li

Keyword(s):

Mechanical Properties ◽

Carbide Precipitation ◽

Precipitation Behavior ◽

Brake Discs ◽

Tempering Time

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Effect of Solution Treatment Temperature on Microstructure and Mechanical Properties of Cr20Ni32AlTi Alloy

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.194-196.1225 ◽

2011 ◽

Vol 194-196 ◽

pp. 1225-1230

Author(s):

Chang Chun Yang ◽

Yong Lin Kang ◽

Sheng Qin ◽

Li Xin Wang

Keyword(s):

Mechanical Properties ◽

Solution Treatment ◽

Carbide Precipitation ◽

Treatment Temperature ◽

Solution Temperature ◽

Solution Treatment Temperature ◽

Precipitation Behavior ◽

Soaking Time ◽

Average Grain Size ◽

Optimum Solution

The effect of solution treatment from 1050°C to 1200°C, soaking time 15min on microstructure, mechanical properties and precipitation behavior of Cr20Ni32AlTi alloy was investigated. The results are as follows: with the increasing of the solution treatment temperature from 1050°C to 1200°C, the average grain size increases remarkably from 17μm to 110μm, the strength of alloy decreases while the elongation increases. The amount of carbide precipitation in the alloy decreases with the increasing of solid solution temperature. The optimum solution treatment temperature for the investigated Cr20Ni32AlTi alloy is 1150°C~1200°C.

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Influence of Martensitic Structure and Carbide Precipitation Behavior on Mechanical Properties of 25CrMoNbB Alloy Steels with Mo Contents of 0.25 and 0.5 Pct

Metallurgical and Materials Transactions A ◽

10.1007/s11661-018-4766-1 ◽

2018 ◽

Vol 49 (10) ◽

pp. 4565-4580

Author(s):

Yaxu Zheng ◽

Fuming Wang ◽

Warren M. Garrison ◽

Yu Lin ◽

Changrong Li

Keyword(s):

Mechanical Properties ◽

Carbide Precipitation ◽

Martensitic Structure ◽

Precipitation Behavior ◽

Alloy Steels

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Carbide precipitation behavior and mechanical properties of micro-alloyed medium Mn steel

Journal of Material Science and Technology ◽

10.1016/j.jmst.2019.12.024 ◽

2020 ◽

Vol 47 ◽

pp. 122-130 ◽

Cited By ~ 3

Author(s):

Luhan Hao ◽

Xiang Ji ◽

Guangqian Zhang ◽

Wei Zhao ◽

Mingyue Sun ◽

...

Keyword(s):

Mechanical Properties ◽

Carbide Precipitation ◽

Precipitation Behavior ◽

Medium Mn Steel ◽

Mn Steel

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AK STEEL TYPE 304L

Alloy Digest ◽

10.31399/asm.ad.ss1324 ◽

2020 ◽

Vol 69 (8) ◽

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Corrosion Resistance ◽

Heat Treating ◽

Stress Relief ◽

Carbide Precipitation ◽

Low Carbon ◽

Steel Type ◽

Temperature Performance ◽

Type 304

Abstract AK Steel Type 304L is a chromium-nickel austenitic stainless steel. It is an extra low-carbon variation of Type 304 with a 0.030% maximum carbon content that eliminates carbide precipitation due to welding. As a result, this alloy can be used in the “as-welded” condition, even in severe corrosive conditions. In many cases it eliminates the necessity of annealing weldments except for applications specifying stress relief. Type 304L has slightly lower mechanical properties than Type 304. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance, corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1324. Producer or Source: AK Steel Corporation.

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