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

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

scholarly journals Effect of Dendrite Fraction on the M23C6 Precipitation Behavior and the Mechanical Properties of High Cr White Irons

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1576
Author(s):  
Jun-Seok Oh ◽  
Young-Gy Song ◽  
Baig-Gyu Choi ◽  
Chalothorn Bhamornsut ◽  
Rujeeporn Nakkuntod ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Primary Dendrite ◽  
Carbide Precipitation ◽  
Eutectic Phase ◽  
M23c6 Carbide ◽  
Eutectic Solidification ◽  
Precipitation Behavior ◽  
Conventional Heat Treatment ◽  
High Fraction

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.

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

2015 ◽  
Vol 46 (9) ◽  
pp. 4020-4026 ◽  
Author(s):  
Tae-Hyuk Lee ◽  
Young-Jun Lee ◽  
Sin-Hyeon Joo ◽  
Hayk H. Nersisyan ◽  
Kyoung-Tae Park ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbide Precipitation ◽  
M23c6 Carbide ◽  
Precipitation Behavior ◽  
Inconel 690

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

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.

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

2020 ◽  
Vol 47 ◽  
pp. 122-130 ◽  
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

Effects of cooling rate on the mechanical properties of dual phase treated vanadium steels

1983 ◽  
Vol 41 ◽  
pp. 220-221
Author(s):  
L.J. Chen ◽  
H.C. Cheng ◽  
J.R. Gong ◽  
J.G. Yang
Keyword(s):  
Mechanical Properties ◽  
Cooling Rate ◽  
Automobile Industry ◽  
High Strength ◽  
Weight Percent ◽  
Low Alloy Steels ◽  
Dual Phase ◽  
Resource Requirement ◽  
Alloy Steels ◽  
Potential Weight

For fuel savings as well as energy and resource requirement, high strength low alloy steels (HSLA) are of particular interest to automobile industry because of the potential weight reduction which can be achieved by using thinner section of these steels to carry the same load and thus to improve the fuel mileage. Dual phase treatment has been utilized to obtain superior strength and ductility combinations compared to the HSLA of identical composition. Recently, cooling rate following heat treatment was found to be important to the tensile properties of the dual phase steels. In this paper, we report the results of the investigation of cooling rate on the microstructures and mechanical properties of several vanadium HSLA steels.The steels with composition (in weight percent) listed below were supplied by China Steel Corporation: 1. low V steel (0.11C, 0.65Si, 1.63Mn, 0.015P, 0.008S, 0.084Aℓ, 0.004V), 2. 0.059V steel (0.13C, 0.62S1, 1.59Mn, 0.012P, 0.008S, 0.065Aℓ, 0.059V), 3. 0.10V steel (0.11C, 0.58Si, 1.58Mn, 0.017P, 0.008S, 0.068Aℓ, 0.10V).

AK STEEL TYPE 304L

Alloy Digest ◽  
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.

Precipitation Behavior of Carbide and its Effect on the Mechanical Properties of a Novel Fe60Co10Cr10Ni10Mo5V5 Medium-Entropy Alloy

JOM ◽  
2021 ◽  
Vol 73 (2) ◽  
pp. 668-678
Author(s):  
Hebin Wang ◽  
Da Hong ◽  
Longgang Hou ◽  
Ping Ou ◽  
Li Shen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Precipitation Behavior
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