scholarly journals Effect of heat treatment on the microstructure and properties of in-situ Mg2Si reinforced hypereutectic Al-18%Si matrix composites

2020 ◽  
Vol 7 (8) ◽  
pp. 086515
Author(s):  
Kai Xu ◽  
Jianjun Wang ◽  
Shuquan Zhang
Keyword(s):  
Heat Treatment ◽  
Matrix Composites ◽  
Microstructure And Properties

In Situ Production of (Fe,Cr)7C3 Particulate Bundles Reinforced Iron Matrix Composites

2012 ◽  
Vol 602-604 ◽  
pp. 456-459
Author(s):  
Jing Lai Tian ◽  
Fang Xia Ye ◽  
Li Sheng Zhong ◽  
Yun Hua Xu
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
White Cast Iron ◽  
Treatment Time ◽  
Reference Sample ◽  
Chemical Compositions ◽  
Matrix Composites ◽  
Iron Matrix ◽  
Pin On Disc

In-situ production of (Fe,Cr)7C3 particulate bundles -reinforced iron matrix composite was prepared by infiltration casting between Cr wires and white cast iron at 1200°C plus subsequent heat treatment. The composites under different heat treatment times were comparatively characterized by scanning electron microscopy (SEM) and pin-on-disc wear resistance tests. The results show that the area of the particle bundles gradually increases with the heat treatment time increasing, and the chemical compositions change from eutectic to hypoeutectic, the morphologies of the reinforcements present chrysanthemum-shaped, granular and intercrystalline eutectics. Under 5 N loads, the composites appear excellent wear resistance, which is 36 times for the reference sample.

Infiltration Casting and In Situ Fabrication of (Fe,Cr)7C3 Particulates Bundle – Reinforced Iron Matrix Composites

2011 ◽  
Vol 284-286 ◽  
pp. 273-276
Author(s):  
Li Sheng Zhong ◽  
Yun Hua Xu ◽  
Xin Cheng Liu ◽  
Fang Xia Ye ◽  
Jing Lai Tian ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Iron ◽  
Phase Analysis ◽  
Matrix Composite ◽  
Treatment Process ◽  
Heat Treatment Process ◽  
Matrix Composites ◽  
Iron Matrix

The method of infiltration casting plus heat treatment process employing chromium wires and cast iron applied to in-situ synthesized (Fe,Cr)7C3 particulates bundle reinforced iron matrix composites. The phase analysis, microstructure, microhardness and wear-resistance of composite were observed and measured. The results show that it is possible to fabricate (Fe,Cr)7C3 particulates bundle reinforced iron matrix composite produced by this technology, and a special structure which called particulates bundle was fabricated. (Fe,Cr)7C3 particulates bundle were distributed in the forms of granular, lath-shaped and hexagon-shaped in the particulates bundle. The macrohardness of particulates bundle was 52 HRC, and the relative wear resistance of the composites is 2.3—23 times higher than that of the cast iron.

The effect of heat treatment on mechanical properties of in situ synthesized 7715D titanium matrix composites

2010 ◽  
Vol 527 (16-17) ◽  
pp. 4312-4319 ◽  
Author(s):  
Peipei Wang ◽  
Liqiang Wang ◽  
Weijie Lu ◽  
Jining Qin ◽  
Yifei Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites

Microstructure and properties of 6111Al matrix composites reinforced by the cooperation of in situ ZrB2 particles and Y

2020 ◽  
Vol 829 ◽  
pp. 154624 ◽  
Author(s):  
Wei Qian ◽  
Yutao Zhao ◽  
Xizhou Kai ◽  
Yufei Yan ◽  
Xu Gao ◽  
...  
Keyword(s):  
Matrix Composites ◽  
Microstructure And Properties

Microstructure and Wear Properties of In Situ Production of (Fe,Cr)7C3 Particulate Bundles Reinforced Iron Matrix Composites

2013 ◽  
Vol 652-654 ◽  
pp. 64-68 ◽  
Author(s):  
Jing Lai Tian ◽  
Fang Xia Ye ◽  
Li Sheng Zhong ◽  
Yun Hua Xu
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Treatment Time ◽  
Heat Treatment Time ◽  
Wear Testing ◽  
Dry Sliding Wear ◽  
Matrix Composites ◽  
Wear Properties ◽  
Iron Matrix

In-situ production of (Fe,Cr)7C3 particulate bundles-reinforced iron matrix composites were prepared by infiltration casting between Cr wires and white cast iron at 1200°C plus subsequent heat treatment. The composites prepared under different heat treatment time were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), macrohardness test and pin-on-disc wear resistance test. The results show that the composite is mainly consist of (Fe,Cr)7C3 carbides and γ-Fe. The area of the particulate bundles gradually increases with the increase of heat treatment time, the microstructure evolved from eutectic to hypoeutectic, and the morphologies of the reinforcements present chrysanthemum-shaped, granular and intercrystalline eutectics, respectively. The (Fe,Cr)7C3 particulate bundles reinforced composite has high macrohardness and excellent wear resistance under dry sliding wear testing conditons.

Microstructural Evolution of In Situ (Fe,Cr)7C3 Particles Reinforced Iron Matrix Composites

2012 ◽  
Vol 503-504 ◽  
pp. 408-411
Author(s):  
Li Bin Niu ◽  
Jing Lai Tian ◽  
Xiao Gang Wang
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
Cross Section ◽  
Microstructural Evolution ◽  
Gray Cast Iron ◽  
Treatment Time ◽  
Matrix Composites ◽  
Iron Matrix ◽  
Metallurgical Bonding

A kind of (Fe,Cr)7C3particles reinforced iron matrix composite was prepared by metallurgical bonding between Cr wires and gray cast iron at 1200°C with subsequent heat treatment. The obtained composites were comparatively characterized by XRD, SEM and microhardness tests. The results showed that the composites mainly consisted of α-Fe matrix and the reinforcements of particle bundles, which include (Fe,Cr)7C3 carbides and γ-Fe. The cross-section of the reinforcements gradually increase with heat treatment time, and the microstructures change from eutectic to hypoeutectic, the morphologies of the reinforcements present chrysanthemum-shaped, granular and intercrystalline eutectics.

Effect Of Heat Treatment On Microstructure And Properties of High Entropy Alloy Reinforced Titanium Metal Matrix Composites

2019 ◽  
Vol 18 ◽  
pp. 2409-2414
Author(s):  
CH.V. Satyanarayanaraju ◽  
Rahul Dixit ◽  
Pooja Miryalkar ◽  
S. Karunanidhi ◽  
A. AshokKumar ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
High Entropy Alloy ◽  
Matrix Composites ◽  
Titanium Metal ◽  
High Entropy ◽  
Microstructure And Properties
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