An experimental and computational methodology for near net shape fabrication of thin walled ceramic structures by plasma spray forming

2010 ◽  
Vol 210 (10) ◽  
pp. 1260-1269 ◽  
Author(s):  
Riken R. Patel ◽  
Anup Kumar Keshri ◽  
George S. Dulikravich ◽  
Arvind Agarwal
Keyword(s):  
Plasma Spray ◽  
Spray Forming ◽  
Plasma Spray Forming ◽  
Near Net Shape ◽  
Thin Walled ◽  
Computational Methodology

Near-net-shape 95W–3.5Ni–1.5Fe thin-walled products produced by plasma spray forming

2010 ◽  
Vol 527 (21-22) ◽  
pp. 5782-5789 ◽  
Author(s):  
Y.M. Wang ◽  
X. Xiong ◽  
X.B. Min ◽  
L. Xie ◽  
F. Zheng
Keyword(s):  
Plasma Spray ◽  
Spray Forming ◽  
Plasma Spray Forming ◽  
Near Net Shape ◽  
Thin Walled

Consolidation and Mechanical Properties of Near-Net-Shape Al-21 wt.% Si Component Fabricated by Plasma Spray Forming

2007 ◽  
Vol 119 ◽  
pp. 183-186 ◽  
Author(s):  
Soon Jik Hong ◽  
S. Patil ◽  
Chang Kyu Rhee ◽  
S. Seal
Keyword(s):  
Mechanical Properties ◽  
Plasma Spray ◽  
Room Temperature ◽  
Spray Forming ◽  
Homogeneous Distribution ◽  
Cast Material ◽  
Plasma Spray Forming ◽  
Fine Microstructure ◽  
Near Net Shape ◽  
Increased Strength

The microstructure and mechanical properties of Al-21 wt% Si components fabricated by plasma spray forming are analyzed. The microstructure of the plasma spry formed component showed a homogeneous distribution of fine Si particles embedded in the Al matrix. The grain size of α-Al varied between 200 to 500 nm and the size of the Si particles was about 50 to 100 nm in the plasma spray formed component. The room temperature tensile strength of the plasma spray formed component was 215 MPa with 0.5 % elongation, while for cast material, it was 130 MPa. Despite the porosities, the ultra-fine microstructure and homogeneous distribution of Si particles embedded in matrix are the foundation of the increased strength of the plasma spry formed component.

scholarly journals Near-Net-Shape Tungsten–Rhenium Alloy Parts Produced by Plasma Spray Forming and Hot Isostatic Pressing

2014 ◽  
Vol 55 (4) ◽  
pp. 713-721 ◽  
Author(s):  
Yueming Wang ◽  
Xiang Xiong ◽  
Weizhong Zhao ◽  
Lu Xie ◽  
Jianhui Yan ◽  
...  
Keyword(s):  
Plasma Spray ◽  
Hot Isostatic Pressing ◽  
Spray Forming ◽  
Plasma Spray Forming ◽  
Isostatic Pressing ◽  
Near Net Shape ◽  
Rhenium Alloy

scholarly journals Near-Net-Shape Molybdenum Parts Produced by Plasma Spray Forming

2011 ◽  
Vol 52 (6) ◽  
pp. 1269-1275 ◽  
Author(s):  
Yueming Wang ◽  
Xiang Xiong ◽  
Lu Xie ◽  
Xuan Xu ◽  
Xiaobing Min ◽  
...  
Keyword(s):  
Plasma Spray ◽  
Spray Forming ◽  
Plasma Spray Forming ◽  
Near Net Shape

Vacuum Plasma Spray Forming of High Temperature Silicides

1993 ◽  
Vol 322 ◽  
Author(s):  
S. Sampath ◽  
H. Herman
Keyword(s):  
High Temperature ◽  
Plasma Spray ◽  
Molybdenum Disilicide ◽  
Spray Forming ◽  
Vacuum Plasma Spray ◽  
Plasma Spray Forming ◽  
Fine Grained ◽  
Vacuum Plasma ◽  
Near Net Shape ◽  
Relationship Of

AbstractMolybdenum disilicide and its composites have been fabricated by a number of researchers in recent years through vacuum plasma spray (VPS) forming. VPS is capable of producing dense, fine grained deposits of these high temperature intermetallics and is a promising technique for near-net-shape manufacturing. Reviewed here is VPS forming of high temperature silicide intermetallics, principally Mosi2 and its composites. A discussion will be given of the processing-structure-properties relationship of the spray formed silicide.

Thermomechanical Simulation of Single Splat Solidification and Cooling in Plasma Spray Forming

2010 ◽  
Vol 102-104 ◽  
pp. 719-723
Author(s):  
Liang Rong Zhu ◽  
Hao Ping Zeng ◽  
Wen Ji Xu ◽  
Hong You Li
Keyword(s):  
Residual Stress ◽  
Plasma Spray ◽  
Steel Substrate ◽  
Element Model ◽  
Spray Forming ◽  
Plasma Spray Forming ◽  
Initial Stage ◽  
Minimum Residual ◽  
Thermomechanical Simulation ◽  
Stress States

Mechanical strength and service life of the coatings manufactured by plasma spray forming are significantly reduced by residual stresses. A 2D finite element model constructed for temperature and residual stress simulation of a single stainless steel splat solidifying and cooling on the carbon steel substrate is presented in this paper. Simulated results show that the temperature of the splat rim is higher than that of the central part during the initial stage of solidification, and the temperature difference between the two parts reverse thereafter. The minimum residual stress locates at the rim of the top surface of the splat, and the maximum residual stress, which decreases when the substrate is preheated to a higher temperature, situates at the rim of the interface. Stresses appear as tensile stresses within the splat and compressive stresses within the substrate. The research can provide quantitative understanding of the temperature and residual stress states at the splat level.

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