Effects of a Small Addition of Cu or Ge on the Microstructure and Mechanical Property of an Al-Si Alloy

2006 ◽  
pp. 425-430
Author(s):  
Keiyu Nakagawa ◽  
Teruto Kanadani ◽  
Kenich Nakayama ◽  
Akira Sakakibara
Keyword(s):  
Mechanical Property ◽  
Small Addition ◽  
Microstructure And Mechanical Property

Effects of a Small Addition of Cu or Ge on the Microstructure and Mechanical Property of an Al-Si Alloy

2006 ◽  
Vol 519-521 ◽  
pp. 425-430 ◽  
Author(s):  
Keiyu Nakagawa ◽  
Teruto Kanadani ◽  
Kenich Nakayama ◽  
Akira Sakakibara
Keyword(s):  
Mechanical Property ◽  
Tensile Strength ◽  
Fatigue Strength ◽  
Grain Boundary ◽  
Binary Alloy ◽  
Tensile Loading ◽  
Small Addition ◽  
Microstructure And Mechanical Property

In this study, we investigated the effects of a small addition of Cu (0.1%) or Ge (0.1%) on the microstructure and mechanical property of Al-Si alloys. The results are as follows. The size of precipitates in the Cu-added or Ge-added alloys is smaller than that in the binary alloy. The size of the precipitates at the grain boundary in the Cu-added or Ge-added alloys is larger than the size of the precipitates in the binary alloy. However, the number of the precipitates at the grain boundary in the Cu-added and Ge-added alloys is smaller than that in the binary alloy. It was found that a small addition of Cu or Ge has the effect of raising the fatigue strength under repeated tensile loading as well as the tensile strength.

Effect of milling on the microstructure and mechanical property of austenite stainless steel

2020 ◽  
Vol 62 (12) ◽  
pp. 1181-1186
Author(s):  
Huanchun Wu ◽  
Wenxin Ti ◽  
Guodong Zhang ◽  
Fei Xue ◽  
Chengtao Li ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Stainless Steel ◽  
Austenite Stainless Steel ◽  
Microstructure And Mechanical Property

Effects of Nano-Al2O3 on the Mechanical Property and Microstructure of Nano-Micro Composite Self-Lubricating Ceramic Tool Material

2013 ◽  
Vol 770 ◽  
pp. 308-311 ◽  
Author(s):  
Ming Dong Yi ◽  
Chong Hai Xu ◽  
Zhao Qiang Chen ◽  
Guang Yong Wu
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Tool Material ◽  
Ceramic Tool ◽  
Ceramic Tool Material ◽  
Composite Self ◽  
Microstructure And Mechanical Property ◽  
Grain Refinement Strengthening

A new nanomicro composite self-lubricating ceramic tool material was prepared with vacuum hot pressing technique. The effect of nanoAl2O3 powders on the microstructure and mechanical properties of nanomicro composite self-lubricating ceramic tool material was investigated. With the increase of nanoAl2O3 content, the hardness and fracture toughness first up then down. When the nanoAl2O3 content is 4 vol.%, the flexural strength, hardness and fracture toughness reaches 562 MPa, 8.46 MPa·m1/2 and 18.95 GPa, respectively. The microstructure and mechanical property of nanomicro composite self-lubricating ceramic tool material can be improved by the grain refinement strengthening of nanoAl2O3.

Microstructure Observation and Analysis of Sintered SiC Ceramics by SEM

2013 ◽  
Vol 544 ◽  
pp. 200-204
Author(s):  
Yong Jiang ◽  
Lan Er Wu ◽  
Zhen Kun Huang
Keyword(s):  
Mechanical Property ◽  
Powder Mixture ◽  
Flow Path ◽  
Structure Defects ◽  
Microstructure Observation ◽  
Sic Ceramics ◽  
Compositional Design ◽  
Spray Granulation ◽  
Microstructure And Mechanical Property

Comparison of microstructures between LPSed and SSSed SiC ceramics were made. Several kinds of structure defects for LPSed SiC were emphasized to discuss. They related with whole flow path of processing, compositional design of powder mixture, spray granulation of powder mixture, milling, shaping, and sintering control. All could affect the microstructure and mechanical property of resultant ceramics.

Effect of cobalt-aluminate addition on microstructure and mechanical property of Co–Cr–Mo alloy

2015 ◽  
Vol 19 (sup1) ◽  
pp. S1-66-S1-69 ◽  
Author(s):  
H. C. Lee ◽  
K. D. Wo ◽  
D. S. Kang ◽  
T. Lee ◽  
S. T. Oh ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Cobalt Aluminate ◽  
Microstructure And Mechanical Property

Effect of Quaternary Ammonium-Modified Montmorillonites on Mechanical Properties of Polypropylene

1998 ◽  
Vol 520 ◽  
Author(s):  
Y. H. Zhang ◽  
K. C. Gong
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Tensile Strength ◽  
Impact Strength ◽  
Quaternary Ammonium ◽  
Small Addition ◽  
Pp Composites ◽  
Addition Amount

ABSTRACTHybrids of quaternary ammonium-modified montmorillonites and polypropylene were prepared by melting intercalation. Results of mechanical property measurements show that, tensile strength, modulus and impact strength of PP composites are greatly enhanced simultaneously by a small addition amount of modified montmorillonites.

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