Effects of chromium addition on structure and mechanical properties of Ti–10Zr alloy

2009 ◽  
Vol 484 (1-2) ◽  
pp. 524-528 ◽  
Author(s):  
Chung-Hsiao Cheng ◽  
Hsueh-Chuan Hsu ◽  
Shih-Ching Wu ◽  
Hsiao-Wei Wang ◽  
Wen-Fu Ho
Keyword(s):  
Mechanical Properties ◽  
Chromium Addition

Study on Cast Ni3 Al-Base alloys

1988 ◽  
Vol 133 ◽  
Author(s):  
Zhou Yizhang ◽  
Zhang Tianxiang ◽  
Tong Yingjie ◽  
Zhang Bingda ◽  
Zhu Yaoxiao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Intermetallic Compound ◽  
Alloying Elements ◽  
Chromium Addition

ABSTRACTA series of cast Ni3Al-base alloys with the addition of alloying elements, such as Hf, Zr, Ti, Nb etc., have been studied, in which the total amount of Al and alloying elements substituting for Al was controlled in the range of 18 to 23 at%. It was found the alloying elements change remarkably the morphology, distribution and amount of γ phase as well as the morphology and size of primary γ′ intermetallic compound. The size of primary γ′ can be decreased to micron order. The brittle γ′-γ′ boundary (refer to primary γ′) can be substituted by tough γ′-γ-γ′ boundary. As a result, the mechanical properties of the cast Ni3Al-base alloys, especially high temperature ductility, can be enhanced. In addition, the effect of Cr is discussed when tested in air environment, and considered that chromium addition is not very effective to improve the high temperature embrittlement.

scholarly journals Effect of Intensive Cooling of Alloy AZ91 with a Chromium Addition on the Microstructure and Mechanical Properties of the Casting

2017 ◽  
Vol 62 (4) ◽  
pp. 2199-2204
Author(s):  
C. Rapiejko ◽  
B. Pisarek ◽  
T. Pacyniak
Keyword(s):  
Mechanical Properties ◽  
Thermal Effects ◽  
Room Temperature ◽  
Optical Microscope ◽  
Strength Properties ◽  
Chromium Addition ◽  
Alloy Az91 ◽  
Microstructure And Mechanical Properties ◽  
Kinetics And Dynamics ◽  
Made In

AbstractThe work presents the results of the investigations of the effect of intensive cooling of alloy AZ91 with an addition of chromium on the microstructure and mechanical properties of the obtained casts. The experimental castings were made in ceramic moulds preliminarily heated to 180°C, into which alloy AZ91 with the addition was poured. Within the implementation of the research, a comparison was made of the microstructure and mechanical properties of the castings obtained in ceramic moulds cooled at room temperature and the ones intensively cooled in a cooling liquid. The kinetics and dynamics as well as the thermal effects recorded by the TDA method were compared. Metallographic tests were performed with the use of an optical microscope and the strength properties of the obtained castings were examined: UTS (Rm), elongation (A%), and HB hardness.

Effects of chromium addition on structure and mechanical properties of Ti–5Mo alloy

2015 ◽  
Vol 65 ◽  
pp. 700-706 ◽  
Author(s):  
Hsueh-Chuan Hsu ◽  
Shih-Ching Wu ◽  
Shih-Kuang Hsu ◽  
Chien-Ting Li ◽  
Wen-Fu Ho
Keyword(s):  
Mechanical Properties ◽  
Chromium Addition

Evaluation of the Mechanical Properties and Corrosion Resistance of Al-2.5Mg-Cr Alloys

1992 ◽  
Vol 114 (1) ◽  
pp. 51-55 ◽  
Author(s):  
A. N. Shuaib ◽  
Z. Ahmad
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Arabian Gulf ◽  
Development Program ◽  
Optimum Combination ◽  
Chromium Addition ◽  
Beneficial Effects ◽  
Mechanical Properties And Corrosion

The results of this paper relate to a development program designed to improve the corrosion resistance and mechanical properties of Al-2.5Mg alloys, by the addition of chromium and silicon, for desalination applications. The effect of 0.1 wt to 0.3 wt percent chromium addition on the mechanical properties and corrosion resistance of Al-2.5Mg in the Arabian Gulf water has been investigated. The results show that chromium addition has beneficial effects on the mechanical properties and corrosion resistance of the Al-2.5Mg alloys. A near optimum combination of mechanical properties and corrosion resistance is obtained by 0.2 wt and 0.3 wt percent chromium addition.

Phase Transformations in Ti-7w/oMo-3w/oMe Alloy

1974 ◽  
Vol 32 ◽  
pp. 514-515
Author(s):  
S. Fujishiro
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Transmission Electron Microscopy ◽  
Tensile Strength ◽  
Mechanical Processing ◽  
Ray Method ◽  
X Ray ◽  
Transmission Electron ◽  
Water Quench ◽  
Alpha Beta

The mechanical properties of three titanium alloys (Ti-7Mo-3Al, Ti-7Mo- 3Cu and Ti-7Mo-3Ta) were evaluated as function of: 1) Solutionizing in the beta field and aging, 2) Thermal Mechanical Processing in the beta field and aging, 3) Solutionizing in the alpha + beta field and aging. The samples were isothermally aged in the temperature range 300° to 700*C for 4 to 24 hours, followed by a water quench. Transmission electron microscopy and X-ray method were used to identify the phase formed. All three alloys solutionized at 1050°C (beta field) transformed to martensitic alpha (alpha prime) upon being water quenched. Despite this heavily strained alpha prime, which is characterized by microtwins the tensile strength of the as-quenched alloys is relatively low and the elongation is as high as 30%.

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