Influence of impurities on the properties of powder metallurgy and cast iron-manganese alloys

1988 ◽  
Vol 27 (6) ◽  
pp. 459-463
Author(s):  
T. F. Volynova ◽  
I. B. Medov ◽  
I. B. Sidorova
Keyword(s):  
Cast Iron ◽  
Powder Metallurgy ◽  
Manganese Alloys ◽  
Iron Manganese ◽  
Influence Of Impurities

Solid Solution Effects and Deformation Micros trueture of Shock-Loaded Iron Manganese Alloys

1970 ◽  
Vol 28 ◽  
pp. 420-421
Author(s):  
A. Christou ◽  
J. V. Foltz ◽  
N. Brown
Keyword(s):  
Solid Solution ◽  
Shock Loading ◽  
High Strain ◽  
Local Stress ◽  
Strain Rates ◽  
Local Stress Concentration ◽  
Bcc Metals ◽  
Manganese Alloys ◽  
Iron Manganese ◽  
Transmission Microscope

In general, all BCC transition metals have been observed to twin under appropriate conditions. At the present time various experimental reports of solid solution effects on BCC metals have been made. Indications are that solid solution effects are important in the formation of twins. The formation of twins in metals and alloys may be explained in terms of dislocation mechanisms. It has been suggested that twins are nucleated by the achievement of local stress-concentration of the order of 15 to 45 times the applied stress. Prietner and Leslie have found that twins in BCC metals are nucleated at intersections of (110) and (112) or (112) and (112) type of planes.In this paper, observations are reported of a transmission microscope study of the iron manganese series under conditions in which twins both were and were not formed. High strain rates produced by shock loading provided the appropriate deformation conditions. The workhardening mechanisms of one alloy (Fe - 7.37 wt% Mn) were studied in detail.

Environmental effects in iron-manganese alloys

1978 ◽  
Vol 25 (8) ◽  
pp. 597-600 ◽  
Author(s):  
P. Radhakrishna ◽  
F. Livet
Keyword(s):  
Environmental Effects ◽  
Manganese Alloys ◽  
Iron Manganese

Sliding wear behaviour of Al-Si alloy–fly ash composites produced by powder metallurgy technique

2017 ◽  
Vol 69 (2) ◽  
pp. 241-247 ◽  
Author(s):  
H. Siddhi Jailani ◽  
A. Rajadurai ◽  
B. Mohan ◽  
T. Sornakumar
Keyword(s):  
Cast Iron ◽  
Fly Ash ◽  
Powder Metallurgy ◽  
Alloy Powder ◽  
Base Alloy ◽  
Wear Behaviour ◽  
Damping Capacity ◽  
Powder Metallurgy Technique ◽  
Sliding Speed ◽  
Content Type

Purpose Metal matrix composites (MMCs) are commonly used in many aerospace and industrial applications. MMCs possess significantly improved properties including high specific strength, specific modulus, damping capacity and good wear resistance compared to unreinforced alloys. The purpose of this paper is to describe the tribological studies of Al-Si alloy–fly ash composites manufactured using powder metallurgy technique. Design/methodology/approach Al-Si (12 Wt.%) alloy–fly ash composites were developed using powder metallurgy technique. Al-Si alloy powder was used as matrix material, and the fly ash was used as reinforcement. The particle size of Al-Si alloy powder was in the range of 75-300 μm, and the fly ash was in the range of 1-15 μm. The friction and wear characteristics of the composites were studied using a pin-on-disc set up. The test specimen was mated against cast iron disc, and the tests were conducted with the loads of 10, 20 and 30 N, sliding speeds of 0.5, 1 and 1.5 m/s for a sliding distance of 2,000 m. Findings The effects of load and sliding speed on tribological properties of the base alloy and Al-Si alloy–fly ash composites pins on sliding with cast iron disc are evaluated. The wear rate of Al-Si alloy–fly ash composites is lower than that of base alloy, and it increases with increasing load and sliding speed. The coefficient of friction of Al-Si alloy–fly ash composites is increased as compared with base alloy. Practical implications The development of Al-Si alloy–fly ash composites produced by powder metallurgy technique will modernize the automobile and other industries because near net shape at low cost and good mechanical properties are obtained. Originality/value There are few papers available on the development and tribological studies of Al-Si alloy–fly ash composites produced by powder metallurgy technique.

scholarly journals Wear and corrosion resistant Mn-doped austenitic cast iron prepared by powder metallurgy method

2020 ◽  
Vol 9 (3) ◽  
pp. 6376-6385 ◽  
Author(s):  
Xiangrong Li ◽  
Junbo Liu ◽  
Ji Xiong ◽  
Lu Yang ◽  
Qingshan Gou ◽  
...  
Keyword(s):  
Cast Iron ◽  
Powder Metallurgy ◽  
Powder Metallurgy Method ◽  
Corrosion Resistant ◽  
Wear And Corrosion ◽  
Austenitic Cast Iron ◽  
Mn Doped

Mechanical properties of iron-manganese alloys of high and commercial purities

1985 ◽  
Vol 17 (6) ◽  
pp. 791-798
Author(s):  
T. F. Volynova ◽  
V. M. Mnasin ◽  
I. B. Sidorova
Keyword(s):  
Mechanical Properties ◽  
Manganese Alloys ◽  
Iron Manganese
Sign in / Sign up

Export Citation Format

Share Document