SCREW, MACHINE – DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, NICKEL ALLOY (UNS N07001), .3750-24 UNJF-3A

2021 ◽  
Author(s):  
Keyword(s):  
Alloy Digest ◽  
2016 ◽  
Vol 65 (8) ◽  

Abstract Brush 1916 is a heat-treatable leaded copper-nickel alloy engineered for automatic screw machine applications. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on forming, heat treating, and machining. Filing Code: Cu-850. Producer or source: Materion Performance Alloys.


Author(s):  
Q.Z. Chen ◽  
X.F. Wu ◽  
T. Ko

Some butterfly martensite nuclei were observed in an Fe-27.6Ni-0.89V-0.05C alloy. The alloy was austenitized at 1200°C for 1 hour. Some samples were aged at 850° C for 40 minutes and quenched in 10% brine at room temperature. All the samples were cooled in ethyl alcohol for martensite transformation.A nucleus in an unaged specimen is shown in Fig.1. The nucleus has certain contrast different from the matrix and is shaped like one wing of a butter fly martensite. The SADP of the circled region is measured to be: da=dh, and approximate to dγ(111) and dm(110) with ∠AOB = 55° . It is similar to [011]f.c.c and b patterns in the anglez ∠AOB and the ratio ra/rb, respectively. The SADP shows that the structure of the nucleus is between f.c.c and b.c.c. The dislocation structure within the nucleus is shown in Fig.2. Their Burgers vectors and line directions are also given in it. There are many long dislocations near it without dislocations piled up as shown in Fig.3.Long dislocations are closed at one end as an envelope.


Sign in / Sign up

Export Citation Format

Share Document