scholarly journals Facile route to bulk ultrafine-grain steels for high strength and ductility

Nature ◽  
2021 ◽  
Vol 590 (7845) ◽  
pp. 262-267
Author(s):  
Junheng Gao ◽  
Suihe Jiang ◽  
Huairuo Zhang ◽  
Yuhe Huang ◽  
Dikai Guan ◽  
...  
Keyword(s):  
High Strength ◽  
Ultrafine Grain ◽  
Strength And Ductility ◽  
Facile Route

APEX 417

Alloy Digest ◽  
1958 ◽  
Vol 7 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Dimensional Stability ◽  
High Strength ◽  
Heat Treating ◽  
Casting Alloy ◽  
Excellent Corrosion Resistance ◽  
Magnesium Casting ◽  
Strength And Ductility

Abstract APEX 417 is an aluminum-magnesium casting alloy having high strength and ductility, excellent corrosion resistance and good dimensional stability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-61. Producer or source: Apex Smelting Company.

ALUMINUM 5056

Alloy Digest ◽  
1979 ◽  
Vol 28 (2) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
High Strength ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Temperature Performance ◽  
Wrought Aluminum ◽  
Strength And Ductility ◽  
Cold Workability ◽  
Manganese Chromium

Abstract ALUMINUM 5056 is a non-heat-treatable wrought aluminum-magnesium-manganese-chromium alloy possessing high strength and ductility along with good hot and cold workability. It is recommended for such applications as rivets and screen wire. It may be used with or without cladding. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-126. Producer or source: Various aluminum companies. Originally published June 1963, revised February 1979.

COPPER ALLOY No. C86100

Alloy Digest ◽  
1986 ◽  
Vol 35 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Copper Alloy ◽  
Iron Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Good Combination ◽  
Good Resistance ◽  
Copper Zinc ◽  
Strengthening Element ◽  
Strength And Ductility

Abstract Copper Alloy No. C86100 is a copper-zinc-aluminum-manganese-iron alloy, sometimes classified as a high-strength yellow brass. The principal strengthening element is aluminum. Its tensile strength is typically 95,000 psi (655 MPa). It has a good combination of strength and ductility along with good resistance to corrosion. Its typical uses are marine castings, gears, gun mounts, bearing and bushings. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-510. Producer or source: Copper alloy foundries.

COPPER ALLOY No. C86700

Alloy Digest ◽  
1985 ◽  
Vol 34 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Good Resistance ◽  
Strength And Ductility

Abstract Copper Alloy No. C86700 is a free-machining, high-tensile (typically 85,000 psi) cast manganese bronze; it is also known as high-strength yellow brass. It has an excellent combination of strength and ductility and good resistance to corrosion in numerous environments, including seawater. Typical uses are valve stems, moderate-duty gears and marine components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-499. Producer or source: Copper alloy foundries.

Additively manufactured high strength and ductility CrCoNi medium entropy alloy with hierarchical microstructure

2021 ◽  
pp. 141545
Author(s):  
Bolun Han ◽  
Chengcheng Zhang ◽  
Kai Feng ◽  
Zhuguo Li ◽  
Xiancheng Zhang ◽  
...  
Keyword(s):  
High Strength ◽  
Hierarchical Microstructure ◽  
Strength And Ductility

scholarly journals Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility

2015 ◽  
Vol 112 (47) ◽  
pp. 14501-14505 ◽  
Author(s):  
Xiaolei Wu ◽  
Muxin Yang ◽  
Fuping Yuan ◽  
Guilin Wu ◽  
Yujie Wei ◽  
...  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
High Strength ◽  
Back Stress ◽  
Coarse Grained ◽  
Ultrafine Grain ◽  
Asymmetric Rolling ◽  
Dislocation Hardening ◽  
Ultrafine Grained ◽  
Lamella Structure

Grain refinement can make conventional metals several times stronger, but this comes at dramatic loss of ductility. Here we report a heterogeneous lamella structure in Ti produced by asymmetric rolling and partial recrystallization that can produce an unprecedented property combination: as strong as ultrafine-grained metal and at the same time as ductile as conventional coarse-grained metal. It also has higher strain hardening than coarse-grained Ti, which was hitherto believed impossible. The heterogeneous lamella structure is characterized with soft micrograined lamellae embedded in hard ultrafine-grained lamella matrix. The unusual high strength is obtained with the assistance of high back stress developed from heterogeneous yielding, whereas the high ductility is attributed to back-stress hardening and dislocation hardening. The process discovered here is amenable to large-scale industrial production at low cost, and might be applicable to other metal systems.

Paradox of Strength and Ductility in Metals Processed Bysevere Plastic Deformation

2002 ◽  
Vol 17 (1) ◽  
pp. 5-8 ◽  
Author(s):  
R. Z. Valiev ◽  
I. V. Alexandrov ◽  
Y. T. Zhu ◽  
T. C. Lowe
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Grain Size ◽  
Yield Strength ◽  
Mechanical Behavior ◽  
High Strength ◽  
High Ductility ◽  
Elongation To Failure ◽  
Failure Ductility ◽  
Strength And Ductility

It is well known that plastic deformation induced by conventional forming methodssuch as rolling, drawing or extrusion can significantly increase the strength of metalsHowever, this increase is usually accompanied by a loss of ductility. For example, Fig.1 shows that with increasing plastic deformation, the yield strength of Cu and Almonotonically increases while their elongation to failure (ductility) decreases. Thesame trend is also true for other metals and alloys. Here we report an extraordinarycombination of high strength and high ductility produced in metals subject to severeplastic deformation (SPD). We believe that this unusual mechanical behavior is causedby the unique nanostructures generated by SPD processing. The combination ofultrafine grain size and high-density dislocations appears to enable deformation by newmechanisms. This work demonstrates the possibility of tailoring the microstructures ofmetals and alloys by SPD to obtain both high strength and high ductility. Materialswith such desirable mechanical properties are very attractive for advanced structuralapplications.

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