Question

In: Mechanical Engineering

6.Demonstrate the effect of cold work on the yield strength, tensile strength, percent elongation, Rockwell B...

6.Demonstrate the effect of cold work on the yield strength, tensile strength, percent elongation, Rockwell B hardness, and modulus of elasticity of Red Brass for flat products by plotting these quantities as functions of the percent cold work using EXCEL.  Use English system data obtained from www.matweb.comfor HXX tempers.

Solutions

Expert Solution

Estimated data from available material sources for %cold work and other mechanical properties for Red Brass for Flat parts with reference to www.matweb.com

Red brass UNS C23000 (230 Brass) H08 temper flat products

% cold work (%CW) Hardness (Rockwell) YS(Mpa) UTS (Mpa) % Elongation
10 32 168.00 280.00 40.00
14 40 285.00 415.00 34.00
18 48 366.00 460.00 25.00
22 54 375.00 478.00 20.00
26 61 387.00 487.00 16.00
30 69 398.00 505.00 10.00
34 74 410.00 509.00 8.00
38 80 425.00 514.00 5.00
42 86 435.00 520.00 4.00

Effect of % cold work on :

Yield Strength : increases

Tensile Strength : increases

Hardness : Increases

% elongation : Decreases


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