1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Contact [7]
3 years ago
11

An alloy with an average grain diameter of 35 μm has a yield strength of 163 Mpa, and when it undergoes strain hardening, the gr

ain diameter reduces to 17 μm with an increase in yield strength to 192 MPa. If the coarseness of the alloy desired for a particular application cannot exceed 12 μm, what will be the expected yield strength?
Chemistry
1 answer:
Lera25 [3.4K]3 years ago
4 0

Answer:

\sigma_y\ =210.2\ MPa  

Explanation:

Given that

d= 35 μm ,yield strength = 163 MPa

d= 17 μm ,yield strength = 192 MPa

As we know that relationship between diameter and yield strength

\sigma_y=\sigma_o+\dfrac{K}{\sqrt d}

\sigma_y\ =Yield\ strength

d = diameter

K =Constant

\sigma_o\ =material\ constant

So now by putting the values

d= 35 μm ,yield strength = 163 MPa

163=\sigma_o+\dfrac{K}{\sqrt 35}      ------------1

d= 17 μm ,yield strength = 192 MPa

192=\sigma_o+\dfrac{K}{\sqrt 17}           ------------2

From equation 1 and 2

192-163=\dfrac{K}{\sqrt 17}-\dfrac{K}{\sqrt 35}

K=394.53

By putting the values of K in equation 1

163=\sigma_o+\dfrac{394.53}{\sqrt 35}

\sigma_o\ =96.31\ MPa

\sigma_y=96.31+\dfrac{394.53}{\sqrt d}

Now when d= 12 μm

\sigma_y=96.31+\dfrac{394.53}{\sqrt 12}

\sigma_y\ =210.2\ MPa

You might be interested in
When it is spring in China, it is ______ in South America
Vanyuwa [196]
I would say fall/ autumn in South America because they are in opposite hemispheres. 
4 0
3 years ago
Calculate the new pressure of a gas if the gas at 50 ˚C and 81.0 kPa is heated to 100 ˚C at a constant volume.
Debora [2.8K]

Answer:

93.5 kPa

Explanation:

Step 1: Given data

  • Initial pressure (P₁): 81.0 kPa
  • Initial temperature (T₁): 50 °C
  • Final pressure (P₂): ?
  • Final volume (T₂): 100 °C

Step 2: Convert the temperatures to the Kelvin scale

When working with gases, we need to consider the absolute temperature. We will convert from Celsius to Kelvin using the following expression.

K = °C + 273.15

T₁: K = 50°C + 273.15 = 323 K

T₂: K = 100°C + 275.15 = 373 K

Step 3: Calculate the final pressure of the gas

At a constant volume, we can calculate the final pressure of the gas using Gay-Lussac's law.

P₁/T₁ = P₂/T₂

P₂ = P₁ × T₂/T₁

P₂ = 81.0 kPa × 373 K/323 K

P₂ = 93.5 kPa

7 0
3 years ago
What is the best reason for the scientific community to accept a theory?
Marianna [84]

Answer: The best reason the scientific community will accept a theory is if it is proven.

4 0
3 years ago
Please help I can't balance and Google isn't helping
DiKsa [7]
The first one is right and so is eight you have to add them together to see if they go together if they dont add what is missing
5 0
3 years ago
What is mass per unit volume called?
harina [27]

Answer:

The correct answer is Density

Explanation:

Hope this helps you

3 0
3 years ago
Other questions:
  • Ozone _____.
    8·2 answers
  • Question 16 A chemistry graduate student is given of a methylamine solution. Methylamine is a weak base with . What mass of shou
    11·1 answer
  • A radio station's channel, such as 100.7 FM or 92.3 FM, is actually it's frequency in megahertz, where 1 MHz=10^6Hz and 1 Hz=1s^
    6·1 answer
  • A solution with a ph less than 7 is called a(n) _____________ and has a higher number of ___________ than a solution with a ph g
    14·1 answer
  • Iron(III) oxide and hydrogen react to form iron and water, like this: (s)(g)(s)(g) At a certain temperature, a chemist finds tha
    14·1 answer
  • How many grams of sodium carbonate contain 1.773 × 1017 carbon atoms
    12·1 answer
  • The glass hand bubbler holds a red liquid. When it heats up, do you see a chemical change or a physical change? How do you know?
    8·1 answer
  • Please help... giving a lot of points and awarding brainliest.
    14·1 answer
  • If 3.00 liters of 2M HCl neutralizes 1.00 liter of NaOH, what is the molarity of the NaOH?
    9·1 answer
  • Calculate the molecular mass of the element
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!