The diffusion coefficients for nickel in iron are given at two temperatures, as follows: T (K) ____________

Question:

The diffusion coefficients for nickel in iron are given at two temperatures, as follows:

T (K) ____________ D (m2/s)

1473 ................. 2.2 × 10-15

1673 ................. 4.8 × 10-14

(a) Determine the values of D0 and the activation energy Qd.

(b) What is the magnitude of D at 1300°C (1573 K)?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Materials Science and Engineering An Introduction

ISBN: 978-1118324578

9th edition

Authors: William D. Callister Jr., David G. Rethwisch

See More Books

Question Posted: Feb 13, 2018 08:34 AM

See More Questions

Cite the values of the diffusion coefficients for the inter-diffusion of carbon in both -iron (BCC) and -iron (FCC) at 900C. Which is larger? Explain why this is the case.
The diffusion coefficients for iron in nickel are given at two temperatures: (a) Determine the values of D 0 and the activation energy Q d . (b) What is the magnitude of D at 1100C (1373 K)? D (m?/s)...
The diffusion coefficients for silver in copper are given at two temperatures: (a) Determine the values of D 0 and Q d . (b) What is the magnitude of D at 875C? T (C) D (m?/s) 650 5.5 x 10-16 900 1.3...
Suppose you have a list of blood platelet counts from 500 patients in a hospital. Which of the following is most helpful in understanding the distribution of those values: frequency table, pie chart,...
You buy a share of The Ludwig Corporation stock for $21.40. You expect it to pay dividends of $1.07 $1.1449, and $1.2250 in Years 1, 2, and 3, respectively, and you expect to sell it at a price of...
Zama CC acquired Machine A ( a second - hand machine ) for R 2 0 0 0 0 0 0 and brought it into use in its manufacturing process on 1 0 January 2 0 1 7 . Zama CC acquired a new manufacturing machine B...
One study examined the personal values of 116 students studying mortuary science with the intention of becoming funeral directors (Shaw \& Duys, 2005). The students completed a well-established...
A spool of wire of mass M and radius R is unwound under a constant force F (Fig. P10.85). Assuming the spool is a uniform solid cylinder that doesnt slip, show that (a) The acceleration of the center...
On 1 0 July 2 0 2 2 Coolum Ltd provides some consulting advice to Florida Inc. ( US ) for an agreed fee of US$ 1 million. The amount is paid into the US bank account of Coolum Ltd on 1 0 July 2 0 2 2...
Family-friendly policies are broadly defined as a group of complementary benefits and programs designed to support employees who are faced with balancing the conflicting demands of work, family, and...
The activation energy for the diffusion of copper in silver is 193,000 J/mol. Calculate the diffusion coefficient at 1200 K (927C), given that D at 1000 K (727C) is 1.0 10-14 m2/s?
The diffusion coefficients for carbon in nickel are given at two temperatures are as follows: T (C) _________ D (m2 / s) 600 ............ 5.5 10-14 700............. 3.9 10-13 (a) Determine the...
Rancher Roy has his ranch next to the farm of farmer Fern. Cattle tend to roam and sometimes stray onto Ferns land and damage her crops. Roy can choose the size of his herd. His revenues are $6 for...
Why is a concern for ESG (environment, social, and governance) becoming more prominent in organizations?
Are there any conflicts that might arise between the issuer and the investment banker when setting the offering price on a stock issue?
Describe the net present social value model of capital budgeting.
Explain how the separation of ownership and control in organizations has led to an agency problem and agency costs.
Why is emotional intelligence important for managers to achieve better performance?
The following data represent the distance s (in feet) that a parachutist has fallen over time t (in seconds). (a) Find the average speed from t = 1 to t = 4 seconds. (b) Find the average speed from t...
In Exercises 15 through 30, find the derivative dy/dx. In some of these problems, you may need to use implicit differentiation or logarithmic differentiation. y ex + et -2x 1 + e
Calculate the maximum internal crack length allowable for a 7075-T651 aluminum alloy (Table 8.1) component that is loaded to a stress one half of its yield strength. Assume that the value of Y is...
(a) For the thin-walled spherical tank discussed in Design Example 8.1, on the basis of critical crack size criterion [as addressed in part (a)], rank the following polymers from longest to shortest...
An S-590 alloy component (Figure 8.32) must have a creep rupture lifetime of at least 100 days at 500C (773 K). Compute the maximum allowable stress level.
Sweeten Company had no jobs in progress at the beginning of the year and no beginning inventories. It started, completed, and sold only two jobs during the year-Job P and Job Q. The company uses a...
1. Review the following tracings, identify the type of BBB, and then explain how you determined your answers 2. Review the following tracing. Do you suspect left ventricular hypertrophy? Explain how...
What are signs that its time to cut corners to get the product launched, and what would you cut?

The diffusion coefficients for nickel in iron are given at two temperatures, as follows: T (K) ____________

Question:

Step by Step Answer:

a Using Equation 59a we set up two simultaneous equations with Q d and D 0 as unknowns as follows No...View the full answer

Materials Science and Engineering An Introduction

Students also viewed these Modern Physics questions