Explain why some alloys’ strength increases with aging then decreases again.

Solutions

Expert Solution

Alloys are defined by the metallic bond character. The strength-ductility-toughness relationship is dependent on the microstructure(and the processing which provides the microstructural variations) and mechanical properties of the mateals forming an alloy. on aging, involing the changes in the microstructural properties of it , it contains approx more than 60% y' phase in cubic shape(y matrix channel) The y matrix channel width increases with aging time.the directional growth of the y' particles is the result of the combined actions of thermodynamics and kinetics.In general,The process of aging can be understand as, firstly the matrix channel present there broadened with age of time then reach max strength, after then on aging it decreases further due to stress rupture,can say the dislocation movement there. Morover,the volume fraction of y' phase reduces with the increasing aging time, which decreases the strengthning effect of the aged alloy as well.

queen_honey_blossom answered 2 hours ago

Next > < Previous

Related Solutions

explain why we are doing a solution treatment before aging treatment for alloys. b) describe the...

explain why we are doing a solution treatment before aging treatment for alloys. b) describe the microstructure difference between aged alloys with and without solution treatment+quenching.

Explain in thermodynamic terms why the melting temperature of ice decreases as pressure increases.

Explain why the partial pressure of oxygen decreases and carbon dioxide increases from their values in...

Explain why the partial pressure of oxygen decreases and carbon dioxide increases from their values in the atmosphere to air within the alveoli.

1. Explain if the concentration of the base increases, decreases, is not affected or cannot be...

1. Explain if the concentration of the base increases, decreases, is not affected or cannot be calculated, for the following situations: a) the concentration of the HCl solution was less than the actual value b) when titrating the HCl sample, the tip of the burette contained air bubbles c) an HCl sample greater than 10.0mL was measured by mistake d) no indicator was added e) the container where the HCl was poured was contaminated with acid

What are some of the competing theories to explain why humans age and aging creates a...

What are some of the competing theories to explain why humans age and aging creates a post reproductive period. How does this life course give humans an evolutionary advantage? How does economics lend to biology in these models? Which seems most plausible? What does the model imply for present day time preferences? (How does biology lend to economics?

For liquids, the viscosity decreases as the temperature increases. For gases, the viscosity increases as the...

For liquids, the viscosity decreases as the temperature increases. For gases, the viscosity increases as the temperature increases. Your objective is to provide an explanation for these trends. You may do internet research, but your response must be in your own words and references provided. Your response must be typed and grammatically correct.

An increase in revenue always: increases stockholders' equity. increases assets. decreases stockholders' equity. decreases assets. Which...

An increase in revenue always: increases stockholders' equity. increases assets. decreases stockholders' equity. decreases assets. Which of the following journal entries would decrease stockholders' equity? Debit Prepaid Insurance and credit Cash. Debit Deferred Revenue and credit Service Revenue. Debit Supplies and credit Accounts Payable. Debit Insurance Expense and credit Cash. In April, the Surf and Sand Hotel books and accepts a cash payment for $25,600 for vacation services to be provided during in July. The journal entry recorded in April...

A. What happens to the confidence interval if the significance level decreases or increases? Explain. B....

A. What happens to the confidence interval if the significance level decreases or increases? Explain. B. What happens to the margin error if the significance level increases or decreases? Explain. c. How are margins of error related to confidence Intervals? Explain.

Explain the CB’s discount rate. When CB increases it? When CB decreases it?

WHY PRIOR SERVICE COST DECREASES OTHER COMPREHENSIVE INCOME? WHY THE AMORTIZATION OF THE PSC INCREASES PENSION...

WHY PRIOR SERVICE COST DECREASES OTHER COMPREHENSIVE INCOME? WHY THE AMORTIZATION OF THE PSC INCREASES PENSION EXPENSE AND OCI?

Subjects